SCHEDULE III REAL ESTATE AND ACCUMULATED DEPRECIATION

12 Months Ended

Dec. 31, 2023

SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation Disclosure [Abstract]

Schedule III Real Estate and Accumulated Depreciation

			Initial Cost to Company								Cost Amount Carried at Close of Period
Property	City	State	Land		Buildings and Improvements		Costs Capitalized Subsequent to Acquisition, Net		Impairment/Write Downs		Land		Buildings and Improvements		Total(1)		Accumulated Depreciation(2)		Date Acquired	Original Construction Date
1225 Seventeenth Street	Denver	CO	$	22,400	$	110,090	$	48,374	$	(4,877)	$	22,400	$	153,587	$	175,987	$	65,171	6/24/2009	1982
1250 H Street, NW	Washington	DC	5,975		53,778		22,316		(6,046)		5,975		70,048		76,023		41,761		6/23/1998	1992
206 East 9th Street	Austin	TX	7,900		38,533		9,952		(1,710)		7,900		46,775		54,675		14,003		5/31/2012	1984
Bridgepoint Square	Austin	TX	7,785		70,526		32,150		(5,259)		7,785		97,417		105,202		59,600		12/5/1997	1986;1996; 1997
			$	44,060	$	272,927	$	112,792	$	(17,892)	$	44,060	$	367,827	$	411,887	$	180,535

Analysis of the carrying amount of real estate properties and accumulated depreciation:

	Real Estate Properties		Accumulated Depreciation
Balance at January 1, 2021	$	401,710	$	143,319
Additions	6,326		15,054
Disposals	(1,934)		(1,934)
Balance at December 31, 2021	406,102		156,439
Additions	4,002		15,072
Disposals	(1,981)		(1,981)
Balance at December 31, 2022	408,123		169,530
Additions	7,638		14,879
Disposals	(3,874)		(3,874)
Balance at December 31, 2023	$	411,887	$	180,535

(1)Excludes value of real estate intangibles. Aggregate cost for federal income tax purposes is $545,860.

(2)Depreciation is calculated using the straight-line method over estimated useful lives of up to 40 years for buildings and improvements and up to 12 years for personal property.