10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

	(Mark One)
[x]	QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2012

OR

[ ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from ____________ to ____________

Commission file number 000-50256

WHITESTONE REIT

(Exact Name of Registrant as Specified in Its Charter)

Maryland	76-0594970
(State or Other Jurisdiction of Incorporation or Organization)	(I.R.S. Employer Identification No.)

2600 South Gessner, Suite 500 Houston, Texas	77063
(Address of Principal Executive Offices)	(Zip Code)

(713) 827-9595

(Registrant's Telephone Number, Including Area Code)

N/A

(Former Name, Former Address and Former Fiscal Year, if Changed Since Last Report)

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.  ýYes     ¨No

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§ 232.405) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).  ýYes    ¨No

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer ¨                                                                                      Accelerated filer ý

Non-accelerated filer (Do not check if a smaller reporting company) ¨              Smaller reporting company ¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). ¨Yes   ý No

As of November 6, 2012, there were 16,844,880 common shares, $0.001 par value per share, outstanding.

PART I - FINANCIAL INFORMATION

Item 1.	Financial Statements.	1
	Consolidated Balance Sheets as of September 30, 2012 (Unaudited) and December 31, 2011	1
	Consolidated Statements of Operations and Comprehensive Income (Loss) (Unaudited) for the Three and Nine Months Ended September 30, 2012 and 2011	2
	Consolidated Statement of Changes in Equity (Unaudited) for the Nine Months Ended September 30, 2012	4
	Consolidated Statements of Cash Flows (Unaudited) for the Nine Months Ended September 30, 2012 and 2011	5
	Notes to Consolidated Financial Statements (Unaudited)	7
Item 2.	Management's Discussion and Analysis of Financial Condition and Results of Operations.	20
Item 3.	Quantitative and Qualitative Disclosures About Market Risk.	37
Item 4.	Controls and Procedures.	37

PART II - OTHER INFORMATION

Item 1.	Legal Proceedings.	38
Item 1A.	Risk Factors.	38
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds.	38
Item 3.	Defaults Upon Senior Securities.	38
Item 4.	Mine Safety Disclosures.	38
Item 5.	Other Information.	38
Item 6.	Exhibits.	38
	Signatures	39
	Exhibit Index	40

PART I. FINANCIAL INFORMATION

Item 1. Financial Statements.

Whitestone REIT and Subsidiaries

CONSOLIDATED BALANCE SHEETS

(in thousands, except share data)

	September 30, 2012			December 31, 2011
	(unaudited)
ASSETS
Real estate assets, at cost
Property	$	389,280		$	292,360
Accumulated depreciation	(51,362		)	(45,472		)
Total real estate assets	337,918			246,888
Cash and cash equivalents	8,339			5,695
Marketable securities	1,373			5,131
Escrows and acquisition deposits	5,539			4,996
Accrued rents and accounts receivable, net of allowance for doubtful accounts	7,177			6,053
Unamortized lease commissions and loan costs	4,269			3,755
Prepaid expenses and other assets	1,271			975
Total assets	$	365,886		$	273,493
LIABILITIES AND EQUITY
Liabilities:
Notes payable	$	167,816		$	127,890
Accounts payable and accrued expenses	11,099			9,017
Tenants' security deposits	2,846			2,232
Dividends and distributions payable	5,027			3,647
Total liabilities	186,788			142,786
Commitments and contingencies:	—			—
Equity:
Preferred shares, $0.001 par value per share; 50,000,000 shares authorized; none issued and outstanding as of September 30, 2012 and December 31, 2011, respectively	—			—
Common shares, $0.001 par value per share; 400,000,000 shares authorized; 16,839,609 and 11,437,855 issued and outstanding as of September 30, 2012 and December 31, 2011, respectively	15			10
Additional paid-in capital	223,007			158,127
Accumulated other comprehensive loss	(427		)	(1,119		)
Accumulated deficit	(51,686		)	(41,060		)
Total Whitestone REIT shareholders' equity	170,909			115,958
Noncontrolling interest in subsidiary	8,189			14,749
Total equity	179,098			130,707
Total liabilities and equity	$	365,886		$	273,493

See accompanying notes to Consolidated Financial Statements

1

Whitestone REIT and Subsidiaries

CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS)

(Unaudited)

(in thousands, except per share data)

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2012			2011			2012			2011
Property revenues
Rental revenues	$	8,992		$	7,086		$	25,643		$	20,462
Other revenues	2,626			1,705			7,388			4,485
Total property revenues	11,618			8,791			33,031			24,947
Property expenses
Property operation and maintenance	2,969			2,376			8,080			6,328
Real estate taxes	1,629			1,262			4,442			3,390
Total property expenses	4,598			3,638			12,522			9,718
Other expenses (income)
General and administrative	1,888			1,495			5,392			4,737
Depreciation and amortization	3,112			2,161			8,319			6,126
Interest expense	1,815			1,430			5,261			4,277
Interest, dividend and other investment income	(121		)	(264		)	(274		)	(379		)
Total other expense	6,694			4,822			18,698			14,761
Income before gain (loss) on sale or disposal of assets and income taxes	326			331			1,811			468
Provision for income taxes	(77		)	(54		)	(212		)	(165		)
Gain (loss) on sale or disposal of assets	(77		)	1			(105		)	(17		)
Income before gain on sale of property	172			278			1,494			286
Gain on sale of property	—			397			—			397
Net income	172			675			1,494			683
Less: Net income attributable to noncontrolling interests	9			97			99			122
Net income attributable to Whitestone REIT	$	163		$	578		$	1,395		$	561

See accompanying notes to Consolidated Financial Statements

2

Whitestone REIT and Subsidiaries

CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS)

(Unaudited)

(in thousands, except per share data)

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2012			2011			2012			2011
Basic and Diluted Earnings Per Share:
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares	$	0.01		$	0.05		$	0.11		$	0.07
Weighted average number of common shares outstanding:
Basic	13,842			10,797			12,409			8,285
Diluted	13,961			10,809			12,526			8,300
Distributions declared per common share / OP unit	$	0.2850		$	0.2850		$	0.8550		$	0.8550
Consolidated Statements of Comprehensive Income (Loss)
Net income	$	172		$	675		$	1,494		$	683
Other comprehensive gain (loss)
Unrealized loss on cash flow hedging activities	(9		)	—			(9		)	—
Unrealized gain (loss) on available-for-sale marketable securities	92			(1,672		)	891			(1,881		)
Comprehensive income (loss)	255			(997		)	2,376			(1,198		)
Less: Comprehensive income (loss) attributable to noncontrolling interests	14			(143		)	158			(214		)
Comprehensive income (loss) attributable to Whitestone REIT	$	241		$	(854	)	$	2,218		$	(984	)

See accompanying notes to Consolidated Financial Statements

3

Whitestone REIT and Subsidiaries

CONSOLIDATED STATEMENT OF CHANGES IN EQUITY

(Unaudited)

(in thousands)

											Accumulated
					Additional						Other			Total			Noncontrolling
	Common Shares				Paid-In			Accumulated			Comprehensive			Shareholders'			interests					Total
	Shares		Amount		Capital			Deficit			Loss			Equity			Units		Dollars			Equity
Balance, December 31, 2011	11,438		$	10	$	158,127		$	(41,060	)	$	(1,119	)	$	115,958		1,361		$	14,749		$	130,707
Exchange of noncontrolling interest OP units for common shares	575		—		6,224			—			(118		)	6,106			(575	)	(6,106		)	—
Exchange offer costs	—		—		(334		)	—			—			(334		)	—		—			(334		)
Issuance of shares, net of costs	4,830		5		58,674			—			(13		)	58,666			—		13			58,679
Issuance of shares under dividend reinvestment plan	5		—		68			—			—			68			—		—			68
Share-based compensation	(8	)	—		248			—			—			248			—		—			248
Distributions	—		—		—			(12,021		)	—			(12,021		)	—		(625		)	(12,646		)
Unrealized loss on change in value of cash flow hedge	—		—		—			—			(9		)	(9		)	—		—			(9		)
Unrealized gain on change in fair value of available-for-sale marketable securities	—		—		—			—			832			832			—		59			891
Net income	—		—		—			1,395			—			1,395			—		99			1,494
Balance September 30, 2012	16,840		$	15	$	223,007		$	(51,686	)	$	(427	)	$	170,909		786		$	8,189		$	179,098

See accompanying notes to Consolidated Financial Statements

4

Whitestone REIT and Subsidiaries

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited)

(in thousands)

	Nine Months Ended September 30,
	2012			2011
Cash flows from operating activities:
Net income	$	1,494		$	683
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	7,255			5,701
Amortization of deferred loan costs	1,064			425
Amortization of notes payable discount	86			—
Gain on sale of marketable securities	(110		)	(192		)
Loss (gain) on sale or disposal of assets and properties	105			(380		)
Bad debt expense	720			379
Share-based compensation	384			233
Changes in operating assets and liabilities:
Escrows and acquisition deposits	29			385
Accrued rents and accounts receivable	(1,876		)	(959		)
Unamortized lease commissions	(674		)	(705		)
Prepaid expenses and other assets	630			581
Accounts payable and accrued expenses	200			13
Tenants' security deposits	614			160
Net cash provided by operating activities	9,921			6,324
Cash flows from investing activities:
Acquisitions of real estate	(79,400		)	(34,034		)
Additions to real estate	(9,297		)	(3,970		)
Investments in marketable securities	(750		)	(13,520		)
Proceeds from sale of property	—			1,571
Proceeds from sales of marketable securities	5,509			7,252
Net cash used in investing activities	(83,938		)	(42,701		)
Cash flows from financing activities:
Distributions paid to common shareholders	(10,543		)	(6,852		)
Distributions paid to OP unit holders	(783		)	(1,544		)
Proceeds from issuance of common shares	58,679			59,667
Payments of exchange offer costs	(249		)	—
Proceeds from notes payable	—			2,905
Proceeds from revolving credit facility, net	33,956			—
Repayments of notes payable	(2,853		)	(2,356		)
Payments of loan origination costs	(1,546		)	(374		)
Net cash provided by financing activities	76,661			51,446
Net increase in cash and cash equivalents	2,644			15,069
Cash and cash equivalents at beginning of period	5,695			17,591
Cash and cash equivalents at end of period	$	8,339		$	32,660

See accompanying notes to Consolidated Financial Statements

5

Whitestone REIT and Subsidiaries

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited)

(in thousands)

	Nine Months Ended September 30,
	2012			2011
Supplemental disclosure of cash flow information:
Cash paid for interest	$	5,250		$	4,271
Cash paid for taxes	$	225		$	215
Non cash investing and financing activities:
Disposal of fully depreciated real estate	$	523		$	162
Financed insurance premiums	$	856		$	649
Value of shares issued under dividend reinvestment plan	$	68		$	—
Accrued offering costs	$	85		$	—
Acquired interest rate swap	$	1,901		$	—
Debt discount on acquired note payable	$	(1,329	)	$	—
Value of common shares exchanged for OP units	$	6,224		$	—
Change in fair value of available-for-sale securities	$	891		$	(1,881	)
Change in fair value of cash flow hedge	$	(9	)	$	—

See accompanying notes to Consolidated Financial Statements

6

WHITESTONE REIT AND SUBSIDIARIES

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

September 30, 2012

(Unaudited)

The use of the words “we,” “us,” “our,” “Company” or “Whitestone” refers to Whitestone REIT and our consolidated subsidiaries, except where the context otherwise requires.

1.  INTERIM FINANCIAL STATEMENTS

The consolidated financial statements included in this report are unaudited; however, amounts presented in the consolidated balance sheet as of December 31, 2011 are derived from our audited consolidated financial statements as of that date.  The unaudited financial statements as of September 30, 2012 have been prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) for interim financial information on a basis consistent with the annual audited consolidated financial statements and with the instructions to Form 10-Q.

The consolidated financial statements presented herein reflect all adjustments which, in the opinion of management, are necessary for a fair presentation of the financial position of Whitestone and our subsidiaries as of September 30, 2012, and the results of operations for the three and nine month periods ended September 30, 2012 and 2011, the consolidated statements of changes in equity for the nine month period ended September 30, 2012 and cash flows for the nine month periods ended September 30, 2012 and 2011.  All of these adjustments are of a normal recurring nature.  The results of operations for the interim periods are not necessarily indicative of the results expected for a full year.  The statements should be read in conjunction with the audited consolidated financial statements and the notes thereto which are included in our Annual Report on Form 10-K for the year ended December 31, 2011.

Business.  Whitestone was formed as a real estate investment trust (“REIT”), pursuant to the Texas Real Estate Investment Trust Act on August 20, 1998.  In July 2004, Whitestone changed its state of organization from Texas to Maryland.  Whitestone serves as the general partner of Whitestone REIT Operating Partnership, L.P. (the “Operating Partnership”), which was formed on December 31, 1998 as a Delaware limited partnership.  Whitestone currently conducts substantially all of its operations and activities through the Operating Partnership.  As the sole general partner of the Operating Partnership, Whitestone has the exclusive authority to manage and conduct the business of the Operating Partnership, subject to certain customary exceptions.  As of September 30, 2012 and December 31, 2011, Whitestone owned and operated 50 and 45 commercial properties, respectively in and around Houston, Dallas, San Antonio, Chicago and Phoenix.

2.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Consolidation.  We are the sole general partner of the Operating Partnership and possess full legal control and authority over the operations of the Operating Partnership.  As of September 30, 2012 and December 31, 2011, we owned a majority of the partnership interests in the Operating Partnership.  Consequently, the accompanying consolidated financial statements include the accounts of the Operating Partnership.  All significant inter-company balances have been eliminated. Noncontrolling interest in the accompanying consolidated financial statements represents the share of equity and earnings of the Operating Partnership allocable to holders of partnership interests other than us.  Net income or loss is allocated to noncontrolling interests based on the weighted-average percentage ownership of the Operating Partnership during the period.  Issuances of additional common shares of beneficial interest, par value $0.001 per share, in Whitestone (the "common shares") and units of limited partnership interest in the Operating Partnership that are convertible into cash or, at our option, common shares on a one-for-one basis (the “OP units”) changes the ownership interests of both the noncontrolling interests and Whitestone.

Basis of Accounting.  Our financial records are maintained on the accrual basis of accounting whereby revenues are recognized when earned and expenses are recorded when incurred.

Use of Estimates.   The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting period.  Significant estimates that we use include the estimated fair values of properties acquired, the estimated useful lives for depreciable and amortizable assets and costs, the estimated allowance for doubtful accounts and estimates supporting our impairment analysis for the carrying values of our real estate assets.  Actual results could differ from those estimates.

7

WHITESTONE REIT AND SUBSIDIARIES

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

September 30, 2012

(Unaudited)

Reclassifications.  We have reclassified certain prior period amounts in the accompanying consolidated financial statements in order to be consistent with the current period presentation.  These reclassifications had no effect on net income, total assets, total liabilities or equity. As of June 27, 2012, prior period Class A and Class B common shares have been consolidated into a single class of common shares. See additional discussion related to the reclassification in Note 10.

Marketable Securities. We classify our existing marketable equity securities as available-for-sale in accordance with the Financial Accounting Standards Board's ("FASB") Investments-Debt and Equity Securities guidance. These securities are carried at fair value with unrealized gains and losses reported in equity as a component of accumulated other comprehensive income or loss. The fair value of the marketable securities is determined using Level 1 inputs under FASB Accounting Standards Codification ("ASC") 820, "Fair Value Measurements and Disclosures." Level 1 inputs represent quoted prices available in an active market for identical investments as of the reporting date. Gains and losses on securities sold are based on the specific identification method, and are reported as a component of interest, dividend and other investment income. We recognized gains on the sale of marketable securities of approximately $78,000 and $154,000 for the three months ended September 30, 2012 and 2011, respectively, and $110,000 and $192,000 for the nine months ended September 30, 2012 and 2011, respectively. As of September 30, 2012, our investment in available-for-sale marketable securities was approximately $1,373,000, which includes an aggregate unrealized loss of approximately $438,000.

Derivative Instruments and Hedging Activities. On August 8, 2012, as part of our acquisition of Paradise Plaza (see Note 15), we assumed a $9.2 million variable rate note (see Note 6). The note included an interest rate swap that had a fixed interest rate of 5.72%. We have designated the interest rate swap as a cash flow hedge with the effective portion of the changes in fair value recorded in comprehensive income (loss) and subsequently reclassified into earnings in the period that the hedged transaction affects earnings. The ineffective portion of the change in fair value, if any, is recognized directly in earnings. As of September 30, 2012, we consider our cash flow hedge to be highly effective. Our cash flow hedge is determined using Level 2 inputs under ASC 820. Level 2 inputs represent quoted prices in active markets for similar assets or liabilities; quoted prices in markets that are not active; and model-derived valuations whose inputs are observable.

As of September 30, 2012, the fair value our cash flow hedge was $1.8 million. For the three and nine months ended September 30, 2012, we recognized $9,000 as other comprehensive losses. For the three and nine months ended September 30, 2012, we did not recognize any portion of the cash flow hedge into earnings.

Development Properties. Land, buildings and improvements are recorded at cost. Expenditures related to the development of real estate are carried at cost which includes capitalized carrying charges and development costs. Carrying charges, primarily interest, real estate taxes, loan fees, and direct and indirect development costs related to buildings under construction, are capitalized as part of construction in progress. The capitalization of such costs ceases when the property, or any completed portion, becomes available for occupancy. For the three months ended September 30, 2012, approximately $47,000 and $50,000 in interest expense and real estate taxes, respectively, were capitalized, and for the nine months ended September 30, 2012, approximately $135,000 and $113,000 in interest expense and real estate taxes, respectively, were capitalized. No interest expense or real estate taxes were capitalized during the three or nine months ended September 30, 2011.

Share-Based Compensation.   From time to time, we award nonvested restricted common share awards or restricted common share unit awards, which may be converted into common shares, to executive officers and employees under our 2008 Long-Term Equity Incentive Ownership Plan (the “2008 Plan”).  The vast majority of the awarded shares and units vest when certain performance conditions are met.  We recognize compensation expense when achievement of the performance conditions is probable based on management's most recent estimates using the fair value of the shares as of the grant date. We recognized $118,000 and $78,000 in share-based compensation for the three months ended September 30, 2012 and 2011, respectively, and we recognized $384,000 and $233,000 in share-based compensation for the nine months ended September 30, 2012 and 2011, respectively.

8

WHITESTONE REIT AND SUBSIDIARIES

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

September 30, 2012

(Unaudited)

Noncontrolling Interests.  Noncontrolling interests is the portion of equity in a subsidiary not attributable to a parent.  The ownership interests not held by the parent are considered noncontrolling interests.  Accordingly, we have reported noncontrolling interests in equity on the consolidated balance sheets but separate from Whitestone's equity.  On the consolidated statements of operations, subsidiaries are reported at the consolidated amount, including both the amount attributable to Whitestone and noncontrolling interests.  Consolidated statements of changes in equity are included for quarterly financial statements, including beginning balances, activity for the period and ending balances for shareholders' equity, noncontrolling interests and total equity.

See our Annual Report on Form 10-K for the year ended December 31, 2011 for further discussion on significant accounting policies.

Recent Accounting Pronouncements.  There are no new unimplemented accounting pronouncements that are expected to have a material impact on our results of operations, financial position or cash flows.

3. MARKETABLE SECURITIES

All of our marketable securities were classified as available-for-sale securities as of September 30, 2012 and December 31, 2011. Available-for-sale securities consisted of the following (in thousands):

	September 30, 2012
	Amortized Cost		Gains in Accumulated Other Comprehensive Income		Losses in Accumulated Other Comprehensive Income			Estimated Fair Value
Real estate common stock	$	1,811	$	—	$	(438	)	$	1,373
Total available-for-sale securities	$	1,811	$	—	$	(438	)	$	1,373

	December 31, 2011
	Amortized Cost		Gains in Accumulated Other Comprehensive Income		Losses in Accumulated Other Comprehensive Income			Estimated Fair Value
Exchange-traded fund	$	301	$	—	$	(37	)	$	264
Real estate sector mutual funds	351		—		(55		)	296
Real estate common stock	5,808		—		(1,237		)	4,571
Total available-for-sale securities	$	6,460	$	—	$	(1,329	)	$	5,131

During the three and nine months ended September 30, 2012, available-for-sale securities were sold for total proceeds of $1,583,000 and $5,509,000, respectively. The gross realized gains and losses on these sales during the three months ended September 30, 2012 totaled $78,000 and $0, respectively, and the gross realized gains and losses on the sales during the nine months ended September 30, 2012 totaled $152,000 and $42,000, respectively. During the three and nine months ended September 30, 2011, available-for-sale securities were sold for total proceeds of $6,343,000 and $7,252,000, respectively. Gross realized gains or losses on the sales recognized during the three months ended September 30, 2011 were $263,000 and $109,000, respectively, and the gross realized gains and losses on the sales during the nine months ended September 30, 2011 totaled $302,000 and $110,000, respectively.

9

WHITESTONE REIT AND SUBSIDIARIES

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

September 30, 2012

(Unaudited)

4. ACCRUED RENTS AND ACCOUNTS RECEIVABLE, NET

Accrued rents and accounts receivable, net consists of amounts accrued, billed and due from tenants, allowance for doubtful accounts and other receivables as follows (in thousands):

	September 30, 2012			December 31, 2011
Tenant receivables	$	3,767		$	1,914
Accrued rents and other recoveries	5,393			5,505
Allowance for doubtful accounts	(1,983		)	(1,366		)
Total	$	7,177		$	6,053

5. UNAMORTIZED LEASING COMMISSIONS AND LOAN COSTS

Costs which have been deferred consist of the following (in thousands):

	September 30, 2012			December 31, 2011
Leasing commissions	$	5,378		$	5,326
Deferred financing cost	4,463			2,916
Total cost	9,841			8,242
Less: leasing commissions accumulated amortization	(2,890		)	(2,861		)
Less: deferred financing cost accumulated amortization	(2,682		)	(1,626		)
Total cost, net of accumulated amortization	$	4,269		$	3,755

6. DEBT

Debt consisted of the following as of the dates indicated (in thousands):

Description	September 30, 2012		December 31, 2011
Fixed rate notes
$1.4 million 5.00% Note, due 2012	$	1,363	$	1,318
$14.1 million 5.695% Note, due 2013	13,923		14,110
$3.0 million 6.00% Note, due 2021 (1)	2,952		2,978
$10.0 million 6.04% Note, due 2014	9,189		9,326
$1.5 million 6.50% Note, due 2014	1,451		1,471
$11.2 million 6.52% Note, due 2015	10,648		10,763
$21.4 million 6.53% Notes, due 2013	19,034		19,524
$24.5 million 6.56% Note, due 2013	23,254		23,597
$9.9 million 6.63% Notes, due 2014	9,001		9,221
$0.7 million 2.97% Note, due 2012	193		23
Floating rate notes
Unsecured line of credit, LIBOR plus 2.75% to 3.75%, due 2015	45,000		11,000
$9.2 million, Prime Rate less 2.00%, due 2017	7,861		—
$26.9 million, LIBOR plus 2.86% Note, due 2013	23,947		24,559
	$	167,816	$	127,890

10

WHITESTONE REIT AND SUBSIDIARIES

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

September 30, 2012

(Unaudited)

⁽¹⁾  The 6.00% interest rate is fixed through March 30, 2016. On March 31, 2016 the interest rate will reset to the rate of interest for a five-year balloon note with a thirty-year amortization as published by the Federal Home Loan Bank.

As of September 30, 2012, our $122.6 million in secured debt was collateralized by 27 properties with a carrying value of $162.5 million.  Our loans contain restrictions that would require prepayment penalties for the acceleration of outstanding debt and are secured by deeds of trust on certain of our properties and by assignment of the rents and leases associated with those properties.  As of September 30, 2012, we were in compliance with all loan covenants.

On August 8, 2012, we assumed a $9.2 million variable rate note as part of our acquisition of Paradise Plaza (See Note 15). The variable rate is based on the Prime Rate less 2.00% and matures on December 27, 2017. We consider the variable rate to be below-market and have imputed an interest rate of 4.13%, which we consider to be an appropriate market rate. As a result, we recorded a discount on the note of $1.3 million, which will amortize into interest expense over the life of the loan. See Note 2 to the accompanying consolidated financial statements for a discussion of the interest rate swap included with this note.

Our $125 million unsecured revolving credit facility (the “Credit Facility”), which is available to us for acquisitions of properties and and working capital, is our primary source of additional credit. As of September 30, 2012, $45.0 million was drawn on the Credit Facility, and our borrowing capacity was $80.0 million, assuming use of the proceeds to acquire properties, or repayment of debt on properties, that are eligible to be included in the unsecured borrowing base. The Credit Facility bears interest at LIBOR plus 2.75% to 3.75%, and matures on February 27, 2015. As of September 30, 2012, the interest rate was 3.00%.

