Organization and Ownership (Tables)

12 Months Ended

Dec. 31, 2016

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of real estate properties

	Number of Properties/Projects	Estimated Office Rentable Square Feet (unaudited)
Properties held for sale (1)	1	67,995
Development project in “lease-up" (2)	1	377,000
Development projects under construction (2)(3)	3	1,100,000

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(1) See Note 4 “Dispositions and Real Estate Assets Held for Sale” for additional information.

(2) Estimated rentable square feet upon completion.

(3) Development projects under construction also include 96,000 square feet of retail space and 237 residential units in addition to the estimated office rentable square feet noted above.

Our stabilized portfolio of operating properties was comprised of the following properties at December 31, 2016:

	Number of Buildings	Rentable Square Feet (unaudited)	Number of Tenants	Percentage  Occupied (unaudited)		Percentage Leased (unaudited)
Stabilized Office Properties	108	14,025,856	549	96.0	%	97.0	%

	Number of Buildings	Number of Units	Percentage  Occupied (unaudited)		Percentage Leased (unaudited)
Stabilized Residential Property	1	200	46.0	%	56.5	%