v3.26.1
SCHEDULE III REAL ESTATE AND ACCUMULATED DEPRECIATION
 12 Months Ended
Dec. 31, 2025
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 CompanyCosts Capitalized Subsequent to AcquisitionCost amount carried at Close of Period
Property *LocationNumber of Properties
Encumbrances (1)
LandBuildings
and
Equipment		Impairments/
Writedowns		LandBuildings
and
Equipment
Total (2)
Accumulated
Depreciation (3)
Date(s)
Acquired		Original
Construction
Date(s)
445 Jan Davis Drive (8)
 Huntsville, AL 1$— $1,501 $1,492 $— $— $1,501 $1,492 $2,993 $(278)12/31/20182007
131 Clayton Street Montgomery, AL 1— 920 9,084 569 — 920 9,653 10,573 (3,509)6/22/20112007
4344 Carmichael Road Montgomery, AL 1— 1,374 11,658 571 — 1,374 12,229 13,603 (3,796)12/17/20132009
15451 North 28th Avenue (6)
 Phoenix, AZ 1— 1,917 7,416 1,630 — 1,917 9,046 10,963 (2,637)9/10/20141996
711 S 14th Avenue Safford, AZ 1— 460 11,708 1,182 (4,440)364 8,546 8,910 (2,411)6/16/20101992
2544 Campbell Place (7)
 Carlsbad, CA 1— 2,687 1,796 1,614 — 2,687 3,410 6,097 (1,149)12/31/20182007
2548 Campbell Place (6)
 Carlsbad, CA 1— 3,082 2,075 5,156 — 3,082 7,231 10,313 (3,011)12/31/20182007
Folsom Corporate Center (5)
 Folsom, CA 1— 2,904 5,583 1,587 — 2,904 7,170 10,074 (2,130)12/31/20182008
Bayside Technology Park (7)
 Fremont, CA 1— 10,784 648 1,477 — 10,784 2,125 12,909 (313)12/31/20181990
10949 N. Mather Boulevard Rancho Cordova, CA 1— 562 16,923 1,390 — 562 18,313 18,875 (5,701)10/30/20132012
11020 Sun Center Drive Rancho Cordova, CA 1— 1,466 8,797 4,798 — 1,466 13,595 15,061 (2,751)12/20/20161983
100 Redwood Shores Parkway Redwood City, CA 1— 14,454 7,721 — — 14,454 7,721 22,175 (1,498)12/31/20181993
9815 Goethe Road (6)
 Sacramento, CA 1— 1,450 9,465 5,574 — 1,450 15,039 16,489 (4,055)9/14/20111992
Capitol Place (6)
 Sacramento, CA 1— 2,290 35,891 9,978 — 2,290 45,869 48,159 (19,214)12/17/20091988
4560 Viewridge Road (5)
 San Diego, CA 1— 4,269 18,316 6,370 — 4,347 24,608 28,955 (16,705)3/31/19971996
2115 O’Nel Drive (7)
 San Jose, CA 1— 12,305 5,062 386 — 12,305 5,448 17,753 (1,124)12/31/20181984
51 Rio Robles Drive San Jose, CA 1— 7,416 4,782 582 — 7,416 5,364 12,780 (1,243)12/31/20181984
77 Rio Robles Drive (6)
 San Jose, CA 1— 8,362 5,393 9,476 — 8,362 14,869 23,231 (4,532)12/31/20181984
145 Rio Robles Drive
 San Jose, CA 18,116 7,909 3,523 6,607 — 7,909 10,130 18,039 (2,404)12/31/20181984
2500 Walsh Avenue (6)
 Santa Clara, CA 1— 6,687 8,326 3,490 — 6,687 11,816 18,503 (1,915)12/31/20181982
603 San Juan Avenue Stockton, CA 1— 563 5,470 216 — 563 5,686 6,249 (1,957)7/20/20122012
350 West Java Drive (6)
 Sunnyvale, CA 1— 24,609 462 3,296 — 24,609 3,758 28,367 (740)12/31/20181984
7958 South Chester Street Centennial, CO 1— 6,682 7,153 3,551 — 6,682 10,704 17,386 (2,090)12/31/20182000
12795 West Alameda Parkway Lakewood, CO 1— 2,640 23,777 277 (22,489)585 3,620 4,205 (190)1/15/20101988
11 Dupont Circle, NW (7)
 Washington, DC 1— 28,255 44,743 24,516 — 28,255 69,259 97,514 (19,111)10/2/20171974
1211 Connecticut Avenue, NW Washington, DC 1— 30,388 24,667 3,588 — 30,388 28,255 58,643 (7,558)10/2/20171967
1401 K Street, NW (7)
 Washington, DC 1— 29,215 34,656 8,522 — 29,215 43,178 72,393 (12,925)10/2/20171929
20 Massachusetts Avenue (7)
 Washington, DC 1— 12,009 51,527 220,376 — 12,230 271,682 283,912 (70,611)3/31/19971996