We are the guarantor for funds borrowed by the Operating Partnership under the Credit Facility. The Credit Facility contains customary terms and conditions, including, without limitation, affirmative and negative covenants such as information reporting requirements, maximum secured indebtedness to total asset value, minimum EBITDA (earnings before interest, taxes, depreciation, amortization and extraordinary items) to fixed charges, minimum property net operating income to total indebtedness and maintenance of net worth. The Credit Facility also contains customary events of default with customary notice and cure, including, without limitation, nonpayment, breach of covenant, material misrepresentation of representations and warranties, cross-default to other major indebtedness, change of control, bankruptcy and loss of REIT tax status. As of September 30, 2012, we were in compliance with all covenants.

Scheduled maturities of our outstanding debt as of September 30, 2012 were as follows (in thousands):

Year	Amount Due
2012	$	2,291
2013	80,292
2014	19,171
2015	55,317
2016	73
Thereafter	10,672
Total	$	167,816

We will have approximately $14 million of debt maturing in June 2013 and approximately $66 million maturing in October and November 2013. The majority of this debt is with insurance companies and was entered into in late 2008. We have begun renewal discussions with our current lenders and expect to renew this debt with our current lenders or new lenders at rates and terms similar or better than our current rates and terms. We also have availability under our Credit Facility should we be unable to obtain similar or better financing from our current lenders or new lenders.

11

WHITESTONE REIT AND SUBSIDIARIES

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

September 30, 2012

(Unaudited)

7.  EARNINGS PER SHARE

Basic earnings per share for our common shareholders is calculated by dividing income from continuing operations excluding amounts attributable to unvested restricted shares and the net income attributable to non controlling interests by our weighted-average common shares outstanding during the period.  Diluted earnings per share is computed by dividing the net income attributable to common shareholders excluding amounts attributable to unvested restricted shares and the net income attributable to non controlling interests by the weighted-average number of common shares including any dilutive unvested restricted shares.

Certain of our performance-based restricted common shares are considered participating securities which require the use of the two-class method for the computation of basic and diluted earnings per share.   During the three months ended September 30, 2012 and 2011, 786,191 and 1,814,569 OP units, respectively, were excluded from the calculation of diluted earnings per share because their effect would be anti-dilutive, and during the nine months ended September 30, 2012 and 2011, 886,407 and 1,814,569 OP units, respectively, were excluded from the calculation of diluted earnings per share because their effect would be anti-dilutive.

For the three months ended September 30, 2012 and 2011, distributions of $45,000 and $53,000, respectively, were made to holders of certain restricted common shares, $40,000 and $49,000 of which were charged against earnings. For the nine months ended September 30, 2012 and 2011, distributions of $148,000 and $160,000, respectively, were made to holders of certain restricted common shares, $137,000 and $147,000 of which were charged against earnings. See Note 12 for information related to restricted common shares under the 2008 Plan.

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2012			2011			2012			2011
(in thousands, except per share data)
Numerator:
Net income	$	172		$	675		$	1,494		$	683
Less: Net income attributable to noncontrolling interests	(9		)	(97		)	(99		)	(122		)
Distributions paid on unvested restricted shares	(5		)	(4		)	(11		)	(13		)
Undistributed earnings attributable to unvested restricted shares	—			—			—			—
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares	$	158		$	574		$	1,384		$	548
Denominator:
Weighted average number of common shares - basic	13,842			10,797			12,409			8,285
Effect of dilutive securities:
Unvested restricted shares	119			12			117			15
Weighted average number of common shares - dilutive	13,961			10,809			12,526			8,300
Earnings Per Share:
Basic:
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares	$	0.01		$	0.05		$	0.11		$	0.07
Diluted:
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares	$	0.01		$	0.05		$	0.11		$	0.07

12

WHITESTONE REIT AND SUBSIDIARIES

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

September 30, 2012

(Unaudited)

8. INCOME TAXES

Federal income taxes are not provided because we intend to continue to and believe we qualify as a REIT under the provisions of the Internal Revenue Code (the "Code") and because we have distributed and intend to continue to distribute all of our taxable income to our shareholders.  Our shareholders include their proportionate taxable income in their individual tax returns.  As a REIT, we must distribute at least 90% of our real estate investment trust taxable income to our shareholders and meet certain income sources and investment restriction requirements.  In addition, REITs are subject to a number of organizational and operational requirements.  If we fail to qualify as a REIT in any taxable year, we will be subject to federal income tax (including any applicable alternative minimum tax) on our taxable income at regular corporate tax rates.

During 2010, we discovered that we may have inadvertently violated the “5% asset test,” as set forth in Section 856(c)(4)(B)(iii)(I) of the Code, for the quarter ended March 31, 2009 as a result of utilizing a certain cash management arrangement with a commercial bank. If our investment in a commercial paper investment sweep account through such cash management agreement is not treated as cash, and is instead treated as a security of a single issuer for purposes of the “5% asset test,” then we failed the “5% asset test” for the first quarter of our 2009 taxable year. We believe, however, that if we failed the “5% asset test,” our failure would be considered due to reasonable cause and not willful neglect and, therefore, we would not be disqualified as a REIT for our 2009 taxable year. We would be, however, subject to certain reporting requirements and a tax equal to the greater of $50,000 or 35% of the net income from the commercial paper investment account during the period in which we failed to satisfy the “5% asset test.” The amount of such tax is $50,000, and we paid such tax on April 27, 2010.     

If the IRS were to assert that we failed the “5% asset test” for the first quarter of our 2009 taxable year and that such failure was not due to reasonable cause, and the courts were to sustain that position, our status as a REIT would terminate as of December 31, 2008. We would not be eligible to again elect REIT status until our 2014 taxable year. Consequently, we would be subject to federal income tax on our taxable income at regular corporate rates without the benefit of the dividends-paid deduction, and our cash available for distributions to shareholders would be reduced.

Taxable income differs from net income for financial reporting purposes principally due to differences in the timing of recognition of interest, real estate taxes, depreciation and rental revenue. 

We are subject to the Texas Margin Tax, which is computed by applying the applicable tax rate (1% for us) to the profit margin, which generally will be determined for us as total revenue less a 30% standard deduction.  Although House Bill 3 states that the Texas Margin Tax is not an income tax, SFAS No. 109, “Accounting for Income Taxes” (“SFAS No. 109”) which is codified in FASB ASC 740, "Income Taxes" (“ASC 740”) applies to the Texas Margin Tax.  For the three months ended September 30, 2012 and 2011, we recognized $61,000 and $54,000 in margin tax provision, respectively, and for the nine months ended September 30, 2012 and 2011, we recognized $184,000 and $164,000, respectively.

9.  RELATED PARTY TRANSACTIONS

Executive Relocation. On July 9, 2010, upon the unanimous recommendation of our Compensation Committee of our board of trustees, we entered into an arrangement with James C. Mastandrea, our Chairman, President and Chief Executive Officer, with respect to the disposition of his residence in Cleveland, Ohio. Mr. Mastandrea listed the residence in the second half of 2007 and has had no offers. In the meantime, Mr. Mastandrea has continued to pay for security, taxes, insurance and maintenance expenses related to the residence. In May 2010, we engaged a professional relocation firm to market the home and assist in moving the Mastandrea family to Houston. Since the engagement of the relocation firm, no offers on the home have been received. On August 6, 2012, upon the unanimous recommendation of our Compensation Committee to our board of trustees, the arrangement with Mr. Mastandrea with respect to the disposition of his residence in Cleveland, Ohio was amended. The following summarizes the amended arrangement:

• Reimbursement of Mr. Mastandrea of the amount, if any, by which the sales price for the sale of the residence is less than $2,450,000 (the “Sales Price Shortfall”) upon sale of the residence (the “Shortfall Reimbursement”);

• Payment to Mr. Mastandrea of an amount equal to the amount of any Shortfall Reimbursement divided by the net difference of one (1) minus the maximum U.S. federal income tax rate in effect at the time of the sale of the residence, less the Shortfall Reimbursement (the “Tax Payment”);

13

WHITESTONE REIT AND SUBSIDIARIES

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

September 30, 2012

(Unaudited)

• Payment of the sum of the Shortfall Reimbursement and Tax Payment (the “Lump Sum Payment”) as follows:

(1) Cash within five (5) business days after the sale of the residence (the “Cash Payment”); and (2) Company common shares, with the number of common shares being equal to the Lump Sum Payment, minus the Cash Payment, divided by the last sale price of the common shares on the New York Stock Exchange on the day of the sale of the residence, with the proportion of the Lump Sum Payment to be paid in cash and common shares being determined upon agreement between Mr. Mastandrea and the Compensation Committee at the time of the sale of the residence;

• Payment of housing expenses in Houston, Texas for a period of one (1) year following the sale of the residence; and

• Payment of out of pocket moving costs including packing, temporary storage, transportation and moving supplies.

10.  EQUITY

Reclassification of Common Shares

On June 27, 2012, we filed with the State Department of Assessments and Taxation of Maryland amendments to our declaration of trust that (i) reclassified each issued and unissued Class A common share of beneficial interest, par value $0.001 per share (the "Class A common shares") into one Class B common share of beneficial interest, par value $0.001 per share (the "Class B common shares") and (ii) changed the designation of all of the Class B common shares to “common shares.” The amendment setting forth the reclassification of the Class A common shares into Class B common shares was approved by our shareholders at the 2012 annual meeting of shareholders held on May 22, 2012. The amendment approving the redesignation of the Class B common shares to common shares was approved by our board of trustees and did not require shareholder approval.

Common Shares

Following the reclassification of our common shares on June 27, 2012, as described above, under our declaration of trust, as amended, we have authority to issue up to 400,000,000 common shares of beneficial interest, $0.001 par value per share, and up to 50,000,000 preferred shares of beneficial interest, $0.001 par value per share.

Equity Offering

On August 28, 2012, we completed the sale of 4,830,000 common shares, $0.001 par value per share, including 630,000 common shares pursuant to the exercise of the underwriters' over-allotment option, at a price to the public of $12.80 per share. Total net proceeds from the offering, including over-allotment shares, and after deducting the underwriting discount and offering expenses, were approximately $58.7 million, which we intend to use for general corporate purposes, including property acquisitions, debt repayment, capital expenditures, the expansion, redevelopment and/or re-tenanting of properties in our portfolio, working capital and other general purposes.

Operating Partnership Units

Substantially all of our business is conducted through our Operating Partnership.  We are the sole general partner of the Operating Partnership.  As of September 30, 2012, we owned a 95.5% interest in the Operating Partnership.

Limited partners in the Operating Partnership holding OP units have the right to convert their OP units into cash or, at our option, common shares at a ratio of one OP unit for one common share.  Distributions to OP unit holders are paid at the same rate per unit as distributions per share to Whitestone common shares.  As of September 30, 2012 and December 31, 2011, there were 17,504,987 and 12,677,969 OP units outstanding, respectively.  We owned 16,718,796 and 11,317,042 OP units as of September 30, 2012 and December 31, 2011, respectively. The balance of the OP units is owned by third parties, including certain of our trustees.  Our weighted-average share ownership in the Operating Partnership was approximately 94.6% and 85.7% for the three months ended September 30, 2012 and 2011, respectively, and 93.4% and 82.2% for the nine months ended September 30, 2012 and September 30, 2011, respectively.

14

WHITESTONE REIT AND SUBSIDIARIES

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

September 30, 2012

(Unaudited)

Distributions

The following table summarizes the cash distributions paid or payable to holders of common shares and to holders of noncontrolling OP units during each quarter during 2011 and the nine months ended September 30, 2012 (in thousands, except per share/unit data):

	Common Shares (1)				Noncontrolling OP Unit Holders				Total
Quarter Paid	Distributions Per Common Share		Total Amount Paid		Distributions Per OP Unit		Total Amount Paid		Total Amount Paid
2012
Third Quarter	$	0.2850	$	3,859	$	0.2850	$	224	$	4,083
Second Quarter	0.2850		3,362		0.2850		258		3,620
First Quarter	0.2850		3,322		0.2850		301		3,623
Total	$	0.8550	$	10,543	$	0.8550	$	783	$	11,326
2011
Fourth Quarter	$	0.2850	$	3,193	$	0.2850	$	430	$	3,623
Third Quarter	0.2850		3,115		0.2850		514		3,629
Second Quarter	0.2850		2,121		0.2850		515		2,636
First Quarter	0.2850		1,616		0.2850		515		2,131
Total	$	1.1400	$	10,045	$	1.1400	$	1,974	$	12,019

⁽¹⁾  Effective June 27, 2012, each outstanding Class A common share was reclassified into one Class B common share, and the Class B common shares were redesignated as "common shares."

New York Stock Exchange Listing

On June 29, 2012, we transferred the listing of our common shares to the New York Stock Exchange under our existing ticker symbol "WSR." As a result of the transfer, we voluntarily delisted our common shares from the NYSE MKT LLC (“NYSE MKT”) effective June 28, 2012.

Exchange Offers

On September 2, 2011, we commenced an offer to exchange Class B common shares on a one-for-one basis for (i) up to 867,789 outstanding Class A common shares; and (ii) up to 453,642 outstanding OP units (the “First Exchange Offer”). The First Exchange Offer expired on October 3, 2011, and 867,789 Class A common shares and 453,642 OP units were accepted for exchange.

On December 9, 2011, we commenced a second offer to exchange Class B common shares on a one-for-one basis for (i) up to 867,789 outstanding Class A common shares; and (ii) up to 453,642 outstanding OP units (the “Second Exchange Offer”). The Second Exchange Offer expired on January 11, 2012, and 867,789 Class A common shares and 453,580 OP units were accepted for exchange.

On May 10, 2012, we commenced a third offer to exchange Class B common shares on a one-for-one basis for (i) up to 867,789 outstanding Class A common shares; and (ii) up to 453,642 outstanding OP units (the “Third Exchange Offer”). The Third Exchange Offer expired on June 8, 2012, and 426,986 Class A common shares and 121,156 OP units were accepted for exchange.

15

WHITESTONE REIT AND SUBSIDIARIES

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

September 30, 2012

(Unaudited)

See Note 16 for a description of our registration of additional common shares subsequent to the quarter ending September 30, 2012.

11.  COMMITMENTS AND CONTINGENCIES

We are subject to various legal proceedings and claims that arise in the ordinary course of business.  These matters are generally covered by insurance.  While the resolution of these matters cannot be predicted with certainty, management believes the final outcome of such matters will not have a material adverse effect on our consolidated financial statements.

Executive Relocation.  On July 9, 2010, upon the unanimous recommendation of our Compensation Committee of our board of trustees, we entered into an arrangement with Mr. Mastandrea with respect to the disposition of his residence in Cleveland, Ohio. Mr. Mastandrea listed the residence in the second half of 2007 and has had no offers. In the meantime, Mr. Mastandrea has continued to pay for security, taxes, insurance and maintenance expenses related to the residence. In May 2010, we engaged a professional relocation firm to market the home and assist in moving the Mastandrea family to Houston. Since the engagement of the relocation firm, no offers on the home have been received. On August 6, 2012, upon the unanimous recommendation of our Compensation Committee to our board of trustees, the arrangement with Mr. Mastandrea with respect to the disposition of his residence in Cleveland, Ohio was amended. See Note 9 above for a description of the amendment to the arrangement with Mr. Mastandrea.

12.  INCENTIVE SHARE PLAN

On July 29, 2008, our shareholders approved the 2008 Plan. On December 22, 2010, our board of trustees amended the 2008 Plan to allow for awards in or related to Class B common shares pursuant to the 2008 Plan. On June 27, 2012, our Class B common shares were redesignated as "common shares." The 2008 Plan, as amended, provides that awards may be made with respect to common shares of Whitestone or OP units, which may be converted into cash or, at our option, common shares of Whitestone. The maximum aggregate number of common shares that may be issued under the 2008 Plan is increased upon each issuance of common shares by Whitestone so that at any time the maximum number of shares that may be issued under the 2008 Plan shall equal 12.5% of the aggregate number of common shares of Whitestone and OP units issued and outstanding (other than shares and/or OP units issued to or held by Whitestone).

The Compensation Committee of our board of trustees administers the 2008 Plan, except with respect to awards to non-employee trustees, for which the 2008 Plan is administered by our board of trustees.  The Compensation Committee is authorized to grant share options, including both incentive share options and non-qualified share options, as well as share appreciation rights, either with or without a related option. The Compensation Committee is also authorized to grant restricted common shares, restricted common share units, performance awards and other share-based awards. 

A summary of the share-based incentive plan activity as of and for the nine months ended September 30, 2012 is as follows:

	Shares		Weighted-Average Grant Date Fair Value (1)
Non-vested at January 1, 2012	504,023		$	12.48
Granted	99,700		13.03
Vested	(15,041	)	13.84
Forfeited	(46,302	)	12.62
Non-vested as of September 30, 2012	542,380		12.53
Available for grant at September 30, 2012	1,882,240

⁽¹⁾  The fair value of the common shares granted before trading of the common shares commenced on the NYSE MKT on August 26, 2010 were determined based on observable market transactions occurring near the date of the grants. The fair value of the common shares granted subsequent to August 26, 2010 was determined based on the fair value at the date of grant.

16

WHITESTONE REIT AND SUBSIDIARIES

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

September 30, 2012

(Unaudited)

A summary of our non-vested and vested shares activity for the nine months ended September 30, 2012 and years ended December 31, 2011, 2010 and 2009 is presented below:

	Shares Granted			Shares Vested
	Non-Vested Shares Issued	Weighted-Average Grant-Date Fair Value		Vested Shares		Total Vest-Date Fair Value
						(in thousands)
Nine months ended September 30, 2012	99,700	$	13.03	(15,041	)	$	208
Year ended December 31, 2011	—	—		(5,169	)	80
Year ended December 31, 2010	31,858	14.09		(55,699	)	695
Year ended December 31, 2009	600,731	12.37		—		—

Total compensation recognized in earnings for share-based payments was $118,000 and $78,000 for the three months ended September 30, 2012 and 2011, respectively, and $384,000 and $233,000 for the nine months ended September 30, 2012 and 2011, respectively. With the acquisitions during the three months ended September 30, 2012 (see Note 15), we expect additional performance-based shares to vest due to the achievement of certain Company-wide performance goals. As a result, at September 30, 2012, there was approximately $1,376,000 in unrecognized compensation cost related to outstanding non-vested performance-based shares, which is expected to vest over a period of fifteen months and approximately $90,000 in unrecognized compensation cost related to outstanding non-vested time-based shares, which are expected to be recognized over a weighted-average period of approximately one year. The fair value of the shares granted during the nine months ended September 30, 2012 was determined using quoted prices available on the date of grant.

13. GRANTS TO TRUSTEES

On May 22, 2012, each of our four independent trustees was granted 1,500 common shares, which vested immediately. The 6,000 common shares granted to our four independent trustees had a grant date fair value of $13.03 per share. On June 25, 2012, two of our independent trustees elected to receive a total of 915 common shares with a grant date fair value of $13.39 in lieu of cash for board fees. The fair value of the shares granted during the nine months ended September 30, 2012 was determined using quoted prices available on the date of grant.

14. SEGMENT INFORMATION

Historically, our management has not differentiated results of operations by property type or location and, therefore, does not present segment information.

15. REAL ESTATE

Property Acquisitions. On September 21, 2012, we acquired Village Square at Dana Park, a property that meets our Community Centered Property strategy, for approximately $46.5 million in cash and net prorations. The 310,979 square foot center was 71% leased at the time of purchase and is located in the Mesa submarket of Phoenix, Arizona. In the same purchase, we also acquired an adjacent development parcel of 4.7 acres for approximately $4.0 million in cash.

On September 21, 2012, we acquired Fountain Square, a property that meets our Community Centered Property strategy, for approximately $15.4 million in cash and net prorations. The 118,209 square foot property was 76% leased at the time of purchase and is located in Scottsdale, Arizona.

On August 8, 2012, we acquired Paradise Plaza, a property that meets our Community Centered Property strategy, for approximately $16.3 million, including the assumption of a $9.2 million non-recourse loan, and cash of $7.1 million. Paradise Plaza was 100% occupied at the time of purchase with 125,898 of square feet of gross leasable area, and is located in Paradise Valley, Arizona, a suburb of Phoenix.

17

WHITESTONE REIT AND SUBSIDIARIES

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

September 30, 2012

(Unaudited)

On May 29, 2012, we acquired the Shops at Pinnacle Peak, a property that meets our Community Centered Property strategy, for approximately $6.4 million in cash and net prorations. The 41,530 square foot center was 76% leased at the time of purchase and is located in North Scottsdale, Arizona.     

On December 28, 2011, we acquired the Shops at Starwood, a property that meets our Community Centered Property strategy, for approximately $15.7 million in cash and net prorations. The Class A center, which was 98% occupied at the time of purchase, contains 55,385 square feet of gross leasable area, and is located in Frisco, Texas, a northern suburb of Dallas. The Shops at Starwood has a complementary tenant mix of restaurants, fashion boutiques, salons and second-level office space.

On December 28, 2011, we acquired Starwood Phase III, a 2.73 acre parcel of undeveloped land adjacent to the Shops at Starwood for approximately $1.9 million, including a non-recourse loan we assumed for $1.4 million that is secured by the land, and cash of $0.5 million. The Phase III development site fronts the Dallas North Tollway within the Tollway Overlay District, which grants the highest allowed density of any zoning district.

On December 28, 2011, we acquired Pinnacle of Scottsdale Phase II, or Pinnacle Phase II, a 4.45 acre parcel of developed land adjacent to Pinnacle, described below, for approximately $1.0 million in cash and net prorations. Pinnacle Phase II has approximately 400 linear feet of frontage on Scottsdale Road, in North Scottsdale, Arizona and the potential for additional retail and office development.

On December 22, 2011, we acquired Phase I of Pinnacle of Scottsdale, or Pinnacle, a property that meets our Community Centered Property strategy, for approximately $28.8 million, including a non-recourse loan we assumed for $14.1 million that is secured by the property, and cash of $14.7 million. Pinnacle is a 100% occupied Class A Community Center with 113,108 square feet of gross leasable area in North Scottsdale, Arizona.

On August 16, 2011, we acquired Ahwatukee Plaza Shopping Center, a property that meets our Community Centered Property strategy, for approximately $9.3 million in cash and net prorations. The center contains 72,650 square feet of gross leasable area, located in the Ahwatukee Foothills neighborhood in south Phoenix, Arizona.

On August 8, 2011, we acquired Terravita Marketplace, a property that meets our Community Centered Property strategy, containing 102,733 square feet of gross leasable area, including of 51,434 square feet leased to two tenants pursuant to ground leases, located in Scottsdale, Arizona for approximately $16.1 million in cash and net prorations. Terravita Marketplace is adjacent to the gated golf course residential community of Terravita, which was developed by DelWebb Corporation/Pulte, with homes ranging in price from $250,000 to $1 million.

On June 28, 2011, we acquired Gilbert Tuscany Village, a property that meets our Community Centered Property strategy, containing 49,415 square feet of gross leasable area, located in Gilbert, Arizona for approximately $5.0 million in cash and net prorations. Gilbert Tuscany Village is surrounded by densely populated, high-end residential developments and is located approximately one mile from Banner Gateway Medical Center, a 60-acre medical complex that is partnering with MD Anderson to add a new 120,000 square foot cancer outpatient center.

On April 13, 2011, we acquired Desert Canyon Shopping Center, a property that meets our Community Centered Property strategy, for approximately $3.65 million in cash and net prorations. The center contains 62,533 square feet of gross leasable area, including 12,960 square feet leased to two tenants pursuant to ground leases, and is located in Mcdowell Mountain Ranch in northern Scottsdale, Arizona. Situated at a prime intersection at East McDowell Mountain Ranch Road and 105^th Street, Desert Canyon is the nearest retail and office space to McDowell Mountain Elementary and Junior High Schools. Located adjacent to the Sonora Mountain Desert Preserve, a lighted trail and jogging path wind directly into the Desert Canyon site and provide access from the surrounding upscale residential neighborhoods.

Property Dispositions. On July 22, 2011, we sold Greens Road Plaza, located in Houston, Texas, for $1.8 million in cash and net prorations. We have reinvested the proceeds from the sale of the 20,607 square foot property located in northeast Houston in Community Centered Properties in our target markets. As a result of the transaction, we recorded a gain on sale of property of $0.4 million for the year ended December 31, 2011.

18

WHITESTONE REIT AND SUBSIDIARIES

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

September 30, 2012

(Unaudited)

16. SUBSEQUENT EVENTS

On October 9, 2012, we filed a prospectus supplement, relating to our effective universal shelf registration statement on Form S-3, covering the issuance of up to 786,191 of our common shares, par value $0.001 per share, to certain holders of OP units in the Operating Partnership. The OP units may be issued to the extent that OP unit holders tender their OP units for redemption in accordance with the terms of the limited partnership agreement of the Operating Partnership and we elect, at our sole discretion, to issue common shares to the tendering OP unit holders.

