4. Real Estate Assets and Construction in Progress

The following is a summary of properties owned or leased by the Company as of March 31, 2019 and December 31, 2018 (in thousands):

As of March 31, 2019 (unaudited):


			Buildings,
			Improvements		Construction
Property Location	Land		and Equipment		in Progress		Total Cost
Atlanta, Georgia (Atlanta-Metro)	$	20,416	$	497,111	$	110,769	$	628,296
Irving, Texas		8,606		346,276		104,988		459,870
Richmond, Virginia		2,180		253,593		68,059		323,832
Chicago, Illinois		9,400		152,704		120,999		283,103
Suwanee, Georgia (Atlanta-Suwanee)		3,521		167,173		2,977		173,671
Ashburn, Virginia (1)		17,326		95,585		166,484		279,395
Piscataway, New Jersey		7,466		98,501		34,141		140,108
Santa Clara, California (2)		—		105,386		1,250		106,636
Dulles, Virginia		3,154		72,756		4,018		79,928
Sacramento, California		1,481		64,904		91		66,476
Leased Facilities (3)		—		89,331		9,449		98,780
Fort Worth, Texas		9,078		18,619		50,869		78,566
Princeton, New Jersey		20,700		34,083		424		55,207
Phoenix, Arizona (1)		—		—		30,016		30,016
Hillsboro, Oregon (1)		—		—		44,942		44,942
Manassas, Virginia (1)		—		8		54,245		54,253
Other (4)		2,213		35,795		167		38,175
	$	105,541	$	2,031,825	$	803,888	$	2,941,254

(1)

Represent land purchases. Land acquisition costs, as well as subsequent development costs, are included within construction in progress until development on the land has ended and the asset is ready for its intended use.

(2)

Owned facility subject to long-term ground sublease.

(3)

Includes 9 facilities. All facilities are leased, including those subject to finance leases.

(4)

Consists of Miami, FL; Lenexa, KS and Overland Park, KS facilities.

As of December 31, 2018:


			Buildings,
			Improvements		Construction
Property Location	Land		and Equipment		in Progress		Total Cost
Atlanta, Georgia (Atlanta-Metro)	$	20,416	$	493,446	$	88,253	$	602,115
Irving, Texas		8,606		345,615		99,445		453,666
Richmond, Virginia		2,180		253,098		67,932		323,210
Chicago, Illinois		9,400		130,150		133,095		272,645
Ashburn, Virginia (1)		17,325		63,245		184,951		265,521
Suwanee, Georgia (Atlanta-Suwanee)		3,521		166,298		3,188		173,007
Piscataway, New Jersey		7,466		97,806		33,472		138,744
Manassas, Virginia (1) (2)		—		—		45,194		45,194
Santa Clara, California (3)		—		98,548		7,600		106,148
Dulles, Virginia		3,154		72,435		3,852		79,441
Fort Worth, Texas		9,079		18,623		43,715		71,417
Sacramento, California		1,481		64,874		92		66,447
Princeton, New Jersey		20,700		34,046		431		55,177
Leased Facilities (4)		—		43,347		9,334		52,681
Hillsboro, Oregon (1)		—		—		39,835		39,835
Phoenix, Arizona (1)		—		—		29,562		29,562
Other (5)		2,213		35,720		113		38,046
	$	105,541	$	1,917,251	$	790,064	$	2,812,856

(1)

(2)

Excludes $71.0 million of construction in progress included within the “Assets held for sale” line item of the consolidated balance sheets.

(3)

Owned facility subject to long-term ground sublease.

(4)

Includes 10 facilities. All facilities are leased, including those subject to finance leases.

(5)

Consists of Miami, FL; Lenexa, KS; Overland Park, KS; and Duluth, GA facilities.