19

Item 2.  Management's Discussion and Analysis of Financial Condition and Results of Operations.

You should read the following discussion of our financial condition and results of operations in conjunction with our unaudited consolidated financial statements and the notes thereto included in this Quarterly Report on Form 10-Q (the “Report”), and the consolidated financial statements and the notes thereto and "Management's Discussion and Analysis of Financial Condition and Results of Operations" contained in our Annual Report on Form 10-K for the year ended December 31, 2011.  For more detailed information regarding the basis of presentation for the following information, you should read the notes to the unaudited consolidated financial statements included in this Report.

This Report contains forward-looking statements within the meaning of the federal securities laws, including discussion and analysis of our financial condition, anticipated capital expenditures required to complete projects, amounts of anticipated cash distributions to our shareholders in the future and other matters.  These forward-looking statements are not historical facts but are the intent, belief or current expectations of our management based on its knowledge and understanding of our business and industry.  Forward-looking statements are typically identified by the use of terms such as “may,” “will,” “should,” “potential,” “predicts,” “anticipates,” “expects,” “intends,” “plans,” “believes,” “seeks,” “estimates” or the negative of such terms and variations of these words and similar expressions, although not all forward-looking statements include these words.  These statements are not guarantees of future performance and are subject to risks, uncertainties and other factors, some of which are beyond our control, are difficult to predict and could cause actual results to differ materially from those expressed or forecasted in the forward-looking statements.

Forward-looking statements that were true at the time made may ultimately prove to be incorrect or false.  You are cautioned not to place undue reliance on forward-looking statements, which reflect our management's view only as of the date of this Report.  We undertake no obligation to update or revise forward-looking statements to reflect changed assumptions, the occurrence of unanticipated events or changes to future operating results.  Factors that could cause actual results to differ materially from any forward-looking statements made in this Report include:

• the imposition of federal taxes if we fail to qualify as a REIT in any taxable year or forego an opportunity to ensure REIT status;

• uncertainties related to the national economy, the real estate industry in general and in our specific markets;

• legislative or regulatory changes, including changes to laws governing REITs;

• adverse economic or real estate developments in Texas, Arizona or Illinois;

• increases in interest rates and operating costs;

• inability to obtain necessary outside financing;

• decreases in rental rates or increases in vacancy rates;

• litigation risks;

• lease-up risks;

• inability to renew tenants or obtain new tenants upon the expiration of existing leases;

• inability to generate sufficient cash flows due to market conditions, competition, uninsured losses, changes in tax or other applicable laws; and

• the potential need to fund tenant improvements or other capital expenditures out of operating cash flow.

The forward-looking statements should be read in light of these factors and the factors identified in the “Risk Factors” sections of our Annual Report on Form 10-K for the year ended December 31, 2011, as previously filed with the Securities and Exchange Commission ("SEC") and of this Report below.

Overview

We are a fully integrated real estate company that owns and operates Community Centered Properties in culturally diverse markets in major metropolitan areas.  We define Community Centered Properties as visibly located properties in established or developing culturally diverse neighborhoods in our target markets.  Founded in 1998, we are internally managed with a portfolio of commercial properties in Texas, Arizona and Illinois.

In October 2006, our current management team joined the Company and adopted a strategic plan to acquire, redevelop, own and operate Community Centered Properties.  We market, lease and manage our centers to match tenants with the shared needs of the surrounding neighborhood.  Those needs may include specialty retail, grocery, restaurants and medical, educational and financial services.  Our goal is for each property to become a Whitestone-branded business center or retail community that serves a neighboring five-mile radius around our property.  We employ and develop a diverse group of associates who understand the needs of our multicultural communities and tenants.

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As of September 30, 2012, we owned and operated 50 commercial properties consisting of:

Operating Portfolio

• twenty-four retail centers containing approximately 1.8 million square feet of gross leasable area and having a total carrying value (net of accumulated depreciation) of $170.2 million;

• seven office centers containing approximately 0.6 million square feet of gross leasable area and having a total carrying value (net of accumulated depreciation) of $43.3 million; and

• eleven office/flex centers containing approximately 1.2 million square feet of gross leasable area and having a total carrying value (net of accumulated depreciation) of $40.1 million.

Redevelopment, New Acquisitions Portfolio

• five retail Community Centered Properties containing approximately 0.6 million square feet of gross leasable area and having a total carrying value (net of accumulated depreciation) of $77.2 million; and

• three parcels of land held for future development having a total carrying value of $7.1 million.

As of September 30, 2012, we had a total of 1,051 tenants.  We have a diversified tenant base with our largest tenant comprising only 1.2% of our annualized rental revenues for the nine months ended September 30, 2012.  Lease terms for our properties range from less than one year for smaller tenants to over 15 years for larger tenants.  Our leases generally include minimum monthly lease payments and tenant reimbursements for payment of taxes, insurance and maintenance.  We completed 245 new and renewal leases during the nine months ended September 30, 2012, totaling approximately 493,000 square feet and approximately $24.0 million in total lease value.  This compares to 224 new and renewal leases totaling approximately 636,000 square feet and approximately $25.1 million in total lease value during the same period in 2011.

We employed 59 full-time employees as of September 30, 2012.  As an internally managed REIT, we bear our own expenses of operations, including the salaries, benefits and other compensation of our employees, office expenses, legal, accounting and investor relations expenses and other overhead costs.

How We Derive Our Revenue

Substantially all of our revenue is derived from rents received from leases at our properties. We had rental income and tenant reimbursements of approximately $11.6 million and $8.8 million for the three months ended September 30, 2012 and 2011, respectively, and $33.0 million and $24.9 million for the nine months ended September 30, 2012 and 2011, respectively.

Known Trends in Our Operations; Outlook for Future Results

Rental Income

We expect our rental income to increase year-over-year due to the addition of properties. The amount of net rental income generated by our properties depends principally on our ability to maintain the occupancy rates of currently leased space and to lease currently available space, newly acquired properties with vacant space, and space available from unscheduled lease terminations. The amount of rental income we generate also depends on our ability to maintain or increase rental rates in our submarkets. Negative trends in one or more of these factors could adversely affect our rental income in future periods. We expect modest continued improvement in the economic conditions in our markets to provide slight increases in occupancy at certain of our properties.

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Scheduled Lease Expirations

We tend to lease space to smaller businesses that desire shorter term leases. As of September 30, 2012, approximately 29% of our gross leasable area was subject to leases that expire prior to December 31, 2013.  Over the last two years, we have renewed leases covering approximately 75% of our square footage as a result of lease maturities. We routinely seek to renew leases with our existing tenants prior to their expiration and typically begin discussions with tenants as early as 18 months prior to the expiration date of the existing lease.  In the markets in which we operate, we obtain and analyze market rental rates by reviewing third-party publications, which provide market and submarket rental rate data, and by inquiring of property owners and property management companies as to rental rates being quoted at properties located in close proximity to our properties that we believe display similar physical attributes as our properties. We utilize this data to negotiate leases with new tenants and renew leases with our existing tenants at rates we believe to be competitive in the markets for our individual properties. Due to the short term nature of our leases, and based upon our analysis of market rental rates, we believe that, in the aggregate, our current leases are at market rates.  During the year ended December 31, 2011, our revenue rate per square foot for new and renewal comparable spaces increased 1% when compared to the expiring revenue rate per square foot for the previous leases in the same spaces.  As such, we expect to renew our leases expiring in the near term at rates which are at, or near, their current rates. Market conditions, including new supply of properties, and macroeconomic conditions in our markets and nationally affecting tenant income, such as employment levels, business conditions, interest rates, tax rates, fuel and energy costs and other matters, could adversely impact our renewal rate and/or the rental rates we are able to negotiate. We continue to monitor our tenants' operating performances as well as overall economic trends to evaluate any future negative impact on our renewal rates and rental rates, which could adversely affect our cash flow and ability to pay dividends to our shareholders.

Acquisitions

We expect to actively seek acquisitions in the foreseeable future. We believe that over the next few years we will continue to have excellent opportunities to acquire quality properties at historically attractive prices. We have extensive relationships with community banks, attorneys, title companies and others in the real estate industry, which we believe will enable us to take advantage of these market opportunities and maintain an active acquisition pipeline.

Property Acquisitions

We seek to acquire commercial properties in high-growth markets. Our acquisition targets are properties that fit our Community Centered Properties strategy.  We define Community Centered Properties as visibly located properties in established or developing, culturally diverse neighborhoods in our target markets, primarily in and around Phoenix, Chicago, Dallas, San Antonio and Houston.  We market, lease and manage our centers to match tenants with the shared needs of the surrounding neighborhood.  Those needs may include specialty retail, grocery, restaurants, medical, educational and financial services.  Our goal is for each property to become a Whitestone-branded business center or retail community that serves a neighboring five-mile radius around our property.

On September 21, 2012, we acquired Village Square at Dana Park, a property that meets our Community Centered Property strategy, for approximately $46.5 million in cash and net prorations. The 310,979 square foot center was 71% leased at the time of purchase and is located in the Mesa submarket of Phoenix, Arizona. In the same purchase, we also acquired an adjacent development parcel of 4.7 acres for approximately $4.0 million in cash.

On September 21, 2012, we acquired Fountain Square, a property that meets our Community Centered Property strategy, for approximately $15.4 million in cash and net prorations. The 118,209 square foot property was 76% leased at the time of purchase and is located in Scottsdale, Arizona.

On August 8, 2012, we acquired Paradise Plaza, a property that meets our Community Centered Property strategy, for approximately $16.3 million, including the assumption of a $9.2 million non-recourse loan, and cash of $7.1 million. Paradise Plaza was 100% occupied at the time of purchase with 125,898 of square feet of gross leasable area, and is located in Paradise Valley, Arizona, a suburb of Phoenix.

On May 29, 2012, we acquired the Shops at Pinnacle Peak, a property that meets our Community Centered Property strategy, for approximately $6.4 million in cash and net prorations. The 41,530 square foot center was 76% leased at the time of purchase and is located in North Scottsdale, Arizona.    

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On December 28, 2011, we acquired the Shops at Starwood, a property that meets our Community Centered Property strategy, for approximately $15.7 million in cash and net prorations. The Class A center, which was 98% occupied at the time of purchase, contains 55,385 square feet of gross leasable area and is located in Frisco, Texas, a northern suburb of Dallas. The Shops at Starwood has a complementary tenant mix of restaurants, fashion boutiques, salons and second-level office space.

On December 28, 2011, we acquired Starwood Phase III, a 2.73 acre parcel of undeveloped land adjacent to the Shops at Starwood for approximately $1.9 million, including a non-recourse loan we assumed for $1.4 million that is secured by the land, and cash of $0.5 million. The Phase III development site fronts the Dallas North Tollway within the Tollway Overlay District, which grants the highest allowed density of any zoning district.

On December 28, 2011, we acquired Pinnacle of Scottsdale Phase II, or Pinnacle Phase II, a 4.45 acre parcel of developed land adjacent to Pinnacle, described below, for approximately $1.0 million in cash and net prorations. Pinnacle Phase II has approximately 400 linear feet of frontage on Scottsdale Road, in North Scottsdale, Arizona and the potential for additional retail and office development.

On December 22, 2011, we acquired Phase I of Pinnacle of Scottsdale, or Pinnacle, a property that meets our Community Centered Property strategy, for approximately $28.8 million, including a non-recourse loan we assumed for $14.1 million that is secured by the property, and cash of $14.7 million. Pinnacle is a 100% occupied Class A Community Center with 113,108 square feet of gross leasable area in North Scottsdale, Arizona.

On August 16, 2011, we acquired Ahwatukee Plaza Shopping Center, a property that meets our Community Centered Property strategy, for approximately $9.3 million in cash and net prorations. The center contains 72,650 square feet of gross leasable area, located in the Ahwatukee Foothills neighborhood in south Phoenix, Arizona.

On August 8, 2011, we acquired Terravita Marketplace, a property that meets our Community Centered Property strategy, containing 102,733 square feet of gross leasable area, including 51,434 square feet leased to two tenants pursuant to ground leases, for approximately $16.1 million in cash and net prorations. Terravita Marketplace is located in North Scottsdale, Arizona and adjacent to the gated golf course residential community of Terravita, which was developed by DelWebb Corporation/Pulte, with homes ranging in price from $250,000 to $1 million.

On June 28, 2011, we acquired Gilbert Tuscany Village, a property that meets our Community Centered Property strategy, containing 49,415 square feet of gross leasable area, located in Gilbert, Arizona for approximately $5.0 million in cash and net prorations. Gilbert Tuscany Village is surrounded by densely populated, high-end residential developments and is located approximately one mile from Banner Gateway Medical Center, a 60-acre medical complex that is partnering with MD Anderson to add a new 120,000 square foot cancer outpatient center.

On April 13, 2011, we acquired Desert Canyon Shopping Center, a property that meets our Community Centered Property strategy, for approximately $3.65 million in cash and net prorations. The center contains 62,533 square feet of gross leasable area, including 12,960 square feet leased to two tenants pursuant to ground leases, and is located in Mcdowell Mountain Ranch in northern Scottsdale, Arizona. Situated at a prime intersection at East McDowell Mountain Ranch Road and 105^th Street, Desert Canyon is the nearest retail and office space to McDowell Mountain Elementary and Junior High Schools. Located adjacent to the Sonora Mountain Desert Preserve, a lighted trail and jogging path wind directly into the Desert Canyon site and provide access from the surrounding upscale residential neighborhoods.

Property Dispositions

On July 22, 2011, we sold Greens Road Plaza, located in Houston, Texas, for $1.8 million in cash and net prorations. We have reinvested the proceeds from the sale of the 20,607 square foot property located in northeast Houston in Community Centered Properties in our target markets. As a result of the transaction, we recorded a gain on sale of property of $0.4 million for the year ended December 31, 2011.

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Critical Accounting Policies

In preparing the consolidated financial statements, we have made estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenue and expenses during the reported periods. Actual results may differ from these estimates.  A summary of our critical accounting policies is included in our Annual Report on Form 10-K for the year ended December 31, 2011, under "Management's Discussion and Analysis of Financial Condition and Results of Operations."There have been no significant changes to these policies during the nine months ended September 30, 2012.  For disclosure regarding recent accounting pronouncements and the anticipated impact they will have on our operations, please refer to Note 2 in our Annual Report on Form 10-K for the year ended December 31, 2011.

Results of Operations

Comparison of the Three Months Ended September 30, 2012 and 2011

The following table provides a summary comparison of our results of operations for the three months ended September 30, 2012 and 2011 (dollars in thousands, except per share and OP unit amounts):

	Three Months Ended September 30,
	2012			2011
Number of properties owned and operated	50			41
Aggregate gross leasable area (sq. ft.)(1)	4,195,924			3,428,844
Ending occupancy rate - operating portfolio(2)	87		%	86		%
Ending occupancy rate - all properties	85		%	84		%
Total property revenues	$	11,618		$	8,791
Total property expenses	4,598			3,638
Total other expenses	6,694			4,822
Provision for income taxes	77			54
Gain (loss) on disposal of assets	77			(1		)
Income before gain on sale of property	172			278
Gain on sale of property	—			397
Net income	172			675
Less:  Net income attributable to noncontrolling interests	9			97
Net income attributable to Whitestone REIT	$	163		$	578
Funds from operations (3)	$	2,906		$	2,210
Property net operating income (4)	7,020			5,153
Distributions paid on common shares and OP units	4,083			3,629
Distributions per common share and OP unit	$	0.2850		$	0.2850
Distributions paid as a % of funds from operations	141		%	164		%

⁽¹⁾   During the first quarter of 2012, we concluded that approximately 2,029 square feet at our Lion Square location was no longer leasable, therefore, such area is no longer included in the gross leasable area as of March 31, 2012.

⁽²⁾   Excludes (i) new acquisitions, through the earlier of attainment of 90% occupancy or 18 months of ownership, and (ii) properties that are undergoing significant redevelopment or re-tenanting.

⁽³⁾   For a reconciliation of funds from operations to net income, see "Funds From Operations" below.

⁽⁴⁾   For a reconciliation of property net operating income to net income, see "Property Net Operating Income" below.

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Property revenues. We had rental income and tenant reimbursements of approximately $11,618,000 for the three months ended September 30, 2012 as compared to $8,791,000 for the three months ended September 30, 2011, an increase of $2,827,000, or 32%. The three months ended September 30, 2012 included $2,458,000 in increased revenues from New Store operations. We define "New Stores" as properties acquired since the beginning of the the period being compared. For purposes of comparing the three months ended September 30, 2012 to the three months ended September 30, 2011, New Stores include properties acquired between July 1, 2011 and September 30, 2012. Same Store revenues increased $369,000 for the three months ended September 30, 2012 as compared to the same period in the prior year. We define "Same Stores" as properties that were owned at the beginning of the period being compared. For purposes of comparing the three months ended September 30, 2012 to the three months ended September 30, 2011, Same Stores include properties owned before July 1, 2011. Same Store average occupancy increased from 81.8% for the three months ended September 30, 2011 to 85.0% for the three months ended September 30, 2012, increasing Same Store revenue $321,000. The Same Store average revenue per leased square foot increased $0.07 for the three months ended September 30, 2012 to $12.72 per leased square foot as compared to the average revenue per leased square foot of $12.65 for the three months ended September 30, 2011, resulting in an increase of Same Store revenues of $48,000.

Property expenses.  Our property expenses were approximately $4,598,000 for the three months ended September 30, 2012 as compared to $3,638,000 for the three months ended September 30, 2011, an increase of $960,000, or 26%.  The primary components of total property expenses are detailed in the table below (in thousands, except percentages):

	Three Months Ended September 30,
	2012		2011		Change		% Change
Real estate taxes	$	1,629	$	1,262	$	367	29	%
Utilities	810		678		132		19	%
Contract services	657		594		63		11	%
Repairs and maintenance	476		396		80		20	%
Bad debt	362		165		197		119	%
Labor and other	664		543		121		22	%
Total property expenses	$	4,598	$	3,638	$	960	26	%

Real estate taxes.  Real estate taxes increased $367,000, or 29%, during the three months ended September 30, 2012 as compared to the same period in 2011. Real estate taxes for New Store properties were approximately $360,000 for the three months ended September 30, 2012. Same Store real estate taxes increased approximately $7,000 during the three months ended September 30, 2012 as compared to the same period in 2011. We actively work to keep our valuations and resulting taxes low because a majority of these taxes are charged to our tenants through triple net leases, and we strive to keep these charges to our tenants as low as possible.

Utilities. Utilities expenses increased $132,000, or 19%, during the three months ended September 30, 2012 as compared to the same period in 2011. Utilities expenses for New Store properties were approximately $99,000 for the three months ended September 30, 2012. Same Store utilities expenses increased approximately $33,000 during the three months ended September 30, 2012 as compared to the same period in 2011. The majority of the Same Store increase was attributable to water and drainage fees charged to our Houston properties by the City of Houston.

Contract services.  Contract services increased $63,000, or 11%, during the three months ended September 30, 2012 as compared to the same period in 2011. The increase in contract services expenses included $77,000 in contract expenses increases for New Store properties for the three months ended September 30, 2012. Same Store contract service expenses decreased approximately $14,000 during the three months ended September 30, 2012 as compared to the same period in 2011.

Repairs and maintenance. Repairs and maintenance expenses increased $80,000, or 20%, during the three months ended September 30, 2012 as compared to the same period in 2011. Repairs and maintenance expenses for the three months ended September 30, 2012 included approximately $150,000 in increases for New Store properties. Same Store repairs and maintenance expenses decreased approximately $70,000 during the three months ended September 30, 2012 as compared to the same period in 2011. The decrease in Same Store repair expenses was primarily attributable to parking lot repairs completed during 2011.

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Bad debt.  Bad debt expenses increased $197,000, or 119%, during the three months ended September 30, 2012 as compared to the same period in 2011. Bad debt expenses for the three months ended September 30, 2012 included approximately $63,000 in increases for New Store properties. Same Store bad debt increased approximately $134,000 during the three months ended September 30, 2012 as compared to the same period in 2011. The Same Store increase in bad debt expenses was primarily attributable to outstanding rent and fees owed by several tenants in our Texas market. We are currently evaluating collection options ranging from downsizing the tenants to possible lockouts. We vigorously pursue past due accounts, but expect collection of rents to continue to be challenging for the foreseeable future.

Labor and other.  Labor and other expenses increased $121,000, or 22%, during the three months ended September 30, 2012 as compared to the same period in 2011. Labor and other expenses for the three months ended September 30, 2012 included approximately $51,000 in increased cost for New Store properties. Same Store labor and other expenses increased approximately $70,000 during the three months ended September 30, 2012 as compared to the same period in 2011. The increase in Same Store labor and other cost was primarily attributable to increased insurance rates and labor allocated for repairs and maintenance and was offset by lower non-recoverable repair costs.

Same Store and New Store net operating income. The components of Same Store, New Store and total property net operating income are detailed in the table below (in thousands):

	Three Months Ended September 30,
	Same Store				New Store				Total
	2012		2011		2012		2011		2012		2011
Property revenues	$	8,789	$	8,420	$	2,829	$	371	$	11,618	$	8,791
Property expenses	3,736		3,575		862		63		4,598		3,638
Property net operating income	$	5,053	$	4,845	$	1,967	$	308	$	7,020	$	5,153

Other expenses.  Our other expenses were $6,694,000 for the three months ended September 30, 2012, as compared to $4,822,000 for the three months ended September 30, 2011, an increase of $1,872,000, or 39%.  The primary components of other expenses are detailed in the table below (in thousands, except percentages):

	Three Months Ended September 30,
	2012			2011			Change		% Change
General and administrative	$	1,888		$	1,495		$	393	26	%
Depreciation and amortization	3,112			2,161			951		44	%
Interest expense	1,815			1,430			385		27	%
Interest, dividend and other investment income	(121		)	(264		)	143		(54	)%
Total other expenses	$	6,694		$	4,822		$	1,872	39	%

General and administrative.  General and administrative expenses increased approximately $393,000, or 26%, for the three months ended September 30, 2012 as compared to the same period in 2011. The increases in general and administrative expenses included increases in legal fees of $187,000, increases in acquisition expenses of $151,000, increases in share-based compensation of $52,000 and $3,000 in other increases. The majority of the increase in legal expense is attributable to a $190,000 settlement we received from litigation with a former tenant regarding damages to our properties during the three months ended September 30, 2011 that did not repeat during the three months ended September 30, 2012. The increase in acquisition expenses is due to acquisition-related costs for our acquisitions of Paradise Plaza, Fountain Square and Village Square at Dana Park during the three months ended September 30, 2012. The increase in share-based compensation is due to expense related to additional employee grants and expenses related to the expected vesting of performance-based shares. As of September 30, 2012, there was approximately $1,380,000 in unrecognized compensation cost related to outstanding non-vested performance-based shares, which is expected to to vest over a period of fifteen months and approximately $90,000 in unrecognized compensation cost related to outstanding non-vested time-based shares, which are expected to be recognized over a weighted-average period of approximately one year.

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Depreciation and amortization.  Depreciation and amortization increased $951,000, or 44%, for the three months ended September 30, 2012 as compared to the same period in 2011. Depreciation for improvements to Same Store properties increased $328,000 for the three months ended September 30, 2012 as compared to the same period in 2011, and amortization of capitalized loan fees increased $233,000. The increase in Same Store depreciation is attributable to redevelopment and re-tenanting investments, most notably at our Windsor and Lion Square locations, and the increase in amortization of capitalized loan fees is the result of fees associated with our Credit Facility (as defined below). Lease commissions and depreciation of corporate assets increased $14,000 for the three months ended September 30, 2012 as compared to the same period in 2011. Depreciation for New Store properties increased $376,000.

Interest expense. Interest expense increased $385,000, or 27%, for the three months ended September 30, 2012 as compared to the same period in 2011. The increase in interest expense is comprised of approximately $715,000 in interest expense resulting from an approximate $51,292,000 increase in our average notes payable balance during the three months ended September 30, 2012 as compared to the same period 2011, offset by a $330,000 decrease in interest expense resulting from a decrease in the effective interest rate from 5.57% to 4.72% during three months ended September 30, 2012 as compared to the same period in 2011.

Interest, dividend and other investment income. Interest, dividend and other investment income decreased $143,000, or 54%, for the three months ended September 30, 2012 as compared to the same period in 2011. The $143,000 decrease is comprised of a $58,000 decrease in dividend income, a $75,000 decrease in gains on sales of available-for-sale marketable securities and a $10,000 decrease in interest income.

Results of Operations

Comparison of the Nine Month Periods Ended September 30, 2012 and 2011

The following table provides a summary comparison of our results of operations for the nine months ended September 30, 2012 and 2011 (dollars in thousands, except per share and OP unit amounts):

	Nine Months Ended September 30,
	2012			2011
Number of properties owned and operated	50			41
Aggregate gross leasable area (sq. ft.)(1)	4,195,924			3,428,844
Ending occupancy rate - operating portfolio(2)	87		%	86		%
Ending occupancy rate - all properties	85		%	84		%
Total property revenues	$	33,031		$	24,947
Total property expenses	12,522			9,718
Total other expenses	18,698			14,761
Provision for income taxes	212			165
Gain (loss) on disposal of assets	105			17
Income before gain on sale of property	1,494			286
Gain on sale of property	—			397
Net income	1,494			683
Less:  Net income attributable to noncontrolling interests	99			122
Net income attributable to Whitestone REIT	$	1,395		$	561
Funds from operations (3)	$	8,759		$	5,913
Property net operating income (4)	20,509			15,229
Distributions paid on common shares and OP units	11,326			8,396
Distributions per common share and OP unit	$	0.8850		$	0.8850
Distributions paid as a % of funds from operations	129		%	142		%

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⁽¹⁾   During the first quarter of 2012, we concluded that approximately 2,029 square feet at our Lion Square location was no longer leasable, therefore such area is no longer included in the gross leasable area as of March 31, 2012.

⁽²⁾   Excludes (i) new acquisitions, through the earlier of attainment of 90% occupancy or 18 months of ownership, and (ii) properties that are undergoing significant redevelopment or re-tenanting.

⁽³⁾   For a reconciliation of funds from operations to net income, see "Funds From Operations" below.

⁽⁴⁾   For a reconciliation of property net operating income to net income, see "Property Net Operating Income" below.

Property revenues. We had rental income and tenant reimbursements of approximately $33,031,000 for the nine months ended September 30, 2012 as compared to $24,947,000 for the nine months ended September 30, 2011, an increase of $8,084,000, or 32%. The nine months ended September 30, 2012 included $7,342,000 in increased revenues from New Store operations. For purposes of comparing the nine months ended September 30, 2012 to the nine months ended September 30, 2011, New Stores include properties acquired between January 1, 2011 and September 30, 2012. Same Store revenues increased $742,000 for the nine months ended September 30, 2012 as compared to the same period in the prior year. For purposes of comparing the nine months ended September 30, 2012 to the nine months ended September 30, 2011, Same Stores include properties owned before January 1, 2011. Same Store average occupancy increased from 84.0% for the nine months ended September 30, 2011 to 84.5% for the nine months ended September 30, 2012, increasing Same Store revenue $344,000. The Same Store average revenue per leased square foot increased $0.30 for the nine months ended September 30, 2012 to $12.53 per leased square foot as compared to the nine months ended September 30, 2011 average revenue per leased square foot of $12.23, resulting in an increase of Same Store revenues of $398,000.

Property expenses.  Our property expenses were approximately $12,522,000 for the nine months ended September 30, 2012 as compared to $9,718,000 for the nine months ended September 30, 2011, an increase of $2,804,000, or 29%.  The primary components of total property expenses are detailed in the table below (in thousands, except percentages):

	Nine Months Ended September 30,
	2012		2011		Change		% Change
Real estate taxes	$	4,442	$	3,390	$	1,052	31	%
Utilities	2,199		1,823		376		21	%
Contract services	1,959		1,724		235		14	%
Repairs and maintenance	1,335		945		390		41	%
Bad debt	720		379		341		90	%
Labor and other	1,867		1,457		410		28	%
Total property expenses	$	12,522	$	9,718	$	2,804	29	%

Real estate taxes.  Real estate taxes increased $1,052,000, or 31%, during the nine months ended September 30, 2012 as compared to the same period in 2011. Real estate taxes for New Store properties were approximately $905,000 for the nine months ended September 30, 2012. Same Store real estate taxes increased approximately $147,000 during the nine months ended September 30, 2012 as compared to the same period in 2011. The primary reason for the increases in Same Store taxes were increases in 2011 property values of several of our Houston properties that were under dispute with the taxing authority. Approximately $100,000 of the increase related to 2011 valuations, which will not repeat in future periods. We actively work to keep our valuations and resulting taxes low because a majority of these taxes are charged to our tenants through triple net leases, and we strive to keep these charges to our tenants as low as possible.

Utilities. Utilities expenses increased $376,000, or 21%, during the nine months ended September 30, 2012 as compared to the same period in 2011. Utilities expenses for New Store properties were approximately $261,000 for the nine months ended September 30, 2012. Same Store utilities expenses increased approximately $115,000 during the nine months ended September 30, 2012 as compared to the same period in 2011. The majority of the Same Store increase was attributable to a new drainage utility fee with respect to our Houston properties charged by the City of Houston, which took effect July 1, 2011.

Contract services.  Contract services expenses increased $235,000, or 14%, during the nine months ended September 30, 2012 as compared to the same period in 2011. The increase in contract services expenses included $210,000 in contract expense increases for New Store properties for the nine months ended September 30, 2012. Same Store contract service expenses increased approximately $25,000 during the nine months ended September 30, 2012 as compared to the same period in 2011.

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Repairs and maintenance. Repairs and maintenance expenses increased $390,000, or 41%, during the nine months ended September 30, 2012 as compared to the same period in 2011. Repairs and maintenance expenses for the nine months ended September 30, 2012 included approximately $325,000 in increases for New Store properties. Same Store repairs and maintenance expenses increased approximately $65,000 during the nine months ended September 30, 2012 as compared to the same period in 2011. The increase in Same Store repair expenses was primarily attributable to routine roof repairs completed in 2012.

Bad debt.  Bad debt expenses increased $341,000, or 90%, during the nine months ended September 30, 2012 as compared to the same period in 2011. Bad debt expenses for the nine months ended September 30, 2012 included approximately $124,000 in increases for New Store properties. Same Store bad debt expenses increased approximately $217,000 during the nine months ended September 30, 2012 as compared to the same period in 2011. The Same Store increase in bad debt expenses was primarily attributable to outstanding rent and fees owed by several tenants in our Texas market. We are currently evaluating collection options ranging from downsizing the tenants to possible lockouts. We vigorously pursue past due accounts, but expect collection of rents to continue to be challenging for the foreseeable future.

Labor and other.  Labor and other expenses increased $410,000, or 28%, during the nine months ended September 30, 2012, as compared to the same period in 2011. Labor and other expenses for the nine months ended September 30, 2012 included approximately $185,000 in increased cost for New Store properties. Same store labor expenses and other increased approximately $225,000 during the nine months ended September 30, 2012 as compared to the same period in 2011. The increase in Same Store labor and other expenses was primarily attributable to increased insurance rates and labor allocated for repairs and maintenance.

Same Store and New Store net operating income. The components of Same Store, New Store and total property net operating income are detailed in the table below (in thousands):

	Nine Months Ended September 30,
	Same Store				New Store				Total
	2012		2011		2012		2011		2012		2011
Property revenues	$	24,952	$	24,210	$	8,079	$	737	$	33,031	$	24,947
Property expenses	10,249		9,455		2,273		263		12,522		9,718
Property net operating income	$	14,703	$	14,755	$	5,806	$	474	$	20,509	$	15,229

Other expenses.  Our other expenses were $18,698,000 for the nine months ended September 30, 2012, as compared to $14,761,000 for the nine months ended September 30, 2011, an increase of $3,937,000, or 27%.  The primary components of other expenses, are detailed in the table below (in thousands, except percentages):

	Nine Months Ended September 30,
	2012			2011			Change		% Change
General and administrative	$	5,392		$	4,737		$	655	14	%
Depreciation and amortization	8,319			6,126			2,193		36	%
Interest expense	5,261			4,277			984		23	%
Interest, dividend and other investment income	(274		)	(379		)	105		(28	)%
Total other expenses	$	18,698		$	14,761		$	3,937	27	%

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General and administrative.  General and administrative expenses increased approximately $655,000, or 14%, for the nine months ended September 30, 2012 as compared to the same period in 2011. The increases in general and administrative expenses included increases in salaries and benefits of $304,000, an employee separation cost of $107,000, share-based compensation costs of $151,000 and acquisition, accounting and other professional fees of $367,000 offset by a decrease in legal expenses of $226,000. The majority of the share-based compensation cost is from an annual grant of common shares to the independent members of our board of trustees, additional employee grants and expenses related to the expected vesting of performance-based shares. As of September 30, 2012, there was approximately $1,380,000 in unrecognized compensation cost related to outstanding non-vested performance-based shares, which is expected to to vest over a period of fifteen months and approximately $90,000 in unrecognized compensation cost related to outstanding non-vested time-based shares, which are expected to be recognized over a weighted-average period of approximately one year. The decrease in legal and professional fees is primarily attributable to litigation costs incurred in 2011 with a former tenant regarding damages to one of our properties.

Depreciation and amortization.  Depreciation and amortization increased $2,193,000, or 36%, for the nine months ended September 30, 2012 as compared to the same period in 2011. Depreciation for improvements to Same Store properties increased $463,000 for the nine months ended September 30, 2012 as compared to the same period in 2011, and amortization of capitalized loan fees increased $638,000. The increase in Same Store depreciation is attributable to redevelopment and re-tenanting investments, most notably at our Windsor and Lion Square locations, and the increase in amortization of capitalized loan fees is the result of fees associated with our Credit Facility (as defined below). Lease commissions and depreciation of corporate assets increased $14,000 for the nine months ended September 30, 2012 as compared to the same period in 2011. Depreciation for New Store properties was $1,078,000.

Interest expense. Interest expense increased $984,000, or 23%, for the nine months ended September 30, 2012 as compared to the same period in 2011. The increase in interest expense is comprised of approximately $1,669,000 in interest expense resulting from an approximate $39,995,000 increase in our average notes payable balance during the nine months ended September 30, 2012 as compared to the same period 2011, offset by a $685,000 decrease in interest expense resulting from a decrease in the effective interest rate from 5.56% to 4.92% during nine months ended September 30, 2012 as compared to the same period in 2011.

Interest, dividend and other investment income. Interest, dividend and other investment income decreased $105,000, or 28%, for the nine months ended September 30, 2012 as compared to the same period in 2011. The $105,000 decrease is comprised of a $1,000 decrease in dividend income, a $82,000 decrease in gains on sales of available-for-sale marketable securities and a $22,000 decrease in interest income.

Reconciliation of Non-GAAP Financial Measures

Funds From Operations ("FFO")

The National Association of Real Estate Investment Trusts ("NAREIT"), defines FFO as net income (loss) available to common shareholders computed in accordance with U.S. GAAP, excluding gains or losses from sales of operating real estate assets and extraordinary items, plus depreciation and amortization of operating properties, including our share of unconsolidated real estate joint ventures and partnerships.  We calculate FFO in a manner consistent with the NAREIT definition. In October 2011, NAREIT communicated to its members that the exclusion of impairment writedowns of depreciable real estate is consistent with the definition of FFO, and prior periods should be restated to be consistent with this guidance. As we have not had any impairments in the past five years, we were not required to restate our FFO for prior periods.

Management uses FFO as a supplemental measure to conduct and evaluate our business because there are certain limitations associated with using U.S. GAAP net income (loss) alone as the primary measure of our operating performance. Historical cost accounting for real estate assets in accordance with U.S. GAAP implicitly assumes that the value of real estate assets diminishes predictably over time.  Because real estate values instead have historically risen or fallen with market conditions, management believes that the presentation of operating results for real estate companies that use historical cost accounting is insufficient by itself.  In addition, securities analysts, investors and other interested parties use FFO as the primary metric for comparing the relative performance of equity REITs.  

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FFO should not be considered as an alternative to net income or other measurements under U.S. GAAP, as an indicator of our operating performance or to cash flows from operating, investing or financing activities as a measure of liquidity.  FFO does not reflect working capital changes, cash expenditures for capital improvements or principal payments on indebtedness. Although our calculation of FFO is consistent with that of NAREIT, there can be no assurance that FFO presented by us is comparable to similarly titled measures of other REITs.

FFO Core

Management believes that the computation of FFO in accordance with NAREIT's definition includes certain items

that are not indicative of the results provided by our operating portfolio and affect the comparability of our period-over-period performance. These items include, but are not limited to, legal settlements, legal and professional fees, gains and losses on insurance claim settlements and acquisition costs. Therefore, in addition to FFO, management uses FFO Core, which we define to exclude such items. Management believes that these adjustments are appropriate in determining FFO Core as they are not indicative of the operating performance of our assets. In addition, we believe that FFO Core is a useful supplemental measure for the investing community to use in comparing us to other REITs as many REITs provide some form of adjusted or modified FFO. However, there can be no assurance that FFO Core presented by us is comparable to the adjusted or modified FFO of other REITs.

Below are the calculations of FFO and FFO Core and the reconciliations to net income, which we believe is the most comparable U.S. GAAP financial measure (in thousands):

	Three Months Ended					Nine Months Ended
	September 30,					September 30,
	2012		2011			2012			2011
FFO AND FFO-CORE
Net income attributable to Whitestone REIT	$	163	$	578		$	1,395		$	561
Depreciation and amortization of real estate assets	2,657		1,933			7,160			5,610
(Gain) loss on sale or disposal of assets	77		(398		)	105			(380		)
Net income attributable to noncontrolling interests	9		97			99			122
FFO	2,906		2,210			8,759			5,913
Acquisition costs	338		185			532			327
Legal settlement	—		(103		)	(131		)	254
FFO-Core	$	3,244	$	2,292		$	9,160		$	6,494

Property Net Operating Income ("NOI")

Management believes that NOI is a useful measure of our property operating performance. We define NOI as operating revenues (rental and other revenues) less property and related expenses (property operation and maintenance and real estate taxes). Other REITs may use different methodologies for calculating NOI and, accordingly, our NOI may not be comparable to other REITs. Because NOI excludes general and administrative expenses, depreciation and amortization, involuntary conversion, interest expense, interest income, provision for income taxes and gain or loss on sale or disposition of assets, it provides a performance measure that, when compared year over year, reflects the revenues and expenses directly associated with owning and operating commercial real estate properties and the impact to operations from trends in occupancy rates, rental rates and operating costs, providing perspective not immediately apparent from net income. We use NOI to evaluate our operating performance since NOI allows us to evaluate the impact that factors such as occupancy levels, lease structure, lease rates and tenant base have on our results, margins and returns. In addition, management believes that NOI provides useful information to the investment community about our property and operating performance when compared to other REITs since NOI is generally recognized as a standard measure of property performance in the real estate industry. However, NOI should not be viewed as a measure of our overall financial performance since it does not reflect general and administrative expenses, depreciation and amortization, involuntary conversion, interest expense, interest income, provision for income taxes and gain or loss on sale or disposition of assets, the level of capital expenditures and leasing costs necessary to maintain the operating performance of our properties.

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Below is the calculation of NOI and the reconciliations to net income (loss), which we believe is the most comparable U.S. GAAP financial measure (in thousands):

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2012			2011			2012			2011
PROPERTY NET OPERATING INCOME
Net income attributable to Whitestone REIT	$	163		$	578		$	1,395		$	561
General and administrative expenses	1,888			1,495			5,392			4,737
Depreciation and amortization	3,112			2,161			8,319			6,126
Interest expense	1,815			1,430			5,261			4,277
Interest, dividend and other investment income	(121		)	(264		)	(274		)	(379		)
Provision for income taxes	77			54			212			165
Loss on disposal of assets	77			(1		)	105			17
Gain on sale of property	—			(397		)	—			(397		)
Net income attributable to noncontrolling interests	9			97			99			122
NOI	$	7,020		$	5,153		$	20,509		$	15,229

Liquidity and Capital Resources

Our short-term liquidity requirements consist primarily of distributions to holders of our common shares and OP units, including those required to maintain our REIT status and satisfy our current quarterly distribution target of $0.2850 per share and OP unit, recurring expenditures, such as repairs and maintenance of our properties, non-recurring expenditures, such as capital improvements and tenant improvements, debt service requirements, and, potentially, acquisitions of additional properties.

     During the nine months ended September 30, 2012, our cash provided from operating activities was $9,921,000 and our total distributions were $11,326,000.  Therefore, we had distributions in excess of cash flow from operations of approximately $1,405,000. On February 27, 2012, we, through our Operating Partnership, entered into our new three-year $125 million unsecured revolving credit facility (the "Credit Facility"), which we use for general corporate purposes, including acquisitions and redevelopment of existing properties in our portfolio. The Credit Facility replaced our previous unsecured revolving credit facility. We anticipate that cash flows from operating activities and our borrowing capacity under the Credit Facility will provide adequate capital for our working capital requirements, anticipated capital expenditures and scheduled debt payments in the short term. We also believe that cash flows from operating activities and our borrowing capacity will allow us to make all distributions required for us to continue to qualify to be taxed as a REIT for federal income tax purposes.

Our long-term capital requirements consist primarily of maturities under our longer-term debt agreements, development and redevelopment costs, and potential acquisitions. We expect to meet our long-term liquidity requirements with net cash from operations, long-term indebtedness, issuances of common shares and OP units, sales of properties that no longer meet our Community Centered Property strategy and other financing opportunities, including debt financing. We believe that we have access to multiple sources of capital to fund our long-term liquidity requirements, including the incurrence of additional debt and the issuance of additional equity. However, our ability to incur additional debt will be dependent on a number of factors, including our degree of leverage, the value of our unencumbered assets and borrowing restrictions that may be imposed by lenders. Our ability to access the equity markets will be dependent on a number of factors as well, including general market conditions for REITs and market perceptions about our Company.

We expect that our rental income will increase as we continue to acquire additional properties, subsequently increasing our cash flows generated from operating activities. We intend to continue acquiring such additional properties through equity issuances and debt financing.

On July 12, 2012, we filed a universal shelf registration statement on Form S-3 with the SEC, allowing us to offer up to $350 million in securities, from time to time, including common shares, preferred shares, debt securities, depositary shares and subscription rights. However, there can be no assurance that we will be able to complete any such offerings of securities. Factors influencing the availability of additional financing include investor perception of our prospects and the general condition of the financial markets, among others.

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On August 28, 2012, we completed the sale of 4,830,000 common shares, $0.001 par value per share, including 630,000 common shares pursuant to the exercise of the underwriters' over-allotment option, at a price to the public of $12.80 per share. Total net proceeds from the offering, including over-allotment shares, and after deducting the underwriting discount and offering expenses, were approximately $58.7 million, which we intend to use for general corporate purposes, including property acquisitions, debt repayment, capital expenditures, the expansion, redevelopment and/or re-tenanting of properties in our portfolio, working capital and other general purposes.

Our capital structure includes non-recourse mortgage debt that we assumed or originated on certain properties. We may hedge the future cash flows of certain variable rate debt transactions principally through interest rate swaps with major financial institutions.

Cash and Cash Equivalents

We had cash and cash equivalents of approximately $8,339,000 as of September 30, 2012, as compared to $5,695,000 on December 31, 2011.  The increase of $2,644,000 was primarily the result of the following:

Sources of Cash

• Cash flow from operations of $9,921,000 for the nine months ended September 30, 2012;

• Net proceeds of $33,956,000 from our revolving credit facility, net of origination costs;

• Net proceeds of $58,679,000 from issuance of common shares;

• Proceeds from sales of marketable securities of $5,509,000;

Uses of Cash

• Payment of distributions to common shareholders and OP unit holders of $11,326,000;

• Investments in marketable securities of $750,000;

• Acquisitions of real estate of $79,400,000;

• Additions to real estate of $9,297,000;

• Payments of exchange offer costs of $249,000;

• Payments of notes payable of $2,853,000;

• Payments of loan origination costs of $1,546,000.

     We place all cash in short-term, highly liquid investments that we believe provide appropriate safety of principal.

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Debt

Debt consisted of the following as of the dates indicated (in thousands):

Description	September 30, 2012		December 31, 2011
Fixed rate notes
$1.4 million 5.00% Note, due 2012	$	1,363	$	1,318
$14.1 million 5.695% Note, due 2013	13,923		14,110
$3.0 million 6.00% Note, due 2021 (1)	2,952		2,978
$10.0 million 6.04% Note, due 2014	9,189		9,326
$1.5 million 6.50% Note, due 2014	1,451		1,471
$11.2 million 6.52% Note, due 2015	10,648		10,763
$21.4 million 6.53% Notes, due 2013	19,034		19,524
$24.5 million 6.56% Note, due 2013	23,254		23,597
$9.9 million 6.63% Notes, due 2014	9,001		9,221
$0.7 million 2.97% Note, due 2012	193		23
Floating rate notes
Unsecured line of credit, LIBOR plus 2.75% to 3.75%, due 2015	45,000		11,000
$9.2 million, Prime Rate less 2.00%, due 2017	7,861		—
$26.9 million, LIBOR plus 2.86% Note, due 2013	23,947		24,559
	$	167,816	$	127,890

⁽¹⁾  The 6.00% interest rate is fixed through March 30, 2016. On March 31, 2016 the interest rate will reset to the rate of interest for a five-year balloon note with a thirty-year amortization as published by the Federal Home Loan Bank.

As of September 30, 2012, our $122.6 million in secured debt was collateralized by 27 properties with a carrying value of $162.5 million.  Our loans contain restrictions that would require prepayment penalties for the acceleration of outstanding debt and are secured by deeds of trust on certain of our properties and by assignment of certain rents and leases associated with those properties.  As of September 30, 2012, we were in compliance with all loan covenants.

On August 8, 2012, we assumed a $9.2 million variable rate note as part of our acquisition of Paradise Plaza (See Note 15 to the accompanying consolidated financial statements). The variable rate is based on the Prime Rate less 2.00% and matures on December 27, 2017. As part of the purchase, we recorded a discount on the note of $1.3 million, which will amortize into interest expense over the life of the loan.

The Credit Facility, which is available to us for acquisitions of properties and and working capital, is our primary source of additional credit. As of September 30, 2012, $45.0 million was drawn on the Credit Facility, and our borrowing capacity was $80.0 million, assuming use of the proceeds to acquire properties, or repayment of debt on properties, that are eligible to be included in the unsecured borrowing base. The Credit Facility bears interest at LIBOR plus 2.75% to 3.75%, and matures on February 27, 2015. As of September 30, 2012, the interest rate was 3.00%.

We are the guarantor for funds borrowed by the Operating Partnership under the Credit Facility. The Credit Facility contains customary terms and conditions, including, without limitation, affirmative and negative covenants such as information reporting requirements, maximum secured indebtedness to total asset value, minimum EBITDA (earnings before interest, taxes, depreciation, amortization and extraordinary items) to fixed charges, minimum property net operating income to total indebtedness and maintenance of net worth. The Credit Facility also contains customary events of default with customary notice and cure, including, without limitation, nonpayment, breach of covenant, material misrepresentation of representations and warranties, cross-default to other major indebtedness, change of control, bankruptcy and loss of REIT tax status. As of September 30, 2012, we were in compliance with all covenants.

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Scheduled maturities of our outstanding debt as of September 30, 2012 were as follows (in thousands):

Year	Amount Due
2012	$	2,291
2013	80,292
2014	19,171
2015	55,317
2016	73
Thereafter	10,672
Total	$	167,816

We will have approximately $14 million of debt maturing in June 2013 and approximately $66 million maturing in October and November 2013. The majority of this debt is with insurance companies and was entered into in late 2008. We have begun renewal discussions with our current lenders and expect to renew this debt with our current lenders or new lenders at rates and terms similar or better than our current rates and terms. We also have availability under our Credit Facility should we be unable to obtain similar or better financing from our current lenders or new lenders.

Capital Expenditures

We continually evaluate our properties’ performance and value. We may determine it is in our shareholders’ best interest to invest capital in properties that we believe have potential for increasing value. We also may have unexpected capital expenditures or improvements for our existing assets. Additionally, we intend to continue investing in similar properties outside of the markets on which we focus in cities with exceptional demographics to diversify market risk, and we may incur significant capital expenditures or make improvements in connection with any properties we may acquire.

Contractual Obligations

During the three months ended September 30, 2012, there were no material changes outside of the ordinary course of business to the information regarding specified contractual obligations contained in our Annual Report on Form 10-K for the year ended December 31, 2011.

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Distributions

The following table summarizes the cash distributions paid or payable to holders of our common shares and noncontrolling OP units during each quarter during 2011 and the nine months ended September 30, 2012 (in thousands, except per share data):

	Common Shares (1)				Noncontrolling OP Unit Holders				Total
Quarter Paid	Distributions Per Common Share		Total Amount Paid		Distributions Per OP Unit		Total Amount Paid		Total Amount Paid
2012
Third Quarter	$	0.2850	$	3,859	$	0.2850	$	224	$	4,083
Second Quarter	0.2850		3,362		0.2850		258		3,620
First Quarter	0.2850		3,322		0.2850		301		3,623
Total	$	0.8550	$	10,543	$	0.8550	$	783	$	11,326
2011
Fourth Quarter	$	0.2850	$	3,193	$	0.2850	$	430	$	3,623
Third Quarter	0.2850		3,115		0.2850		514		3,629
Second Quarter	0.2850		2,121		0.2850		515		2,636
First Quarter	0.2850		1,616		0.2850		515		2,131
Total	$	1.1400	$	10,045	$	1.1400	$	1,974	$	12,019

⁽¹⁾  Effective June 27, 2012, each outstanding Class A common share was reclassified into one Class B common share, and the Class B common shares were redesignated as "common shares." See Note 10 to the accompanying consolidated financial statements.

Taxes

We elected to be taxed as a REIT under the Code beginning with our taxable year ended December 31, 1999.  As a REIT, we generally are not subject to federal income tax on income that we distribute to our shareholders.  If we fail to qualify as a REIT in any taxable year, we will be subject to federal income tax on our taxable income at regular corporate rates.  We believe that we are organized and operate in a manner to qualify and be taxed as a REIT, and we intend to operate so as to remain qualified as a REIT for federal income tax purposes.

Environmental Matters

Our properties are subject to environmental laws and regulations adopted by various governmental authorities in the jurisdictions in which our operations are conducted. From our inception, we have incurred no significant environmental costs, accrued liabilities or expenditures to mitigate or eliminate future environmental contamination.

Off-Balance Sheet Arrangements

We had no significant off-balance sheet arrangements as of September 30, 2012 and December 31, 2011.

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Item 3.  Quantitative and Qualitative Disclosures About Market Risk.

Our future income, cash flows and fair value relevant to our financial instruments depends upon prevailing market interest rates. Market risk refers to the risk of loss from adverse changes in market prices and interest rates. Based upon the nature of our operations, we are not subject to foreign exchange rate or commodity price risk. The principal market risk to which we are exposed is the risk related to interest rate fluctuations. Many factors, including governmental monetary and tax policies, domestic and international economic and political considerations, and other factors that are beyond our control contribute to interest rate risk. Our interest rate risk objective is to limit the impact of interest rate fluctuations on earnings and cash flows and to lower our overall borrowing costs. To achieve this objective, we manage our exposure to fluctuations in market interest rates for our borrowings through the use of fixed rate debt instruments to the extent that reasonably favorable rates are obtainable.

All of our financial instruments were entered into for other than trading purposes.

Fixed Interest Rate Debt

As of September 30, 2012, approximately 59% of our outstanding debt was subject to fixed interest rates, which limit the risk of fluctuating interest rates. Though a change in the market interest rates affects the fair market value, it does not impact net income to shareholders or cash flows. Our total outstanding fixed interest rate debt had an average effective interest rate as of September 30, 2012 of approximately 6.32% per annum with expirations ranging from 2012 to 2021 (see Note 6 to our accompanying consolidated financial statements for further detail). As of September 30, 2012, we had approximately $98.9 million of fixed rate debt outstanding. Holding other variables constant, a 1% increase or decrease in interest rates would cause a $1.2 million decline or increase, respectively, in the fair value for our fixed rate debt.

Variable Interest Rate Debt

As of September 30, 2012, we had $68.9 million of loans, or approximately 41% of our outstanding debt, subject to floating interest rates of LIBOR plus 2.75% to 3.75%. As of September 30, 2012, we had a fixed rate hedge on $7.9 million of variable rate debt, which is not subject to interest rate fluctuations. The impact of a 1% increase or decrease in interest rates on our non-hedged variable rate debt would result in a decrease or increase of annual net income of approximately $0.7 million, respectively.

Item 4.  Controls and Procedures.

Evaluation of Disclosure Controls and Procedures

The management of Whitestone REIT, under the supervision and with the participation of our principal executive and financial officers, has evaluated the effectiveness of our disclosure controls and procedures in ensuring that the information required to be disclosed in our filings under the Securities Exchange Act of 1934, as amended, is recorded, processed, summarized and reported within the time periods specified in the SEC's rules and forms, including ensuring that such information is accumulated and communicated to Whitestone REIT's management, as appropriate, to allow timely decisions regarding required disclosure. Based on such evaluation, our principal executive and financial officers have concluded that such disclosure controls and procedures were effective as of September 30, 2012 (the end of the period covered by this Report).

Changes in Internal Control Over Financial Reporting

During the nine months ended September 30, 2012, there were no changes in our internal control over financial reporting that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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PART II. OTHER INFORMATION

Item 1. Legal Proceedings.

We are subject to various legal proceedings and claims that arise in the ordinary course of business.  These matters are generally covered by insurance.  While the resolution of these matters cannot be predicted with certainty, management believes the final outcome of such matters will not have a material adverse effect on our financial position, results of operation or liquidity.

Item 1A. Risk Factors.

There have been no material changes from the risk factors disclosed in the “Risk Factors” section of Whitestone's Annual Report on Form 10-K for the year ended December 31, 2011.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds.

(a) During the period covered by this Form 10-Q, we did not sell any equity securities that were not registered under the Securities Act of 1933.

(b) Not applicable.

(c) Not applicable.

Item 3. Defaults Upon Senior Securities.

None.

Item 4. Mine Safety Disclosures.

Not applicable.

Item 5. Other Information.

None.

Item 6. Exhibits.

The exhibits listed on the accompanying Exhibit index are filed, furnished and incorporated by reference (as stated therein) as part of this Report.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

		WHITESTONE REIT
Date:	November 7, 2012	/s/ James C. Mastandrea
		James C. Mastandrea
		Chief Executive Officer
		(Principal Executive Officer)

Date:	November 7, 2012	/s/ David K. Holeman
		David K. Holeman
		Chief Financial Officer
		(Principal Financial and Principal Accounting Officer)

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EXHIBIT INDEX

Exhibit No. Description

3.1.1 Articles of Amendment and Restatement of Declaration of Trust of Whitestone REIT (previously filed as and incorporated by reference to Exhibit 3.1 to the Registrant's Current Report on Form 8-K, filed on July 31, 2008)

3.1.2 Articles Supplementary (previously filed as and incorporated by reference to Exhibit 3(i).1 to the Registrant's Current Report on Form 8-K, filed on December 6, 2006)

3.1.3 Articles of Amendment (previously filed as and incorporated by reference to Exhibit 3.1 to the Registrant's Current Report on Form 8-K, filed on August 24, 2010)

3.1.4 Articles of Amendment (previously filed as and incorporated by reference to Exhibit 3.2 to the Registrant's Current Report on Form 8-K, filed on August 24, 2010)

3.1.5 Articles Supplementary (previously filed as and incorporated by reference to Exhibit 3.3 to the Registrant's Current Report on Form 8-K, filed on August 24, 2010)

3.1.6 Articles of Amendment (previously filed as and incorporated by reference to Exhibit 3.1.1 to the Registrant's Current Report on Form 8-K, filed on July 27, 2012)

3.1.7 Articles of Amendment (previously filed as and incorporated by reference to Exhibit 3.1.2 to Registrant's Current Report on Form 8-K, filed on July 27, 2012)

3.2 Amended and Restated Bylaws (previously filed as and incorporated by reference to Exhibit 3.1 to the Registrant's Current Report on Form 8-K, filed on October 9, 2008)

4.1 Dividend Reinvestment Plan (previously filed as and incorporated by reference to Exhibit A of the Registrant's Registration Statement of Form S-3 (No. 333-174608), filed on May 13, 2011)

10.1 Summary of Relocation Arrangement, as amended, between Whitestone REIT and James C. Mastandrea, as of August 6, 2012 (previously filed and incorporated by reference to Exhibit 10.2 to the Registrant's Quarterly Report on Form 10-Q, filed on August 9, 2012)

12 Statement of Calculation of Consolidated Ratio of Earnings to Fixed Charges.

31.1* Certification of Principal Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

31.2* Certification of Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

32.1** Certificate of Chief Executive Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

32.2** Certificate of Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

101.INS***	XBRL Instance Document
101. SCH***	XBRL Taxonomy Extension Schema Document
101.CAL***	XBRL Taxonomy Extension Calculation Linkbase Document
101.LAB***	XBRL Taxonomy Extension Label Linkbase Document
101.PRE***	XBRL Taxonomy Extension Presentation Linkbase Document
101.DEF***	XBRL Taxonomy Extension Definition Linkbase Document

 ________________________

*       Filed herewith.

**     Furnished herewith.

***    The following financial information of the Registrant for the quarter ended September 30, 2012, formatted in XBRL (eXtensible Business Reporting Language): (i) Consolidated Balance Sheets (unaudited), (ii) Consolidated Statements of Operations and Comprehensive Income (Loss) (unaudited), (iii) Consolidated Statements of Changes in Equity (unaudited), (iv) Consolidated Statements of Cash Flows (unaudited) and (v) Notes to Consolidated Financial Statements (unaudited).

Pursuant to Rule 406T of Regulation S-T, the Interactive Data Files on Exhibit 101 hereto are deemed not filed or part of a registration statement or prospectus for purposes of Sections 11 or 12 of the Securities Act of 1933, as amended, are deemed not filed for purposes of Section 18 of the Securities and Exchange Act of 1934, as amended, and otherwise are not subject to liability under those sections.

EX-31.1

Exhibit 31.1

PRINCIPAL EXECUTIVE OFFICER

CERTIFICATION

I, James C. Mastandrea, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q, for the period ended September 30, 2012, of Whitestone REIT;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: November 7, 2012

/s/ James C. Mastandrea

James C. Mastandrea

Chairman and Chief Executive Officer

EX-31.2

Exhibit 31.2

PRINCIPAL FINANCIAL OFFICER

CERTIFICATION

I, David K. Holeman, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q, for the period ended September 30, 2012, of Whitestone REIT;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: November 7, 2012

/s/ David K. Holeman

David K. Holeman

Chief Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO SECTION 906

OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Whitestone REIT, a Maryland real estate investment trust (the “Company”) on Form 10-Q for the period ended September 30, 2012, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, James C. Mastandrea, Chief Executive Officer of the Company, certify pursuant to 18 U.S.C. §1350, as adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ James C. Mastandrea

James C. Mastandrea

Chairman and Chief Executive Officer

Date: November 7, 2012

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO SECTION 906

OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Whitestone REIT, a Maryland real estate investment trust (the “Company”) on Form 10-Q for the period ended September 30, 2012, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, David K. Holeman, Chief Financial Officer of the Company, certify pursuant to 18 U.S.C. §1350, as adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ David K. Holeman

David K. Holeman

Chief Financial Officer

Date: November 7, 2012

XML

Debt (Schedule of Maturities of Debt) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Debt Disclosure [Abstract]
2012	$ 2,291
2013	80,292
2014	19,171
2015	55,317
2016	73
Thereafter	10,672
Total	$ 167,816	$ 127,890

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Real Estate (Details) (USD $)	3 Months Ended		9 Months Ended		0 Months Ended														12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Sep. 21, 2012 Village Square at Dana Park [Member] sqft	Sep. 21, 2012 Village Square at Dana Park Adjacent Parcel [Member] acre	Sep. 21, 2012 Fountain Square [Member] sqft	Aug. 08, 2012 Paradise Plaza [Member] sqft	May 29, 2012 Shops at Pinnacle Peak [Member] sqft	Dec. 28, 2011 Shops at Starwood [Member] sqft	Dec. 28, 2011 Starwood Phase III [Member] acre	Dec. 28, 2011 Pinnacle of Scottsdale Phase II [Member] acre ft	Dec. 22, 2011 Phase I of Pinnacle of Scottsdale [Member] sqft	Aug. 16, 2011 Ahwatukee Plaza Shopping Center [Member] sqft	Aug. 08, 2011 Terravita Marketplace [Member] sqft Tenants	Jun. 28, 2011 Gilbert Tuscany Village [Member] sqft	Apr. 13, 2011 Desert Canyon Shopping Center [Member] Tenants sqft	Jul. 22, 2011 Greens Road Plaza [Member] sqft	Dec. 31, 2011 Greens Road Plaza [Member]	Jun. 28, 2011 Not Owned Property [Member] acre sqft	Aug. 08, 2011 Minimum [Member] Terravita Marketplace [Member]	Aug. 08, 2011 Maximum [Member] Terravita Marketplace [Member]
Real Estate [Line Items]
Payments to acquire property			$ 79,400,000	$ 34,034,000	$ 46,500,000	$ 4,000,000	$ 15,400,000	$ 7,100,000	$ 6,400,000	$ 15,700,000	$ 500,000	$ 1,000,000	$ 14,700,000	$ 9,300,000	$ 16,100,000	$ 5,000,000	$ 3,650,000	$ 1,800,000
Property percentage occupied					71.00%		76.00%	100.00%	76.00%	98.00%			100.00%
Gross leasable area (in square feet)					310,979		118,209	125,898	41,530	55,385			113,108	72,650	102,733	49,415	62,533
Area of land (in acres)						4.7					2.73	4.45								60
Property acquisitions, purchase price								16,300,000			1,900,000		28,800,000
Non-recourse loan											1,400,000		14,100,000
Lenght of frontage road (in feet)												400
Net rentable area pursuant to ground leases (in square feet)															51,434		12,960
Number of tenants (in tenants)															2		2
Home prices of gated golf course residential community that is adjacent to property acquisition																					250,000	1,000,000
Square footage of property (in square feet)																		20,607		120,000
Gain on property dispositions	$ (77,000)	$ 1,000	$ (105,000)	$ (17,000)															$ 400,000

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Incentive Share Plan (Schedule of Nonvested and Vested Shares Activity) (Details) (2008 Long-Term Equity Incentive Ownership Plan [Member], USD $) In Thousands, except Share data, unless otherwise specified	9 Months Ended		12 Months Ended
	Sep. 30, 2012		Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
2008 Long-Term Equity Incentive Ownership Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares, Granted, Non-Vested Shares Isused (in shares)	99,700		0	31,858	600,731
Shares Granted, Weighted-Average Grant Date Fair Value, Granted (in dollars per share)	$ 13.03	[1]	$ 0.00	$ 14.09	$ 12.37
Shares, Vested (in shares)	(15,041)		(5,169)	(55,699)	0
Shares Vested, Total Vest-Date Fair Value	$ 208		$ 80	$ 695	$ 0

[1] The fair value of the common shares granted before trading of the common shares commenced on the NYSE MKT on August 26, 2010 were determined based on observable market transactions occurring near the date of the grants. The fair value of the common shares granted subsequent to August 26, 2010 was determined based on the fair value at the date of grant.

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Summary of Significant Accounting Policies (Details) (USD $)	3 Months Ended		9 Months Ended						3 Months Ended	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Aug. 28, 2012	Jun. 27, 2012	Dec. 31, 2011	Aug. 08, 2012 Interest Rate Swap [Member] Paradise Plaza [Member]	Sep. 30, 2012 Cash Flow Hedging [Member]	Sep. 30, 2012 Cash Flow Hedging [Member]	Sep. 30, 2012 Prime Rate Less Two Point Zero Zero Percent Due 2017 [Member] Floating Rate Notes [Member]	Dec. 31, 2011 Prime Rate Less Two Point Zero Zero Percent Due 2017 [Member] Floating Rate Notes [Member]	Aug. 08, 2012 Prime Rate Less Two Point Zero Zero Percent Due 2017 [Member] Floating Rate Notes [Member] Paradise Plaza [Member]
Summary of Significant Accounting Policies [Line Items]
Face amount of debt											$ 9,200,000	$ 9,200,000	$ 9,200,000
Common shares, par value per share (in dollars per share)	$ 0.001		$ 0.001		$ 0.001	$ 0.001	$ 0.001
Conversion basis for common shares to OP units	1		1
Gains on the sale of marketable securities	78,000	154,000	110,000	192,000
Investment in available-for-sale marketable securities	1,373,000		1,373,000				5,131,000
Aggregate unrealized loss on available-for-sale marketable securities	(438,000)		(438,000)
Stated interest rate								5.716%
Fair value of cash flow hedge									(1,800,000)	(1,800,000)
Cash flow hedge recognized into earnings									0	0
Cash flow hedge losses recognized as other comprehensive loss									9,000
Interest expense capitalized	47,000		135,000
Real estate tax capitalized	50,000		113,000
Share-based compensation	$ 118,000	$ 78,000	$ 384,000	$ 233,000

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Marketable Securities (Tables)

9 Months Ended

Sep. 30, 2012

Investments, Debt and Equity Securities [Abstract]

Schedule of Available-for-Sale Securities

All of our marketable securities were classified as available-for-sale securities as of September 30, 2012 and December 31, 2011. Available-for-sale securities consisted of the following (in thousands):

	September 30, 2012
	Amortized Cost		Gains in Accumulated Other Comprehensive Income		Losses in Accumulated Other Comprehensive Income			Estimated Fair Value
Real estate common stock	$	1,811	$	—	$	(438	)	$	1,373
Total available-for-sale securities	$	1,811	$	—	$	(438	)	$	1,373

	December 31, 2011
	Amortized Cost		Gains in Accumulated Other Comprehensive Income		Losses in Accumulated Other Comprehensive Income			Estimated Fair Value
Exchange-traded fund	$	301	$	—	$	(37	)	$	264
Real estate sector mutual funds	351		—		(55		)	296
Real estate common stock	5,808		—		(1,237		)	4,571
Total available-for-sale securities	$	6,460	$	—	$	(1,329	)	$	5,131

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Related Party Transactions (Details) (Subsequent Event [Member], Executive Officer [Member], USD $)	Aug. 06, 2012
Related Party Transaction [Line Items]
Sale of residence, shortfall threshold	$ 2,450,000
Base for difference calcualtion from which tax payment rate will be calculated	1
Term of payment of housing expenses after sale of residence	1 year
Maximum [Member]
Related Party Transaction [Line Items]
Term of lump sum payment after sale of residence (in days)	5 days

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Debt (Narrative) (Details) (USD $)				9 Months Ended	12 Months Ended			9 Months Ended	12 Months Ended							0 Months Ended
	Sep. 30, 2012 CollateralizedProperties	Dec. 31, 2011	Sep. 30, 2012 Unsecured Line of Credit [Member]	Sep. 30, 2012 Prime Rate Less Two Point Zero Zero Percent Due 2017 [Member] Floating Rate Notes [Member]	Dec. 31, 2011 Prime Rate Less Two Point Zero Zero Percent Due 2017 [Member] Floating Rate Notes [Member]	Sep. 30, 2012 Prime Rate Less Two Point Zero Zero Percent Due 2017 [Member] Unsecured Line of Credit [Member]	Dec. 31, 2011 Prime Rate Less Two Point Zero Zero Percent Due 2017 [Member] Unsecured Line of Credit [Member]	Sep. 30, 2012 LIBOR Plus Two Point Seven Five Percent to Three Point Seven Five Percent Unsecured Line of Credit Due 2015 [Member] Unsecured Line of Credit [Member]	Dec. 31, 2011 LIBOR Plus Two Point Seven Five Percent to Three Point Seven Five Percent Unsecured Line of Credit Due 2015 [Member] Unsecured Line of Credit [Member]	Sep. 30, 2012 LIBOR Plus Two Point Seven Five Percent to Three Point Seven Five Percent Unsecured Line of Credit Due 2015 [Member] Minimum [Member] Unsecured Line of Credit [Member]	Dec. 31, 2011 LIBOR Plus Two Point Seven Five Percent to Three Point Seven Five Percent Unsecured Line of Credit Due 2015 [Member] Minimum [Member] Unsecured Line of Credit [Member]	Sep. 30, 2012 LIBOR Plus Two Point Seven Five Percent to Three Point Seven Five Percent Unsecured Line of Credit Due 2015 [Member] Maximum [Member] Unsecured Line of Credit [Member]	Dec. 31, 2011 LIBOR Plus Two Point Seven Five Percent to Three Point Seven Five Percent Unsecured Line of Credit Due 2015 [Member] Maximum [Member] Unsecured Line of Credit [Member]	Sep. 30, 2012 Debt Maturing in June 2013 [Member]	Sep. 30, 2012 Debt Maturing in October 2013 [Member]	Aug. 08, 2012 Paradise Plaza [Member] Prime Rate Less Two Point Zero Zero Percent Due 2017 [Member] Floating Rate Notes [Member]
Debt Instrument [Line Items]
Secured debt	$ 122,600,000
Number of collateralized properties (in collateralized properties)	27
Carrying value of collateralized properties	162,500,000
Face amount of debt				9,200,000	9,200,000											9,200,000
Credit facility, maximum borrowing capacity			125,000,000
Credit facility, amount outstanding			45,000,000
Credit facility, remaining borrowing capacity			80,000,000
Description of variable rate basis				Prime	Prime			LIBOR	LIBOR							Prime
Basis spread on variable rate				2.00%	2.00%			3.00%		2.75%	2.75%	3.75%	3.75%			2.00%
Imputed interest rate																4.13%
Debt discount																1,300,000
Notes payable	$ 167,816,000	$ 127,890,000				$ 7,861,000	$ 0	$ 45,000,000	$ 11,000,000					$ 14,000,000	$ 66,000,000

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Grants to Trustees (Details) (Individual Trustee Grant Agreements [Member], Stock Options [Member], USD $)	0 Months Ended		9 Months Ended
	Jun. 25, 2012	May 22, 2012	Sep. 30, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of independent trustees (in trustees)	2	4
Common Class A [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock granted to each trustee (in shares)	915	1,500
Restricted stock granted to trustees, vested in period (in shares)			6,000
Restricted stock granted to trustees, weighted-average grant date fair value (in dollars per share)	$ 13.39	$ 13.03

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Summary of Significant Accounting Policies

9 Months Ended

Sep. 30, 2012

Accounting Policies [Abstract]

Significant Accounting Policies

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Consolidation.  We are the sole general partner of the Operating Partnership and possess full legal control and authority over the operations of the Operating Partnership.  As of September 30, 2012 and December 31, 2011, we owned a majority of the partnership interests in the Operating Partnership.  Consequently, the accompanying consolidated financial statements include the accounts of the Operating Partnership.  All significant inter-company balances have been eliminated. Noncontrolling interest in the accompanying consolidated financial statements represents the share of equity and earnings of the Operating Partnership allocable to holders of partnership interests other than us.  Net income or loss is allocated to noncontrolling interests based on the weighted-average percentage ownership of the Operating Partnership during the period.  Issuances of additional common shares of beneficial interest, par value $0.001 per share, in Whitestone (the "common shares") and units of limited partnership interest in the Operating Partnership that are convertible into cash or, at our option, common shares on a one-for-one basis (the “OP units”) changes the ownership interests of both the noncontrolling interests and Whitestone.

Basis of Accounting.  Our financial records are maintained on the accrual basis of accounting whereby revenues are recognized when earned and expenses are recorded when incurred.

Use of Estimates.   The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting period.  Significant estimates that we use include the estimated fair values of properties acquired, the estimated useful lives for depreciable and amortizable assets and costs, the estimated allowance for doubtful accounts and estimates supporting our impairment analysis for the carrying values of our real estate assets.  Actual results could differ from those estimates.

Reclassifications.  We have reclassified certain prior period amounts in the accompanying consolidated financial statements in order to be consistent with the current period presentation.  These reclassifications had no effect on net income, total assets, total liabilities or equity. As of June 27, 2012, prior period Class A and Class B common shares have been consolidated into a single class of common shares. See additional discussion related to the reclassification in Note 10.

Marketable Securities. We classify our existing marketable equity securities as available-for-sale in accordance with the Financial Accounting Standards Board's ("FASB") Investments-Debt and Equity Securities guidance. These securities are carried at fair value with unrealized gains and losses reported in equity as a component of accumulated other comprehensive income or loss. The fair value of the marketable securities is determined using Level 1 inputs under FASB Accounting Standards Codification ("ASC") 820, "Fair Value Measurements and Disclosures." Level 1 inputs represent quoted prices available in an active market for identical investments as of the reporting date. Gains and losses on securities sold are based on the specific identification method, and are reported as a component of interest, dividend and other investment income. We recognized gains on the sale of marketable securities of approximately $78,000 and $154,000 for the three months ended September 30, 2012 and 2011, respectively, and $110,000 and $192,000 for the nine months ended September 30, 2012 and 2011, respectively. As of September 30, 2012, our investment in available-for-sale marketable securities was approximately $1,373,000, which includes an aggregate unrealized loss of approximately $438,000.

Derivative Instruments and Hedging Activities. On August 8, 2012, as part of our acquisition of Paradise Plaza (see Note 15), we assumed a $9.2 million variable rate note (see Note 6). The note included an interest rate swap that had a fixed interest rate of 5.72%. We have designated the interest rate swap as a cash flow hedge with the effective portion of the changes in fair value recorded in comprehensive income (loss) and subsequently reclassified into earnings in the period that the hedged transaction affects earnings. The ineffective portion of the change in fair value, if any, is recognized directly in earnings. As of September 30, 2012, we consider our cash flow hedge to be highly effective. Our cash flow hedge is determined using Level 2 inputs under ASC 820. Level 2 inputs represent quoted prices in active markets for similar assets or liabilities; quoted prices in markets that are not active; and model-derived valuations whose inputs are observable.

As of September 30, 2012, the fair value our cash flow hedge was $1.8 million. For the three and nine months ended September 30, 2012, we recognized $9,000 as other comprehensive losses. For the three and nine months ended September 30, 2012, we did not recognize any portion of the cash flow hedge into earnings.

Development Properties. Land, buildings and improvements are recorded at cost. Expenditures related to the development of real estate are carried at cost which includes capitalized carrying charges and development costs. Carrying charges, primarily interest, real estate taxes, loan fees, and direct and indirect development costs related to buildings under construction, are capitalized as part of construction in progress. The capitalization of such costs ceases when the property, or any completed portion, becomes available for occupancy. For the three months ended September 30, 2012, approximately $47,000 and $50,000 in interest expense and real estate taxes, respectively, were capitalized, and for the nine months ended September 30, 2012, approximately $135,000 and $113,000 in interest expense and real estate taxes, respectively, were capitalized. No interest expense or real estate taxes were capitalized during the three or nine months ended September 30, 2011.

Share-Based Compensation.   From time to time, we award nonvested restricted common share awards or restricted common share unit awards, which may be converted into common shares, to executive officers and employees under our 2008 Long-Term Equity Incentive Ownership Plan (the “2008 Plan”).  The vast majority of the awarded shares and units vest when certain performance conditions are met.  We recognize compensation expense when achievement of the performance conditions is probable based on management's most recent estimates using the fair value of the shares as of the grant date. We recognized $118,000 and $78,000 in share-based compensation for the three months ended September 30, 2012 and 2011, respectively, and we recognized $384,000 and $233,000 in share-based compensation for the nine months ended September 30, 2012 and 2011, respectively.

Noncontrolling Interests.  Noncontrolling interests is the portion of equity in a subsidiary not attributable to a parent.  The ownership interests not held by the parent are considered noncontrolling interests.  Accordingly, we have reported noncontrolling interests in equity on the consolidated balance sheets but separate from Whitestone's equity.  On the consolidated statements of operations, subsidiaries are reported at the consolidated amount, including both the amount attributable to Whitestone and noncontrolling interests.  Consolidated statements of changes in equity are included for quarterly financial statements, including beginning balances, activity for the period and ending balances for shareholders' equity, noncontrolling interests and total equity.

See our Annual Report on Form 10-K for the year ended December 31, 2011 for further discussion on significant accounting policies.

Recent Accounting Pronouncements.  There are no new unimplemented accounting pronouncements that are expected to have a material impact on our results of operations, financial position or cash flows.

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Equity (Details) (USD $) In Thousands, except Share data, unless otherwise specified	0 Months Ended	3 Months Ended		9 Months Ended							1 Months Ended			1 Months Ended		1 Months Ended			1 Months Ended		1 Months Ended			1 Months Ended		3 Months Ended							9 Months Ended	12 Months Ended	3 Months Ended														9 Months Ended		12 Months Ended		3 Months Ended							9 Months Ended	12 Months Ended
	Aug. 28, 2012	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Jun. 27, 2012	Dec. 31, 2011	Jun. 27, 2012 Preferred Stock [Member]	Sep. 30, 2012 OP Units [Member]	Dec. 31, 2011 OP Units [Member]	Oct. 03, 2011 First Exchange Offer [Member] Common Class A [Member]	Sep. 02, 2011 First Exchange Offer [Member] Common Class A [Member]	Sep. 02, 2011 First Exchange Offer [Member] Common Class B [Member]	Oct. 03, 2011 First Exchange Offer [Member] OP Units [Member]	Sep. 02, 2011 First Exchange Offer [Member] OP Units [Member]	Jan. 11, 2012 Second Exchange Offer [Member] Common Class A [Member]	Dec. 09, 2011 Second Exchange Offer [Member] Common Class A [Member]	Dec. 09, 2011 Second Exchange Offer [Member] Common Class B [Member]	Jan. 11, 2012 Second Exchange Offer [Member] OP Units [Member]	Dec. 09, 2011 Second Exchange Offer [Member] OP Units [Member]	Jun. 08, 2012 Third Exchange Offer [Member] Common Class A [Member]	May 10, 2012 Third Exchange Offer [Member] Common Class A [Member]	May 10, 2012 Third Exchange Offer [Member] Common Class B [Member]	Jun. 08, 2012 Third Exchange Offer [Member] OP Units [Member]	May 10, 2012 Third Exchange Offer [Member] OP Units [Member]	Sep. 30, 2012 Cash Distribution [Member]	Jun. 30, 2012 Cash Distribution [Member]	Mar. 31, 2012 Cash Distribution [Member]	Dec. 31, 2011 Cash Distribution [Member]	Sep. 30, 2011 Cash Distribution [Member]	Jun. 30, 2011 Cash Distribution [Member]	Mar. 31, 2011 Cash Distribution [Member]	Sep. 30, 2012 Cash Distribution [Member]	Dec. 31, 2011 Cash Distribution [Member]	Sep. 30, 2012 Cash Distribution [Member] Common Class A [Member]		Jun. 30, 2012 Cash Distribution [Member] Common Class A [Member]		Mar. 31, 2012 Cash Distribution [Member] Common Class A [Member]		Dec. 31, 2011 Cash Distribution [Member] Common Class A [Member]		Sep. 30, 2011 Cash Distribution [Member] Common Class A [Member]		Jun. 30, 2011 Cash Distribution [Member] Common Class A [Member]		Mar. 31, 2011 Cash Distribution [Member] Common Class A [Member]		Sep. 30, 2012 Cash Distribution [Member] Common Class A [Member]		Dec. 31, 2011 Cash Distribution [Member] Common Class A [Member]		Sep. 30, 2012 Cash Distribution [Member] OP Units [Member]	Jun. 30, 2012 Cash Distribution [Member] OP Units [Member]	Mar. 31, 2012 Cash Distribution [Member] OP Units [Member]	Dec. 31, 2011 Cash Distribution [Member] OP Units [Member]	Sep. 30, 2011 Cash Distribution [Member] OP Units [Member]	Jun. 30, 2011 Cash Distribution [Member] OP Units [Member]	Mar. 31, 2011 Cash Distribution [Member] OP Units [Member]	Sep. 30, 2012 Cash Distribution [Member] OP Units [Member]	Dec. 31, 2011 Cash Distribution [Member] OP Units [Member]	Aug. 28, 2012 Portion Attributable to Over-Allotment Option [Member]	Jun. 27, 2012 Common Class B [Member]	Jun. 27, 2012 Common Class A [Member]
Class of Stock [Line Items]
Common shares, authorized (in shares)		400,000,000		400,000,000		400,000,000	400,000,000
Common shares, par value per share (in dollars per share)	$ 0.001	$ 0.001		$ 0.001		$ 0.001	$ 0.001																																																								$ 0.001	$ 0.001
Preferred shares, shares authorized (in shares)		50,000,000		50,000,000			50,000,000	50,000,000
Preferred shares, par value per share (in dollars per share)		$ 0.001		$ 0.001			$ 0.001	$ 0.001
Common shares, issued (in shares)	4,830,000	16,839,609		16,839,609			16,839,609																																																							630,000
Share price of equity offering	$ 12.80
Proceeds from issuance of common shares	$ 58,700			$ 58,679	$ 59,667
Ownership interest in operating partnership				95.50%
Conversion ratio for class A common stock to OP unit		1		1
OP units outstanding (in shares)									17,504,987	12,677,969					453,642					453,642					453,642
OP units owned (in shares)									16,718,796	11,317,042
Weighted-average share ownership in operating partnership		94.60%	85.70%	93.40%	82.20%
Cash distribution paid (in dollars per share)																																			$ 0.2850	[1]	$ 0.2850	[1]	$ 0.2850	[1]	$ 0.2850	[1]	$ 0.2850	[1]	$ 0.2850	[1]	$ 0.2850	[1]	$ 0.8550	[1]	$ 1.1400	[1]	$ 0.2850	$ 0.2850	$ 0.2850	$ 0.2850	$ 0.2850	$ 0.2850	$ 0.2850	$ 0.8550	$ 1.1400
Cash distribution paid																										$ 4,083	$ 3,620	$ 3,623	$ 3,623	$ 3,629	$ 2,636	$ 2,131	$ 11,326	$ 12,019	$ 3,859	[1]	$ 3,362	[1]	$ 3,322	[1]	$ 3,193	[1]	$ 3,115	[1]	$ 2,121	[1]	$ 1,616	[1]	$ 10,543	[1]	$ 10,045	[1]	$ 224	$ 258	$ 301	$ 430	$ 514	$ 515	$ 515	$ 783	$ 1,974
Common stock exchange offer, conversion basis for one share or unit (in shares)													1					1					1
Common shares, outstanding (in shares)		11,437,855		11,437,855			11,437,855					867,789					867,789					867,789
Conversion of stock, shares converted (in shares)											867,789			453,642		867,789			453,580		426,986			121,156

[1] Effective June 27, 2012, each outstanding Class A common share was reclassified into one Class B common share, and the Class B common shares were redesignated as "common shares."

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Earnings (Loss) Per Share (Tables)

9 Months Ended

Sep. 30, 2012

Earnings Per Share [Abstract]

Schedule of Earnings Per Share

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2012			2011			2012			2011
(in thousands, except per share data)
Numerator:
Net income	$	172		$	675		$	1,494		$	683
Less: Net income attributable to noncontrolling interests	(9		)	(97		)	(99		)	(122		)
Distributions paid on unvested restricted shares	(5		)	(4		)	(11		)	(13		)
Undistributed earnings attributable to unvested restricted shares	—			—			—			—
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares	$	158		$	574		$	1,384		$	548
Denominator:
Weighted average number of common shares - basic	13,842			10,797			12,409			8,285
Effect of dilutive securities:
Unvested restricted shares	119			12			117			15
Weighted average number of common shares - dilutive	13,961			10,809			12,526			8,300
Earnings Per Share:
Basic:
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares	$	0.01		$	0.05		$	0.11		$	0.07
Diluted:
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares	$	0.01		$	0.05		$	0.11		$	0.07

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Debt (Tables)

9 Months Ended

Sep. 30, 2012

Debt Disclosure [Abstract]

Schedule of Debt

Debt consisted of the following as of the dates indicated (in thousands):

Description	September 30, 2012		December 31, 2011
Fixed rate notes
$1.4 million 5.00% Note, due 2012	$	1,363	$	1,318
$14.1 million 5.695% Note, due 2013	13,923		14,110
$3.0 million 6.00% Note, due 2021 (1)	2,952		2,978
$10.0 million 6.04% Note, due 2014	9,189		9,326
$1.5 million 6.50% Note, due 2014	1,451		1,471
$11.2 million 6.52% Note, due 2015	10,648		10,763
$21.4 million 6.53% Notes, due 2013	19,034		19,524
$24.5 million 6.56% Note, due 2013	23,254		23,597
$9.9 million 6.63% Notes, due 2014	9,001		9,221
$0.7 million 2.97% Note, due 2012	193		23
Floating rate notes
Unsecured line of credit, LIBOR plus 2.75% to 3.75%, due 2015	45,000		11,000
$9.2 million, Prime Rate less 2.00%, due 2017	7,861		—
$26.9 million, LIBOR plus 2.86% Note, due 2013	23,947		24,559
	$	167,816	$	127,890

⁽¹⁾  The 6.00% interest rate is fixed through March 30, 2016. On March 31, 2016 the interest rate will reset to the rate of interest for a five-year balloon note with a thirty-year amortization as published by the Federal Home Loan Bank.

Schedule of Maturities of Debt

Scheduled maturities of our outstanding debt as of September 30, 2012 were as follows (in thousands):

Year	Amount Due
2012	$	2,291
2013	80,292
2014	19,171
2015	55,317
2016	73
Thereafter	10,672
Total	$	167,816

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Incentive Share Plan (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation	$ 118	$ 78	$ 384	$ 233
2008 Long-Term Equity Incentive Ownership Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of maximum number of shares issued under plan to aggregate shares	12.50%		12.50%
Unrecognized compensation cost, period for recognition (in years)			1 year
Performance Shares [Member] | 2008 Long-Term Equity Incentive Ownership Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	1,376		1,376
Award vesting period	15 months
Non-Vested Time Based Shares [Member] | 2008 Long-Term Equity Incentive Ownership Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	$ 90		$ 90

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Equity (Tables)

9 Months Ended

Sep. 30, 2012

Stockholders' Equity Note [Abstract]

Schedule of Distributions

The following table summarizes the cash distributions paid or payable to holders of common shares and to holders of noncontrolling OP units during each quarter during 2011 and the nine months ended September 30, 2012 (in thousands, except per share/unit data):

	Common Shares (1)				Noncontrolling OP Unit Holders				Total
Quarter Paid	Distributions Per Common Share		Total Amount Paid		Distributions Per OP Unit		Total Amount Paid		Total Amount Paid
2012
Third Quarter	$	0.2850	$	3,859	$	0.2850	$	224	$	4,083
Second Quarter	0.2850		3,362		0.2850		258		3,620
First Quarter	0.2850		3,322		0.2850		301		3,623
Total	$	0.8550	$	10,543	$	0.8550	$	783	$	11,326
2011
Fourth Quarter	$	0.2850	$	3,193	$	0.2850	$	430	$	3,623
Third Quarter	0.2850		3,115		0.2850		514		3,629
Second Quarter	0.2850		2,121		0.2850		515		2,636
First Quarter	0.2850		1,616		0.2850		515		2,131
Total	$	1.1400	$	10,045	$	1.1400	$	1,974	$	12,019

⁽¹⁾  Effective June 27, 2012, each outstanding Class A common share was reclassified into one Class B common share, and the Class B common shares were redesignated as "common shares."

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Incentive Share Plan (Tables)

9 Months Ended

Sep. 30, 2012

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Share-Based Incentive Plan Activity

A summary of the share-based incentive plan activity as of and for the nine months ended September 30, 2012 is as follows:

	Shares		Weighted-Average Grant Date Fair Value (1)
Non-vested at January 1, 2012	504,023		$	12.48
Granted	99,700		13.03
Vested	(15,041	)	13.84
Forfeited	(46,302	)	12.62
Non-vested as of September 30, 2012	542,380		12.53
Available for grant at September 30, 2012	1,882,240

⁽¹⁾  The fair value of the common shares granted before trading of the common shares commenced on the NYSE MKT on August 26, 2010 were determined based on observable market transactions occurring near the date of the grants. The fair value of the common shares granted subsequent to August 26, 2010 was determined based on the fair value at the date of grant.

Schedule of Nonvested and Vested Shares Activity

A summary of our non-vested and vested shares activity for the nine months ended September 30, 2012 and years ended December 31, 2011, 2010 and 2009 is presented below:

	Shares Granted			Shares Vested
	Non-Vested Shares Issued	Weighted-Average Grant-Date Fair Value		Vested Shares		Total Vest-Date Fair Value
						(in thousands)
Nine months ended September 30, 2012	99,700	$	13.03	(15,041	)	$	208
Year ended December 31, 2011	—	—		(5,169	)	80
Year ended December 31, 2010	31,858	14.09		(55,699	)	695
Year ended December 31, 2009	600,731	12.37		—		—

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Interim Financial Statements

9 Months Ended

Sep. 30, 2012

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Interim Financial Statements

INTERIM FINANCIAL STATEMENTS

The consolidated financial statements included in this report are unaudited; however, amounts presented in the consolidated balance sheet as of December 31, 2011 are derived from our audited consolidated financial statements as of that date.  The unaudited financial statements as of September 30, 2012 have been prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) for interim financial information on a basis consistent with the annual audited consolidated financial statements and with the instructions to Form 10-Q.

The consolidated financial statements presented herein reflect all adjustments which, in the opinion of management, are necessary for a fair presentation of the financial position of Whitestone and our subsidiaries as of September 30, 2012, and the results of operations for the three and nine month periods ended September 30, 2012 and 2011, the consolidated statements of changes in equity for the nine month period ended September 30, 2012 and cash flows for the nine month periods ended September 30, 2012 and 2011.  All of these adjustments are of a normal recurring nature.  The results of operations for the interim periods are not necessarily indicative of the results expected for a full year.  The statements should be read in conjunction with the audited consolidated financial statements and the notes thereto which are included in our Annual Report on Form 10-K for the year ended December 31, 2011.

Business.  Whitestone was formed as a real estate investment trust (“REIT”), pursuant to the Texas Real Estate Investment Trust Act on August 20, 1998.  In July 2004, Whitestone changed its state of organization from Texas to Maryland.  Whitestone serves as the general partner of Whitestone REIT Operating Partnership, L.P. (the “Operating Partnership”), which was formed on December 31, 1998 as a Delaware limited partnership.  Whitestone currently conducts substantially all of its operations and activities through the Operating Partnership.  As the sole general partner of the Operating Partnership, Whitestone has the exclusive authority to manage and conduct the business of the Operating Partnership, subject to certain customary exceptions.  As of September 30, 2012 and December 31, 2011, Whitestone owned and operated 50 and 45 commercial properties, respectively in and around Houston, Dallas, San Antonio, Chicago and Phoenix.

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Interim Financial Statements (Details) (Wholly Owned Properties [Member])	Sep. 30, 2012 CommercialProperties	Dec. 31, 2011 CommercialProperties
Wholly Owned Properties [Member]
Real Estate Properties [Line Items]
Number of commercial properties	50	45

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Earnings (Loss) Per Share (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Numerator:
Net income	$ 172,000	$ 675,000	$ 1,494,000	$ 683,000
Less: Net income attributable to noncontrolling interests	(9,000)	(97,000)	(99,000)	(122,000)
Distributions paid on unvested restricted shares	(5,000)	(4,000)	(11,000)	(13,000)
Undistributed earnings attributable to unvested restricted shares	0	0	0	0
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares	158,000	574,000	1,384,000	548,000
Denominator:
Weighted average number of common shares - basic (in shares)	13,842,000	10,797,000	12,409,000	8,285,000
Effect of dilutive securities:
Unvested restricted shares (in shares)	119,000	12,000	117,000	15,000
Weighted average number of common shares - dilutive (in shares)	13,961,000	10,809,000	12,526,000	8,300,000
Basic:
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares (in dollars per share)	$ 0.01	$ 0.05	$ 0.11	$ 0.07
Diluted:
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares (in dollars per share)	$ 0.01	$ 0.05	$ 0.11	$ 0.07
OP Units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
OP units excluded from diluted earnings per share because their effect would be anti-dilutive	786,191	1,814,569	886,407	1,814,569
Restricted Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Distributions to holders of certain restricted common shares	45,000	53,000	148,000	160,000
Distributions to holders of certain restricted common shares charged against earnings	$ 40,000	$ 49,000	$ 137,000	$ 147,000

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Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Real estate assets, at cost
Property	$ 389,280	$ 292,360
Accumulated depreciation	(51,362)	(45,472)
Total real estate assets	337,918	246,888
Cash and cash equivalents	8,339	5,695
Marketable securities	1,373	5,131
Escrows and acquisition deposits	5,539	4,996
Accrued rents and accounts receivable, net of allowance for doubtful accounts	7,177	6,053
Unamortized lease commissions and loan costs	4,269	3,755
Prepaid expenses and other assets	1,271	975
Total assets	365,886	273,493
Liabilities:
Notes payable	167,816	127,890
Accounts payable and accrued expenses	11,099	9,017
Tenants' security deposits	2,846	2,232
Dividends and distributions payable	5,027	3,647
Total liabilities	186,788	142,786
Commitments and contingencies:	0	0
Equity:
Preferred shares, $0.001 par value per share; 50,000,000 shares authorized; none issued and outstanding at September 30, 2012 and December 31, 2011, respectively	0	0
Common shares, $0.001 par value per share; 400,000,000 shares authorized; 16,839,609 and 11,437,855 issued and outstanding as of September 30, 2012 and December 31, 2011, respectively	15	10
Additional paid-in capital	223,007	158,127
Accumulated other comprehensive loss	(427)	(1,119)
Accumulated deficit	(51,686)	(41,060)
Total Whitestone REIT shareholders' equity	170,909	115,958
Noncontrolling interests in subsidiary	8,189	14,749
Total equity	179,098	130,707
Total liabilities and equity	$ 365,886	$ 273,493

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Incentive Share Plan (Schedule of Share-Based Incentive Plan Activity) (Details) (2008 Long-Term Equity Incentive Ownership Plan [Member], USD $)	9 Months Ended		12 Months Ended
	Sep. 30, 2012		Dec. 31, 2011		Dec. 31, 2010	Dec. 31, 2009
2008 Long-Term Equity Incentive Ownership Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Shares, Non-vested (in shares)	504,023
Weighted-Average Grant Date Fair Value, Non-vested (in dollars per share)	$ 12.48	[1]
Shares, Granted (in shares)	99,700		0		31,858	600,731
Weighted-Average Grant Date Fair Value, Granted (in dollars per share)	$ 13.03	[1]	$ 0.00		$ 14.09	$ 12.37
Shares, Vested (in shares)	(15,041)		(5,169)		(55,699)	0
Weighted-Average Grant Date Fair Value, Vested (in dollars per share)	$ 13.84	[1]
Shares, Forfeited (in shares)	(46,302)
Weighted-Average Grant Date Fair Value, Forfeited (in dollars per share)	$ 12.62	[1]
Shares, Non-vested (in shares)	542,380		504,023
Weighted-Average Grant Date Fair Value, Non-vested (in dollars per share)	$ 12.53	[1]	$ 12.48	[1]
Shares, Available for grant (in shares)	1,882,240

[1] The fair value of the common shares granted before trading of the common shares commenced on the NYSE MKT on August 26, 2010 were determined based on observable market transactions occurring near the date of the grants. The fair value of the common shares granted subsequent to August 26, 2010 was determined based on the fair value at the date of grant.

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Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Cash flows from operating activities:
Net income	$ 1,494	$ 683
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	7,255	5,701
Amortization of deferred loan costs	1,064	425
Amortization of notes payable discount	86	0
Gain on sale of marketable securities	(110)	(192)
Loss (gain) on sale or disposal of assets and properties	(105)	380
Bad debt expense	720	379
Share-based compensation	384	233
Changes in operating assets and liabilities:
Escrows and acquisition deposits	29	385
Accrued rent and accounts receivable	(1,876)	(959)
Unamortized lease commissions	(674)	(705)
Prepaid expenses and other assets	630	581
Accounts payable and accrued expenses	200	13
Tenants' security deposits	614	160
Net cash provided by operating activities	9,921	6,324
Cash flows from investing activities:
Acquisitions of real estate	(79,400)	(34,034)
Additions to real estate	(9,297)	(3,970)
Investments in marketable securities	(750)	(13,520)
Proceeds from sale of property	0	1,571
Proceeds from sales of marketable securities	5,509	7,252
Net cash used in investing activities	(83,938)	(42,701)
Cash flows from financing activities:
Distributions paid to common sharesholders	(10,543)	(6,852)
Distributions paid to OP unit holders	(783)	(1,544)
Proceeds from issuance of common shares	58,679	59,667
Payments of exchange offer costs	(249)	0
Proceeds from notes payable	0	2,905
Proceeds from revolving credit facility, net	33,956	0
Repayments of notes payable	(2,853)	(2,356)
Payments of loan origination costs	(1,546)	(374)
Net cash provided by financing activities	76,661	51,446
Net increase in cash and cash equivalents	2,644	15,069
Cash and cash equivalents at beginning of period	5,695	17,591
Cash and cash equivalents at end of period	$ 8,339	$ 32,660

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Accrued Rents and Accounts Receivable, Net (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Receivables [Abstract]
Tenant receivables	$ 3,767	$ 1,914
Accrued rents and other recoveries	5,393	5,505
Allowance for doubtful accounts	(1,983)	(1,366)
Total	$ 7,177	$ 6,053

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Real Estate

9 Months Ended

Sep. 30, 2012

Real Estate [Abstract]

Real Estate Disclosure

REAL ESTATE

Property Acquisitions. On September 21, 2012, we acquired Village Square at Dana Park, a property that meets our Community Centered Property strategy, for approximately $46.5 million in cash and net prorations. The 310,979 square foot center was 71% leased at the time of purchase and is located in the Mesa submarket of Phoenix, Arizona. In the same purchase, we also acquired an adjacent development parcel of 4.7 acres for approximately $4.0 million in cash.

On September 21, 2012, we acquired Fountain Square, a property that meets our Community Centered Property strategy, for approximately $15.4 million in cash and net prorations. The 118,209 square foot property was 76% leased at the time of purchase and is located in Scottsdale, Arizona.

On August 8, 2012, we acquired Paradise Plaza, a property that meets our Community Centered Property strategy, for approximately $16.3 million, including the assumption of a $9.2 million non-recourse loan, and cash of $7.1 million. Paradise Plaza was 100% occupied at the time of purchase with 125,898 of square feet of gross leasable area, and is located in Paradise Valley, Arizona, a suburb of Phoenix.

On May 29, 2012, we acquired the Shops at Pinnacle Peak, a property that meets our Community Centered Property strategy, for approximately $6.4 million in cash and net prorations. The 41,530 square foot center was 76% leased at the time of purchase and is located in North Scottsdale, Arizona.     

On December 28, 2011, we acquired the Shops at Starwood, a property that meets our Community Centered Property strategy, for approximately $15.7 million in cash and net prorations. The Class A center, which was 98% occupied at the time of purchase, contains 55,385 square feet of gross leasable area, and is located in Frisco, Texas, a northern suburb of Dallas. The Shops at Starwood has a complementary tenant mix of restaurants, fashion boutiques, salons and second-level office space.

On December 28, 2011, we acquired Starwood Phase III, a 2.73 acre parcel of undeveloped land adjacent to the Shops at Starwood for approximately $1.9 million, including a non-recourse loan we assumed for $1.4 million that is secured by the land, and cash of $0.5 million. The Phase III development site fronts the Dallas North Tollway within the Tollway Overlay District, which grants the highest allowed density of any zoning district.

On December 28, 2011, we acquired Pinnacle of Scottsdale Phase II, or Pinnacle Phase II, a 4.45 acre parcel of developed land adjacent to Pinnacle, described below, for approximately $1.0 million in cash and net prorations. Pinnacle Phase II has approximately 400 linear feet of frontage on Scottsdale Road, in North Scottsdale, Arizona and the potential for additional retail and office development.

On December 22, 2011, we acquired Phase I of Pinnacle of Scottsdale, or Pinnacle, a property that meets our Community Centered Property strategy, for approximately $28.8 million, including a non-recourse loan we assumed for $14.1 million that is secured by the property, and cash of $14.7 million. Pinnacle is a 100% occupied Class A Community Center with 113,108 square feet of gross leasable area in North Scottsdale, Arizona.

On August 16, 2011, we acquired Ahwatukee Plaza Shopping Center, a property that meets our Community Centered Property strategy, for approximately $9.3 million in cash and net prorations. The center contains 72,650 square feet of gross leasable area, located in the Ahwatukee Foothills neighborhood in south Phoenix, Arizona.

On August 8, 2011, we acquired Terravita Marketplace, a property that meets our Community Centered Property strategy, containing 102,733 square feet of gross leasable area, including of 51,434 square feet leased to two tenants pursuant to ground leases, located in Scottsdale, Arizona for approximately $16.1 million in cash and net prorations. Terravita Marketplace is adjacent to the gated golf course residential community of Terravita, which was developed by DelWebb Corporation/Pulte, with homes ranging in price from $250,000 to $1 million.

On June 28, 2011, we acquired Gilbert Tuscany Village, a property that meets our Community Centered Property strategy, containing 49,415 square feet of gross leasable area, located in Gilbert, Arizona for approximately $5.0 million in cash and net prorations. Gilbert Tuscany Village is surrounded by densely populated, high-end residential developments and is located approximately one mile from Banner Gateway Medical Center, a 60-acre medical complex that is partnering with MD Anderson to add a new 120,000 square foot cancer outpatient center.

On April 13, 2011, we acquired Desert Canyon Shopping Center, a property that meets our Community Centered Property strategy, for approximately $3.65 million in cash and net prorations. The center contains 62,533 square feet of gross leasable area, including 12,960 square feet leased to two tenants pursuant to ground leases, and is located in Mcdowell Mountain Ranch in northern Scottsdale, Arizona. Situated at a prime intersection at East McDowell Mountain Ranch Road and 105^th Street, Desert Canyon is the nearest retail and office space to McDowell Mountain Elementary and Junior High Schools. Located adjacent to the Sonora Mountain Desert Preserve, a lighted trail and jogging path wind directly into the Desert Canyon site and provide access from the surrounding upscale residential neighborhoods.

Property Dispositions. On July 22, 2011, we sold Greens Road Plaza, located in Houston, Texas, for $1.8 million in cash and net prorations. We have reinvested the proceeds from the sale of the 20,607 square foot property located in northeast Houston in Community Centered Properties in our target markets. As a result of the transaction, we recorded a gain on sale of property of $0.4 million for the year ended December 31, 2011.

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Unamortized Leasing Commissions and Loan Costs (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Leasing commissions	$ 5,378	$ 5,326
Deferred financing cost	4,463	2,916
Total cost	9,841	8,242
Less: leasing commissions accumulated amortization	(2,890)	(2,861)
Less: deferred financing cost accumulated amortization	(2,682)	(1,626)
Total cost, net of accumulated amortization	$ 4,269	$ 3,755

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Summary of Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2012

Accounting Policies [Abstract]

Basis of Consolidation

We are the sole general partner of the Operating Partnership and possess full legal control and authority over the operations of the Operating Partnership.  As of September 30, 2012 and December 31, 2011, we owned a majority of the partnership interests in the Operating Partnership.  Consequently, the accompanying consolidated financial statements include the accounts of the Operating Partnership.  All significant inter-company balances have been eliminated. Noncontrolling interest in the accompanying consolidated financial statements represents the share of equity and earnings of the Operating Partnership allocable to holders of partnership interests other than us.  Net income or loss is allocated to noncontrolling interests based on the weighted-average percentage ownership of the Operating Partnership during the period.  Issuances of additional common shares of beneficial interest, par value $0.001 per share, in Whitestone (the "common shares") and units of limited partnership interest in the Operating Partnership that are convertible into cash or, at our option, common shares on a one-for-one basis (the “OP units”) changes the ownership interests of both the noncontrolling interests and Whitestone.

Basis of Accounting

Our financial records are maintained on the accrual basis of accounting whereby revenues are recognized when earned and expenses are recorded when incurred.

Use of Estimates

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting period.  Significant estimates that we use include the estimated fair values of properties acquired, the estimated useful lives for depreciable and amortizable assets and costs, the estimated allowance for doubtful accounts and estimates supporting our impairment analysis for the carrying values of our real estate assets.  Actual results could differ from those estimates.

Reclassifications

We have reclassified certain prior period amounts in the accompanying consolidated financial statements in order to be consistent with the current period presentation.  These reclassifications had no effect on net income, total assets, total liabilities or equity. As of June 27, 2012, prior period Class A and Class B common shares have been consolidated into a single class of common shares. See additional discussion related to the reclassification in Note 10.

Marketable Securities

We classify our existing marketable equity securities as available-for-sale in accordance with the Financial Accounting Standards Board's ("FASB") Investments-Debt and Equity Securities guidance. These securities are carried at fair value with unrealized gains and losses reported in equity as a component of accumulated other comprehensive income or loss. The fair value of the marketable securities is determined using Level 1 inputs under FASB Accounting Standards Codification ("ASC") 820, "Fair Value Measurements and Disclosures." Level 1 inputs represent quoted prices available in an active market for identical investments as of the reporting date. Gains and losses on securities sold are based on the specific identification method, and are reported as a component of interest, dividend and other investment income.

Derivative Instruments and Hedging Activities

On August 8, 2012, as part of our acquisition of Paradise Plaza (see Note 15), we assumed a $9.2 million variable rate note (see Note 6). The note included an interest rate swap that had a fixed interest rate of 5.72%. We have designated the interest rate swap as a cash flow hedge with the effective portion of the changes in fair value recorded in comprehensive income (loss) and subsequently reclassified into earnings in the period that the hedged transaction affects earnings. The ineffective portion of the change in fair value, if any, is recognized directly in earnings. As of September 30, 2012, we consider our cash flow hedge to be highly effective. Our cash flow hedge is determined using Level 2 inputs under ASC 820. Level 2 inputs represent quoted prices in active markets for similar assets or liabilities; quoted prices in markets that are not active; and model-derived valuations whose inputs are observable.

Development Properties

Land, buildings and improvements are recorded at cost. Expenditures related to the development of real estate are carried at cost which includes capitalized carrying charges and development costs. Carrying charges, primarily interest, real estate taxes, loan fees, and direct and indirect development costs related to buildings under construction, are capitalized as part of construction in progress. The capitalization of such costs ceases when the property, or any completed portion, becomes available for occupancy.

Share-Based Compensation

From time to time, we award nonvested restricted common share awards or restricted common share unit awards, which may be converted into common shares, to executive officers and employees under our 2008 Long-Term Equity Incentive Ownership Plan (the “2008 Plan”).  The vast majority of the awarded shares and units vest when certain performance conditions are met.  We recognize compensation expense when achievement of the performance conditions is probable based on management's most recent estimates using the fair value of the shares as of the grant date.

Noncontrolling Interests

Noncontrolling interests is the portion of equity in a subsidiary not attributable to a parent.  The ownership interests not held by the parent are considered noncontrolling interests.  Accordingly, we have reported noncontrolling interests in equity on the consolidated balance sheets but separate from Whitestone's equity.  On the consolidated statements of operations, subsidiaries are reported at the consolidated amount, including both the amount attributable to Whitestone and noncontrolling interests.  Consolidated statements of changes in equity are included for quarterly financial statements, including beginning balances, activity for the period and ending balances for shareholders' equity, noncontrolling interests and total equity.

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Supplemental Cash Flow Data (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Supplemental disclosure of cash flow information:
Cash paid for interest	$ 5,250	$ 4,271
Cash paid for taxes	225	215
Non cash investing and financing activities:
Disposal of fully depreciated real estate	523	162
Financed insurance premiums	856	649
Value of shares issued under dividend reinvestment plan	68	0
Accrued offering costs	85	0
Acquired interest rate swap	1,901	0
Debt discount on acquired note payable	(1,329)	0
Value of Class B shares exchanged for OP units	0
Change in fair value of available-for-sale securities	891	(1,881)
Change in fair value of cash flow hedge	(9)	0
Parent [Member]
Non cash investing and financing activities:
Value of Class B shares exchanged for OP units	$ 6,224	$ 0

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Consolidated Balance Sheets Parenthetical (USD $)	Sep. 30, 2012	Dec. 31, 2011
Stockholders' Equity:
Preferred shares, par value per share (in dollars per share)	$ 0.001	$ 0.001
Preferred shares, shares authorized (in shares)	50,000,000	50,000,000
Preferred shares, shares issued (in shares)	0	0
Preferred shares, shares outstanding (in shares)	0	0
Common shares, par value per share (in dollars per share)	$ 0.001	$ 0.001
Common shares, authorized (in shares)	400,000,000	400,000,000
Common shares, issued (in shares)	16,839,609	16,839,609
Common shares, outstanding (in shares)	11,437,855	11,437,855
Common Stock [Member]
Stockholders' Equity:
Common shares, outstanding (in shares)	16,839,609	11,437,855

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Equity

9 Months Ended

Sep. 30, 2012

Stockholders' Equity Note [Abstract]

Equity

EQUITY

Reclassification of Common Shares

On June 27, 2012, we filed with the State Department of Assessments and Taxation of Maryland amendments to our declaration of trust that (i) reclassified each issued and unissued Class A common share of beneficial interest, par value $0.001 per share (the "Class A common shares") into one Class B common share of beneficial interest, par value $0.001 per share (the "Class B common shares") and (ii) changed the designation of all of the Class B common shares to “common shares.” The amendment setting forth the reclassification of the Class A common shares into Class B common shares was approved by our shareholders at the 2012 annual meeting of shareholders held on May 22, 2012. The amendment approving the redesignation of the Class B common shares to common shares was approved by our board of trustees and did not require shareholder approval.

Common Shares

Following the reclassification of our common shares on June 27, 2012, as described above, under our declaration of trust, as amended, we have authority to issue up to 400,000,000 common shares of beneficial interest, $0.001 par value per share, and up to 50,000,000 preferred shares of beneficial interest, $0.001 par value per share.

Equity Offering

On August 28, 2012, we completed the sale of 4,830,000 common shares, $0.001 par value per share, including 630,000 common shares pursuant to the exercise of the underwriters' over-allotment option, at a price to the public of $12.80 per share. Total net proceeds from the offering, including over-allotment shares, and after deducting the underwriting discount and offering expenses, were approximately $58.7 million, which we intend to use for general corporate purposes, including property acquisitions, debt repayment, capital expenditures, the expansion, redevelopment and/or re-tenanting of properties in our portfolio, working capital and other general purposes.

Operating Partnership Units

Substantially all of our business is conducted through our Operating Partnership.  We are the sole general partner of the Operating Partnership.  As of September 30, 2012, we owned a 95.5% interest in the Operating Partnership.

Limited partners in the Operating Partnership holding OP units have the right to convert their OP units into cash or, at our option, common shares at a ratio of one OP unit for one common share.  Distributions to OP unit holders are paid at the same rate per unit as distributions per share to Whitestone common shares.  As of September 30, 2012 and December 31, 2011, there were 17,504,987 and 12,677,969 OP units outstanding, respectively.  We owned 16,718,796 and 11,317,042 OP units as of September 30, 2012 and December 31, 2011, respectively. The balance of the OP units is owned by third parties, including certain of our trustees.  Our weighted-average share ownership in the Operating Partnership was approximately 94.6% and 85.7% for the three months ended September 30, 2012 and 2011, respectively, and 93.4% and 82.2% for the nine months ended September 30, 2012 and September 30, 2011, respectively.

Distributions

The following table summarizes the cash distributions paid or payable to holders of common shares and to holders of noncontrolling OP units during each quarter during 2011 and the nine months ended September 30, 2012 (in thousands, except per share/unit data):

	Common Shares (1)				Noncontrolling OP Unit Holders				Total
Quarter Paid	Distributions Per Common Share		Total Amount Paid		Distributions Per OP Unit		Total Amount Paid		Total Amount Paid
2012
Third Quarter	$	0.2850	$	3,859	$	0.2850	$	224	$	4,083
Second Quarter	0.2850		3,362		0.2850		258		3,620
First Quarter	0.2850		3,322		0.2850		301		3,623
Total	$	0.8550	$	10,543	$	0.8550	$	783	$	11,326
2011
Fourth Quarter	$	0.2850	$	3,193	$	0.2850	$	430	$	3,623
Third Quarter	0.2850		3,115		0.2850		514		3,629
Second Quarter	0.2850		2,121		0.2850		515		2,636
First Quarter	0.2850		1,616		0.2850		515		2,131
Total	$	1.1400	$	10,045	$	1.1400	$	1,974	$	12,019

⁽¹⁾  Effective June 27, 2012, each outstanding Class A common share was reclassified into one Class B common share, and the Class B common shares were redesignated as "common shares."

New York Stock Exchange Listing

On June 29, 2012, we transferred the listing of our common shares to the New York Stock Exchange under our existing ticker symbol "WSR." As a result of the transfer, we voluntarily delisted our common shares from the NYSE MKT LLC (“NYSE MKT”) effective June 28, 2012.

Exchange Offers

On September 2, 2011, we commenced an offer to exchange Class B common shares on a one-for-one basis for (i) up to 867,789 outstanding Class A common shares; and (ii) up to 453,642 outstanding OP units (the “First Exchange Offer”). The First Exchange Offer expired on October 3, 2011, and 867,789 Class A common shares and 453,642 OP units were accepted for exchange.

On December 9, 2011, we commenced a second offer to exchange Class B common shares on a one-for-one basis for (i) up to 867,789 outstanding Class A common shares; and (ii) up to 453,642 outstanding OP units (the “Second Exchange Offer”). The Second Exchange Offer expired on January 11, 2012, and 867,789 Class A common shares and 453,580 OP units were accepted for exchange.

On May 10, 2012, we commenced a third offer to exchange Class B common shares on a one-for-one basis for (i) up to 867,789 outstanding Class A common shares; and (ii) up to 453,642 outstanding OP units (the “Third Exchange Offer”). The Third Exchange Offer expired on June 8, 2012, and 426,986 Class A common shares and 121,156 OP units were accepted for exchange.

See Note 16 for a description of our registration of additional common shares subsequent to the quarter ending September 30, 2012.

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Document and Entity Information	9 Months Ended
	Sep. 30, 2012	Nov. 06, 2012
Entity Information [Line Items]
Entity Registrant Name	Whitestone REIT
Entity Central Index Key	0001175535
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Document Type	10-Q
Document Period End Date	Sep. 30, 2012
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding		16,844,880

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Commitments and Contingencies

9 Months Ended

Sep. 30, 2012

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

COMMITMENTS AND CONTINGENCIES

We are subject to various legal proceedings and claims that arise in the ordinary course of business.  These matters are generally covered by insurance.  While the resolution of these matters cannot be predicted with certainty, management believes the final outcome of such matters will not have a material adverse effect on our consolidated financial statements.

Executive Relocation.  On July 9, 2010, upon the unanimous recommendation of our Compensation Committee of our board of trustees, we entered into an arrangement with Mr. Mastandrea with respect to the disposition of his residence in Cleveland, Ohio. Mr. Mastandrea listed the residence in the second half of 2007 and has had no offers. In the meantime, Mr. Mastandrea has continued to pay for security, taxes, insurance and maintenance expenses related to the residence. In May 2010, we engaged a professional relocation firm to market the home and assist in moving the Mastandrea family to Houston. Since the engagement of the relocation firm, no offers on the home have been received. On August 6, 2012, upon the unanimous recommendation of our Compensation Committee to our board of trustees, the arrangement with Mr. Mastandrea with respect to the disposition of his residence in Cleveland, Ohio was amended. See Note 9 above for a description of the amendment to the arrangement with Mr. Mastandrea.

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Consolidated Statements of Operations and Comprehensive Income (Loss) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Property revenues
Rental revenues	$ 8,992	$ 7,086	$ 25,643	$ 20,462
Other revenues	2,626	1,705	7,388	4,485
Total property revenues	11,618	8,791	33,031	24,947
Property expenses
Property operation and maintenance	2,969	2,376	8,080	6,328
Real estate taxes	1,629	1,262	4,442	3,390
Total property expenses	4,598	3,638	12,522	9,718
Other expenses (income)
General and administrative	1,888	1,495	5,392	4,737
Depreciation and amortization	3,112	2,161	8,319	6,126
Interest expense	1,815	1,430	5,261	4,277
Interest, dividend and other investment income	(121)	(264)	(274)	(379)
Total other expense	6,694	4,822	18,698	14,761
Income before loss on sale or disposal of assets and income taxes	326	331	1,811	468
Provision for income taxes	(77)	(54)	(212)	(165)
Gain (loss) on sale or disposal of assets	(77)	1	(105)	(17)
Income before gain on sale of property	172	278	1,494	286
Gain on sale of property	0	397	0	397
Net income	172	675	1,494	683
Less: Net income attributable to noncontrolling interests	9	97	99	122
Net income attributable to Whitestone REIT	163	578	1,395	561
Basic and Diluted Earnings Per Share:
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares	$ 0.01	$ 0.05	$ 0.11	$ 0.07
Weighted average number of common shares outstanding:
Basic (in shares)	13,842	10,797	12,409	8,285
Diluted (in shares)	13,961	10,809	12,526	8,300
Dividends declared per common share / OP unit (in dollars per share)	$ 0.2850	$ 0.2850	$ 0.8550	$ 0.8550
Consolidated Statements of Comprehensive Income (Loss)
Net income	172	675	1,494	683
Other comprehensive gain (loss)
Unrealized loss on cash flow hedging activities	(9)	0	(9)	0
Unrealized gain (loss) on available-for-sale marketable securities	92	(1,672)	891	(1,881)
Comprehensive income (loss)	255	(997)	2,376	(1,198)
Less: Comprehensive income (loss) attributable to noncontrolling interests	14	(143)	158	(214)
Comprehensive income (loss) attributable to Whitestone REIT	$ 241	$ (854)	$ 2,218	$ (984)

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Unamortized Leasing Commissions and Loan Costs

9 Months Ended

Sep. 30, 2012

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Unamortized Leasing Comissions and Loan Costs

UNAMORTIZED LEASING COMMISSIONS AND LOAN COSTS

Costs which have been deferred consist of the following (in thousands):

	September 30, 2012			December 31, 2011
Leasing commissions	$	5,378		$	5,326
Deferred financing cost	4,463			2,916
Total cost	9,841			8,242
Less: leasing commissions accumulated amortization	(2,890		)	(2,861		)
Less: deferred financing cost accumulated amortization	(2,682		)	(1,626		)
Total cost, net of accumulated amortization	$	4,269		$	3,755

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Accrued Rents and Accounts Receivable, Net

9 Months Ended

Sep. 30, 2012

Receivables [Abstract]

Accrued Rent and Accounts Receivable, Net

ACCRUED RENTS AND ACCOUNTS RECEIVABLE, NET

Accrued rents and accounts receivable, net consists of amounts accrued, billed and due from tenants, allowance for doubtful accounts and other receivables as follows (in thousands):

	September 30, 2012			December 31, 2011
Tenant receivables	$	3,767		$	1,914
Accrued rents and other recoveries	5,393			5,505
Allowance for doubtful accounts	(1,983		)	(1,366		)
Total	$	7,177		$	6,053

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Subsequent Events

9 Months Ended

Sep. 30, 2012

Subsequent Events [Abstract]

Subsequent Events

SUBSEQUENT EVENTS

On October 9, 2012, we filed a prospectus supplement, relating to our effective universal shelf registration statement on Form S-3, covering the issuance of up to 786,191 of our common shares, par value $0.001 per share, to certain holders of OP units in the Operating Partnership. The OP units may be issued to the extent that OP unit holders tender their OP units for redemption in accordance with the terms of the limited partnership agreement of the Operating Partnership and we elect, at our sole discretion, to issue common shares to the tendering OP unit holders.

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Incentive Share Plan

9 Months Ended

Sep. 30, 2012

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Employee Incentive Share Plan

INCENTIVE SHARE PLAN

On July 29, 2008, our shareholders approved the 2008 Plan. On December 22, 2010, our board of trustees amended the 2008 Plan to allow for awards in or related to Class B common shares pursuant to the 2008 Plan. On June 27, 2012, our Class B common shares were redesignated as "common shares." The 2008 Plan, as amended, provides that awards may be made with respect to common shares of Whitestone or OP units, which may be converted into cash or, at our option, common shares of Whitestone. The maximum aggregate number of common shares that may be issued under the 2008 Plan is increased upon each issuance of common shares by Whitestone so that at any time the maximum number of shares that may be issued under the 2008 Plan shall equal 12.5% of the aggregate number of common shares of Whitestone and OP units issued and outstanding (other than shares and/or OP units issued to or held by Whitestone).

The Compensation Committee of our board of trustees administers the 2008 Plan, except with respect to awards to non-employee trustees, for which the 2008 Plan is administered by our board of trustees.  The Compensation Committee is authorized to grant share options, including both incentive share options and non-qualified share options, as well as share appreciation rights, either with or without a related option. The Compensation Committee is also authorized to grant restricted common shares, restricted common share units, performance awards and other share-based awards. 

A summary of the share-based incentive plan activity as of and for the nine months ended September 30, 2012 is as follows:

	Shares		Weighted-Average Grant Date Fair Value (1)
Non-vested at January 1, 2012	504,023		$	12.48
Granted	99,700		13.03
Vested	(15,041	)	13.84
Forfeited	(46,302	)	12.62
Non-vested as of September 30, 2012	542,380		12.53
Available for grant at September 30, 2012	1,882,240

⁽¹⁾  The fair value of the common shares granted before trading of the common shares commenced on the NYSE MKT on August 26, 2010 were determined based on observable market transactions occurring near the date of the grants. The fair value of the common shares granted subsequent to August 26, 2010 was determined based on the fair value at the date of grant.

A summary of our non-vested and vested shares activity for the nine months ended September 30, 2012 and years ended December 31, 2011, 2010 and 2009 is presented below:

	Shares Granted			Shares Vested
	Non-Vested Shares Issued	Weighted-Average Grant-Date Fair Value		Vested Shares		Total Vest-Date Fair Value
						(in thousands)
Nine months ended September 30, 2012	99,700	$	13.03	(15,041	)	$	208
Year ended December 31, 2011	—	—		(5,169	)	80
Year ended December 31, 2010	31,858	14.09		(55,699	)	695
Year ended December 31, 2009	600,731	12.37		—		—

Total compensation recognized in earnings for share-based payments was $118,000 and $78,000 for the three months ended September 30, 2012 and 2011, respectively, and $384,000 and $233,000 for the nine months ended September 30, 2012 and 2011, respectively. With the acquisitions during the three months ended September 30, 2012 (see Note 15), we expect additional performance-based shares to vest due to the achievement of certain Company-wide performance goals. As a result, at September 30, 2012, there was approximately $1,376,000 in unrecognized compensation cost related to outstanding non-vested performance-based shares, which is expected to vest over a period of fifteen months and approximately $90,000 in unrecognized compensation cost related to outstanding non-vested time-based shares, which are expected to be recognized over a weighted-average period of approximately one year. The fair value of the shares granted during the nine months ended September 30, 2012 was determined using quoted prices available on the date of grant.

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Income Taxes

9 Months Ended

Sep. 30, 2012

Income Tax Disclosure [Abstract]

Income Taxes

INCOME TAXES

Federal income taxes are not provided because we intend to continue to and believe we qualify as a REIT under the provisions of the Internal Revenue Code (the "Code") and because we have distributed and intend to continue to distribute all of our taxable income to our shareholders.  Our shareholders include their proportionate taxable income in their individual tax returns.  As a REIT, we must distribute at least 90% of our real estate investment trust taxable income to our shareholders and meet certain income sources and investment restriction requirements.  In addition, REITs are subject to a number of organizational and operational requirements.  If we fail to qualify as a REIT in any taxable year, we will be subject to federal income tax (including any applicable alternative minimum tax) on our taxable income at regular corporate tax rates.

During 2010, we discovered that we may have inadvertently violated the “5% asset test,” as set forth in Section 856(c)(4)(B)(iii)(I) of the Code, for the quarter ended March 31, 2009 as a result of utilizing a certain cash management arrangement with a commercial bank. If our investment in a commercial paper investment sweep account through such cash management agreement is not treated as cash, and is instead treated as a security of a single issuer for purposes of the “5% asset test,” then we failed the “5% asset test” for the first quarter of our 2009 taxable year. We believe, however, that if we failed the “5% asset test,” our failure would be considered due to reasonable cause and not willful neglect and, therefore, we would not be disqualified as a REIT for our 2009 taxable year. We would be, however, subject to certain reporting requirements and a tax equal to the greater of $50,000 or 35% of the net income from the commercial paper investment account during the period in which we failed to satisfy the “5% asset test.” The amount of such tax is $50,000, and we paid such tax on April 27, 2010.     

If the IRS were to assert that we failed the “5% asset test” for the first quarter of our 2009 taxable year and that such failure was not due to reasonable cause, and the courts were to sustain that position, our status as a REIT would terminate as of December 31, 2008. We would not be eligible to again elect REIT status until our 2014 taxable year. Consequently, we would be subject to federal income tax on our taxable income at regular corporate rates without the benefit of the dividends-paid deduction, and our cash available for distributions to shareholders would be reduced.

Taxable income differs from net income for financial reporting purposes principally due to differences in the timing of recognition of interest, real estate taxes, depreciation and rental revenue. 

We are subject to the Texas Margin Tax, which is computed by applying the applicable tax rate (1% for us) to the profit margin, which generally will be determined for us as total revenue less a 30% standard deduction.  Although House Bill 3 states that the Texas Margin Tax is not an income tax, SFAS No. 109, “Accounting for Income Taxes” (“SFAS No. 109”) which is codified in FASB ASC 740, "Income Taxes" (“ASC 740”) applies to the Texas Margin Tax.  For the three months ended September 30, 2012 and 2011, we recognized $61,000 and $54,000 in margin tax provision, respectively, and for the nine months ended September 30, 2012 and 2011, we recognized $184,000 and $164,000, respectively.

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Debt

9 Months Ended

Sep. 30, 2012

Debt Disclosure [Abstract]

Debt Disclosure

DEBT

Debt consisted of the following as of the dates indicated (in thousands):

Description	September 30, 2012		December 31, 2011
Fixed rate notes
$1.4 million 5.00% Note, due 2012	$	1,363	$	1,318
$14.1 million 5.695% Note, due 2013	13,923		14,110
$3.0 million 6.00% Note, due 2021 (1)	2,952		2,978
$10.0 million 6.04% Note, due 2014	9,189		9,326
$1.5 million 6.50% Note, due 2014	1,451		1,471
$11.2 million 6.52% Note, due 2015	10,648		10,763
$21.4 million 6.53% Notes, due 2013	19,034		19,524
$24.5 million 6.56% Note, due 2013	23,254		23,597
$9.9 million 6.63% Notes, due 2014	9,001		9,221
$0.7 million 2.97% Note, due 2012	193		23
Floating rate notes
Unsecured line of credit, LIBOR plus 2.75% to 3.75%, due 2015	45,000		11,000
$9.2 million, Prime Rate less 2.00%, due 2017	7,861		—
$26.9 million, LIBOR plus 2.86% Note, due 2013	23,947		24,559
	$	167,816	$	127,890

⁽¹⁾  The 6.00% interest rate is fixed through March 30, 2016. On March 31, 2016 the interest rate will reset to the rate of interest for a five-year balloon note with a thirty-year amortization as published by the Federal Home Loan Bank.

As of September 30, 2012, our $122.6 million in secured debt was collateralized by 27 properties with a carrying value of $162.5 million.  Our loans contain restrictions that would require prepayment penalties for the acceleration of outstanding debt and are secured by deeds of trust on certain of our properties and by assignment of the rents and leases associated with those properties.  As of September 30, 2012, we were in compliance with all loan covenants.

On August 8, 2012, we assumed a $9.2 million variable rate note as part of our acquisition of Paradise Plaza (See Note 15). The variable rate is based on the Prime Rate less 2.00% and matures on December 27, 2017. We consider the variable rate to be below-market and have imputed an interest rate of 4.13%, which we consider to be an appropriate market rate. As a result, we recorded a discount on the note of $1.3 million, which will amortize into interest expense over the life of the loan. See Note 2 to the accompanying consolidated financial statements for a discussion of the interest rate swap included with this note.

Our $125 million unsecured revolving credit facility (the “Credit Facility”), which is available to us for acquisitions of properties and and working capital, is our primary source of additional credit. As of September 30, 2012, $45.0 million was drawn on the Credit Facility, and our borrowing capacity was $80.0 million, assuming use of the proceeds to acquire properties, or repayment of debt on properties, that are eligible to be included in the unsecured borrowing base. The Credit Facility bears interest at LIBOR plus 2.75% to 3.75%, and matures on February 27, 2015. As of September 30, 2012, the interest rate was 3.00%.

We are the guarantor for funds borrowed by the Operating Partnership under the Credit Facility. The Credit Facility contains customary terms and conditions, including, without limitation, affirmative and negative covenants such as information reporting requirements, maximum secured indebtedness to total asset value, minimum EBITDA (earnings before interest, taxes, depreciation, amortization and extraordinary items) to fixed charges, minimum property net operating income to total indebtedness and maintenance of net worth. The Credit Facility also contains customary events of default with customary notice and cure, including, without limitation, nonpayment, breach of covenant, material misrepresentation of representations and warranties, cross-default to other major indebtedness, change of control, bankruptcy and loss of REIT tax status. As of September 30, 2012, we were in compliance with all covenants.

Scheduled maturities of our outstanding debt as of September 30, 2012 were as follows (in thousands):

Year	Amount Due
2012	$	2,291
2013	80,292
2014	19,171
2015	55,317
2016	73
Thereafter	10,672
Total	$	167,816

We will have approximately $14 million of debt maturing in June 2013 and approximately $66 million maturing in October and November 2013. The majority of this debt is with insurance companies and was entered into in late 2008. We have begun renewal discussions with our current lenders and expect to renew this debt with our current lenders or new lenders at rates and terms similar or better than our current rates and terms. We also have availability under our Credit Facility should we be unable to obtain similar or better financing from our current lenders or new lenders.

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Earnings (Loss) Per Share

9 Months Ended

Sep. 30, 2012

Earnings Per Share [Abstract]

Earnings Per Share

EARNINGS PER SHARE

Basic earnings per share for our common shareholders is calculated by dividing income from continuing operations excluding amounts attributable to unvested restricted shares and the net income attributable to non controlling interests by our weighted-average common shares outstanding during the period.  Diluted earnings per share is computed by dividing the net income attributable to common shareholders excluding amounts attributable to unvested restricted shares and the net income attributable to non controlling interests by the weighted-average number of common shares including any dilutive unvested restricted shares.

Certain of our performance-based restricted common shares are considered participating securities which require the use of the two-class method for the computation of basic and diluted earnings per share.   During the three months ended September 30, 2012 and 2011, 786,191 and 1,814,569 OP units, respectively, were excluded from the calculation of diluted earnings per share because their effect would be anti-dilutive, and during the nine months ended September 30, 2012 and 2011, 886,407 and 1,814,569 OP units, respectively, were excluded from the calculation of diluted earnings per share because their effect would be anti-dilutive.

For the three months ended September 30, 2012 and 2011, distributions of $45,000 and $53,000, respectively, were made to holders of certain restricted common shares, $40,000 and $49,000 of which were charged against earnings. For the nine months ended September 30, 2012 and 2011, distributions of $148,000 and $160,000, respectively, were made to holders of certain restricted common shares, $137,000 and $147,000 of which were charged against earnings. See Note 12 for information related to restricted common shares under the 2008 Plan.

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2012			2011			2012			2011
(in thousands, except per share data)
Numerator:
Net income	$	172		$	675		$	1,494		$	683
Less: Net income attributable to noncontrolling interests	(9		)	(97		)	(99		)	(122		)
Distributions paid on unvested restricted shares	(5		)	(4		)	(11		)	(13		)
Undistributed earnings attributable to unvested restricted shares	—			—			—			—
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares	$	158		$	574		$	1,384		$	548
Denominator:
Weighted average number of common shares - basic	13,842			10,797			12,409			8,285
Effect of dilutive securities:
Unvested restricted shares	119			12			117			15
Weighted average number of common shares - dilutive	13,961			10,809			12,526			8,300
Earnings Per Share:
Basic:
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares	$	0.01		$	0.05		$	0.11		$	0.07
Diluted:
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares	$	0.01		$	0.05		$	0.11		$	0.07

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Related Party Transactions

9 Months Ended

Sep. 30, 2012

Related Party Transactions [Abstract]

Related Party Transactions

RELATED PARTY TRANSACTIONS

Executive Relocation. On July 9, 2010, upon the unanimous recommendation of our Compensation Committee of our board of trustees, we entered into an arrangement with James C. Mastandrea, our Chairman, President and Chief Executive Officer, with respect to the disposition of his residence in Cleveland, Ohio. Mr. Mastandrea listed the residence in the second half of 2007 and has had no offers. In the meantime, Mr. Mastandrea has continued to pay for security, taxes, insurance and maintenance expenses related to the residence. In May 2010, we engaged a professional relocation firm to market the home and assist in moving the Mastandrea family to Houston. Since the engagement of the relocation firm, no offers on the home have been received. On August 6, 2012, upon the unanimous recommendation of our Compensation Committee to our board of trustees, the arrangement with Mr. Mastandrea with respect to the disposition of his residence in Cleveland, Ohio was amended. The following summarizes the amended arrangement:

• Reimbursement of Mr. Mastandrea of the amount, if any, by which the sales price for the sale of the residence is less than $2,450,000 (the “Sales Price Shortfall”) upon sale of the residence (the “Shortfall Reimbursement”);

• Payment to Mr. Mastandrea of an amount equal to the amount of any Shortfall Reimbursement divided by the net difference of one (1) minus the maximum U.S. federal income tax rate in effect at the time of the sale of the residence, less the Shortfall Reimbursement (the “Tax Payment”);

• Payment of the sum of the Shortfall Reimbursement and Tax Payment (the “Lump Sum Payment”) as follows:

(1) Cash within five (5) business days after the sale of the residence (the “Cash Payment”); and (2) Company common shares, with the number of common shares being equal to the Lump Sum Payment, minus the Cash Payment, divided by the last sale price of the common shares on the New York Stock Exchange on the day of the sale of the residence, with the proportion of the Lump Sum Payment to be paid in cash and common shares being determined upon agreement between Mr. Mastandrea and the Compensation Committee at the time of the sale of the residence;

• Payment of housing expenses in Houston, Texas for a period of one (1) year following the sale of the residence; and

• Payment of out of pocket moving costs including packing, temporary storage, transportation and moving supplies.

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Marketable Securities (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 1,811		$ 1,811		$ 6,460
Gains in Accumulated Other Comprehensive Income	0		0		0
Losses in Accumulated Other Comprehensive Income	(438)		(438)		(1,329)
Estimated Fair Value	1,373		1,373		5,131
Proceeds from sales of marketable securities	1,583	6,343	5,509	7,252
Gross realized gains on sale of marketable securities	78	263	152	302
Gross realized losses on sale of marketable securities	0	109	42	110
Exchange Traded Funds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost					301
Gains in Accumulated Other Comprehensive Income					0
Losses in Accumulated Other Comprehensive Income					(37)
Estimated Fair Value					264
Real Estate Sector Mutual Funds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost					351
Gains in Accumulated Other Comprehensive Income					0
Losses in Accumulated Other Comprehensive Income					(55)
Estimated Fair Value					296
Real Estate Common Stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	1,811		1,811		5,808
Gains in Accumulated Other Comprehensive Income	0		0		0
Losses in Accumulated Other Comprehensive Income	(438)		(438)		(1,237)
Estimated Fair Value	$ 1,373		$ 1,373		$ 4,571

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Segment Information

9 Months Ended

Sep. 30, 2012

Segment Reporting [Abstract]

Segment Information

SEGMENT INFORMATION

Historically, our management has not differentiated results of operations by property type or location and, therefore, does not present segment information.

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Accrued Rents and Accounts Receivable, Net (Tables)

9 Months Ended

Sep. 30, 2012

Receivables [Abstract]

Schedule of Accrued Rent and Accounts Receivable, Net

Accrued rents and accounts receivable, net consists of amounts accrued, billed and due from tenants, allowance for doubtful accounts and other receivables as follows (in thousands):

	September 30, 2012			December 31, 2011
Tenant receivables	$	3,767		$	1,914
Accrued rents and other recoveries	5,393			5,505
Allowance for doubtful accounts	(1,983		)	(1,366		)
Total	$	7,177		$	6,053

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Subsequent Events (Details) (USD $)	Sep. 30, 2012	Aug. 28, 2012	Jun. 27, 2012	Dec. 31, 2011	Oct. 09, 2012 OP Units [Member] Subsequent Event [Member]
Subsequent Event [Line Items]
Common shares, authorized (in shares)	400,000,000		400,000,000	400,000,000	786,191
Common shares, par value per share (in dollars per share)	$ 0.001	$ 0.001	$ 0.001	$ 0.001	$ 0.001

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Income Taxes (Details) (USD $)		12 Months Ended	3 Months Ended		9 Months Ended
	Apr. 27, 2010	Dec. 31, 2010 Internal Revenue Service (IRS) [Member]	Sep. 30, 2012 Texas [Member]	Sep. 30, 2011 Texas [Member]	Sep. 30, 2012 Texas [Member]	Sep. 30, 2011 Texas [Member]
Income Taxes [Line Items]
Minimum amount of tax penalty		$ 50,000
Minimum amount of tax penalty, percentage		35.00%
Tax paid as a result of violation of 5% asset test	50,000
Applicable tax rate used to determine state margin tax					1.00%
Standard deduction rate used to determine state margin tax					30.00%
Margin tax provision recognized			$ 61,000	$ 54,000	$ 184,000	$ 164,000

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Consolidated Statement of Changes in Equity (USD $) In Thousands, except Share data, unless otherwise specified	Total	Parent [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Noncontrolling Interests [Member]
Beginning Balance at Dec. 31, 2011	$ 130,707	$ 115,958	$ 10	$ 158,127	$ (41,060)	$ (1,119)	$ 14,749
Beginning Balance (in units), at Dec. 31, 2011							1,361,000
Beginning Balance (in shares), at Dec. 31, 2011	11,437,855		11,437,855
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exchange of noncontrolling interest OP units and Class A common shares for Class B common shares (shares)			575,000				575,000
Exchange of noncontrolling interest OP units and Class A common shares for Class B common shares (value)	0	6,106		6,224		(118)	(6,106)
Exchange offer costs	(334)	(334)		(334)
Issuance of shares, net of costs (shares)			4,830,000
Issuance of shares, net of costs (value)	58,679	58,666	5	58,674		(13)	13
Dividend reinvestment plan (shares)			5,000
Dividend reinvestment plan (value)	68	68		68
Share-based compensation (shares)			(8,000)
Share-based compensation (value)	248	248		248
Distributions	(12,646)	(12,021)			(12,021)		(625)
Unrealized loss on change in value of cash flow hedge	(9)	(9)				(9)
Unrealized gain on change in fair value of available-for-sale marketable securities	891	832				832	59
Net income	1,494	1,395			1,395		99
Ending Balance at Sep. 30, 2012	$ 179,098	$ 170,909	$ 15	$ 223,007	$ (51,686)	$ (427)	$ 8,189
Ending Balance (in units), at Sep. 30, 2012							786,000
Ending Balance (in shares), at Sep. 30, 2012	11,437,855		16,839,609

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Marketable Securities

9 Months Ended

Sep. 30, 2012

Investments, Debt and Equity Securities [Abstract]

Marketable Securities

MARKETABLE SECURITIES

All of our marketable securities were classified as available-for-sale securities as of September 30, 2012 and December 31, 2011. Available-for-sale securities consisted of the following (in thousands):

	September 30, 2012
	Amortized Cost		Gains in Accumulated Other Comprehensive Income		Losses in Accumulated Other Comprehensive Income			Estimated Fair Value
Real estate common stock	$	1,811	$	—	$	(438	)	$	1,373
Total available-for-sale securities	$	1,811	$	—	$	(438	)	$	1,373

	December 31, 2011
	Amortized Cost		Gains in Accumulated Other Comprehensive Income		Losses in Accumulated Other Comprehensive Income			Estimated Fair Value
Exchange-traded fund	$	301	$	—	$	(37	)	$	264
Real estate sector mutual funds	351		—		(55		)	296
Real estate common stock	5,808		—		(1,237		)	4,571
Total available-for-sale securities	$	6,460	$	—	$	(1,329	)	$	5,131

During the three and nine months ended September 30, 2012, available-for-sale securities were sold for total proceeds of $1,583,000 and $5,509,000, respectively. The gross realized gains and losses on these sales during the three months ended September 30, 2012 totaled $78,000 and $0, respectively, and the gross realized gains and losses on the sales during the nine months ended September 30, 2012 totaled $152,000 and $42,000, respectively. During the three and nine months ended September 30, 2011, available-for-sale securities were sold for total proceeds of $6,343,000 and $7,252,000, respectively. Gross realized gains or losses on the sales recognized during the three months ended September 30, 2011 were $263,000 and $109,000, respectively, and the gross realized gains and losses on the sales during the nine months ended September 30, 2011 totaled $302,000 and $110,000, respectively.

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Unamortized Leasing Commissions and Loan Costs (Tables)

9 Months Ended

Sep. 30, 2012

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Schedule of Unamortized Leasing Comissions and Loan Costs

Costs which have been deferred consist of the following (in thousands):

	September 30, 2012			December 31, 2011
Leasing commissions	$	5,378		$	5,326
Deferred financing cost	4,463			2,916
Total cost	9,841			8,242
Less: leasing commissions accumulated amortization	(2,890		)	(2,861		)
Less: deferred financing cost accumulated amortization	(2,682		)	(1,626		)
Total cost, net of accumulated amortization	$	4,269		$	3,755

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Debt (Schedule of Debt) (Details) (USD $)	9 Months Ended		12 Months Ended
	Sep. 30, 2012		Dec. 31, 2011
Debt Instrument [Line Items]
Notes payable	$ 167,816,000		$ 127,890,000
Fixed Rate Notes [Member] | Five Point Zero Zero Percent Note Due 2012 [Member]
Debt Instrument [Line Items]
Notes payable	1,363,000		1,318,000
Stated interest rate	5.00%		5.00%
Face amount of debt	1,400,000		1,400,000
Fixed Rate Notes [Member] | Five Point Six Nine Five Percent Note Due 2013 [Member]
Debt Instrument [Line Items]
Notes payable	13,923,000		14,110,000
Stated interest rate	5.695%		5.695%
Face amount of debt	14,100,000		14,100,000
Fixed Rate Notes [Member] | Six Point Zero Zero Percent Note Due 2021 [Member]
Debt Instrument [Line Items]
Notes payable	2,952,000	[1]	2,978,000	[1]
Stated interest rate	6.00%	[1]	6.00%	[1]
Face amount of debt	3,000,000	[1]	3,000,000	[1]
Term of balloon note after interest rate reset	5 years		5 years
Term of amortization on balloon note after interest rate reset	30 years		30 years
Fixed Rate Notes [Member] | Six Point Zero Four Percent Note Due 2014 [Member]
Debt Instrument [Line Items]
Notes payable	9,189,000		9,326,000
Stated interest rate	6.04%		6.04%
Face amount of debt	10,000,000		10,000,000
Fixed Rate Notes [Member] | Six Point Five Zero Percent Note Due 2014 [Member]
Debt Instrument [Line Items]
Notes payable	1,451,000		1,471,000
Stated interest rate	6.50%		6.50%
Face amount of debt	1,500,000		1,500,000
Fixed Rate Notes [Member] | Six Point Five Two Percent Note Due 2015 [Member]
Debt Instrument [Line Items]
Notes payable	10,648,000		10,763,000
Stated interest rate	6.52%		6.52%
Face amount of debt	11,200,000		11,200,000
Fixed Rate Notes [Member] | Six Point Five Three Percent Notes Due 2013 [Member]
Debt Instrument [Line Items]
Notes payable	19,034,000		19,524,000
Stated interest rate	6.53%		6.53%
Face amount of debt	21,400,000		21,400,000
Fixed Rate Notes [Member] | Six Point Five Six Percent Note Due 2013 [Member]
Debt Instrument [Line Items]
Notes payable	23,254,000		23,597,000
Stated interest rate	6.56%		6.56%
Face amount of debt	24,500,000		24,500,000
Fixed Rate Notes [Member] | Six Point Six Three Percent Notes Due 2014 [Member]
Debt Instrument [Line Items]
Notes payable	9,001,000		9,221,000
Stated interest rate	6.63%		6.63%
Face amount of debt	9,900,000		9,900,000
Fixed Rate Notes [Member] | Two Point Nine Seven Percent Notes Due 2012 [Member]
Debt Instrument [Line Items]
Notes payable	193,000		23,000
Stated interest rate	2.97%		2.97%
Face amount of debt	700,000		700,000
Unsecured Line of Credit [Member] | LIBOR Plus Two Point Seven Five Percent to Three Point Seven Five Percent Unsecured Line of Credit Due 2015 [Member]
Debt Instrument [Line Items]
Notes payable	45,000,000		11,000,000
Description of variable rate basis	LIBOR		LIBOR
Basis spread on variable rate	3.00%
Unsecured Line of Credit [Member] | Prime Rate Less Two Point Zero Zero Percent Due 2017 [Member]
Debt Instrument [Line Items]
Notes payable	7,861,000		0
Floating Rate Notes [Member] | Prime Rate Less Two Point Zero Zero Percent Due 2017 [Member]
Debt Instrument [Line Items]
Face amount of debt	9,200,000		9,200,000
Description of variable rate basis	Prime		Prime
Basis spread on variable rate	2.00%		2.00%
Floating Rate Notes [Member] | LIBOR Plus Two Point Eight Six Percent Note Due 2013 [Member]
Debt Instrument [Line Items]
Notes payable	23,947,000		24,559,000
Face amount of debt	$ 26,900,000		$ 26,900,000
Description of variable rate basis	LIBOR		LIBOR
Basis spread on variable rate	2.86%		2.86%
Minimum [Member] | Unsecured Line of Credit [Member] | LIBOR Plus Two Point Seven Five Percent to Three Point Seven Five Percent Unsecured Line of Credit Due 2015 [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	2.75%		2.75%
Maximum [Member] | Unsecured Line of Credit [Member] | LIBOR Plus Two Point Seven Five Percent to Three Point Seven Five Percent Unsecured Line of Credit Due 2015 [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	3.75%		3.75%

[1] The 6.00% interest rate is fixed through March 30, 2016. On March 31, 2016 the interest rate will reset to the rate of interest for a five-year balloon note with a thirty-year amortization as published by the Federal Home Loan Bank.

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Grants to Trustees

9 Months Ended

Sep. 30, 2012

Grants to Trustees [Abstract]

Grants To Trustees

GRANTS TO TRUSTEES

On May 22, 2012, each of our four independent trustees was granted 1,500 common shares, which vested immediately. The 6,000 common shares granted to our four independent trustees had a grant date fair value of $13.03 per share. On June 25, 2012, two of our independent trustees elected to receive a total of 915 common shares with a grant date fair value of $13.39 in lieu of cash for board fees. The fair value of the shares granted during the nine months ended September 30, 2012 was determined using quoted prices available on the date of grant.