440 First Street, NW (5)
 Washington, DC 1— 27,903 38,624 3,589 — 27,903 42,213 70,116 (8,840)10/2/20171982
625 Indiana Avenue (7)
 Washington, DC 1— 26,000 25,955 13,258 — 26,000 39,213 65,213 (16,061)8/17/20101989
   Initial Cost to CompanyCosts Capitalized Subsequent to AcquisitionCost amount carried at Close of Period
Property *LocationNumber of Properties
Encumbrances (1)
LandBuildings
and
Equipment		Impairments/
Writedowns		LandBuildings
and
Equipment
Total (2)
Accumulated
Depreciation (3)
Date(s)
Acquired		Original
Construction
Date(s)
840 First Street, NE Washington, DC 1— 42,727 73,278 2,895 — 42,727 76,173 118,900 (16,614)10/2/20172003
10350 NW 112th Avenue (8)
 Miami, FL 1— 4,798 2,757 2,413 — 4,798 5,170 9,968 (1,348)12/31/20182002
7850 Southwest 6th Court (6)
 Plantation, FL 1— 4,800 30,592 17,033 — 4,800 47,625 52,425 (13,524)5/12/20111999
8900 Grand Oak Circle (7)
 Tampa, FL 1— 1,100 11,773 1,835 — 1,100 13,608 14,708 (5,091)10/15/20101994
180 Ted Turner Drive SW (5)
 Atlanta, GA 1— 5,717 20,017 2,826 — 5,717 22,843 28,560 (7,386)7/25/20122007
1224 Hammond Drive (6)
 Atlanta, GA 1— 13,040 135,459 11,718 — 13,040 147,177 160,217 (20,443)6/25/20212020
One Georgia Center (5)
 Atlanta, GA 1— 10,250 27,933 22,799 — 10,250 50,732 60,982 (18,264)9/30/20111968
One Primerica Parkway (4)
 Duluth, GA 126,421 6,927 22,951 3,110 — 6,927 26,061 32,988 (4,464)12/31/20182013
4712 Southpark Boulevard (8)
 Ellenwood, GA 1— 1,390 19,635 1,564 — 1,390 21,199 22,589 (6,995)7/25/20122005
8305 NW 62nd Avenue Johnston, IA 1— 2,649 7,997 — — 2,649 7,997 10,646 (1,552)12/31/20182011
1185, 1249 & 1387 S. Vinnell Way (6)
 Boise, ID 3— 3,390 29,026 1,740 — 3,390 30,766 34,156 (10,385)9/11/20121996; 1997; 2002
2020 S. Arlington Heights (5)
 Arlington Heights, IL 1— 1,450 13,588 2,190 — 1,450 15,778 17,228 (6,133)12/29/20091998
1000 W. Fulton (5)
 Chicago, IL 1— 42,935 252,914 1,319 — 42,935 254,233 297,168 (38,351)6/24/20212015
HUB 1415 (8)
 Naperville, IL 1— 12,333 20,586 31,674 — 12,333 52,260 64,593 (14,009)12/31/20182001
7601 and 7635 Interactive Way Indianapolis, IN 2— 3,337 14,522 34 — 3,337 14,556 17,893 (2,664)12/31/20182003
251 Causeway Street (7)
 Boston, MA 3— 26,851 36,756 6,928 — 26,848 43,687 70,535 (12,139)8/17/20101987
330 Billerica Road (8)
 Chelmsford, MA 1— 2,477 — 10,273 — 2,477 10,273 12,750 (3,562)12/31/20181984
25 Newport Avenue (7)
 Quincy, MA 1— 2,700 9,199 2,895 — 2,700 12,094 14,794 (4,459)2/16/20111985
2009-2011 Commerce Park Drive (7)
 Annapolis, MD 1— 1,580 3,825 4,096 — 1,580 7,921 9,501 (2,073)10/2/20171989
2001-2003 Commerce Park Drive Annapolis, MD 1— 2,477 3,840 1,197 — 2,476 5,038 7,514 (1,410)10/2/20171989
4201 Patterson Avenue (7)
 Baltimore, MD 1— 901 8,097 3,159 (85)893 11,179 12,072 (6,707)10/15/19981989
7001 Columbia Gateway Drive (7)
 Columbia, MD 1— 5,642 10,352 5,004 — 5,642 15,356 20,998 (3,001)12/31/20182008
6310 Hillside Center Columbia, MD 1— 1,424 2,084 450 — 1,424 2,534 3,958 (747)10/2/20172001
6315 Hillside Center (7)
 Columbia, MD 1— 2,013 2,144 531 — 2,013 2,675 4,688 (782)10/2/20172001
TenThreeTwenty (7)
 Columbia, MD 1— 3,126 16,361 5,167 — 3,126 21,528 24,654 (4,958)10/2/20171982
3300 75th Avenue Landover, MD 129,756 4,110 36,371 3,959 — 4,110 40,330 44,440 (16,122)2/26/20101985
Redland 520/530 (7)
 Rockville, MD 3— 12,714 61,377 8,568 — 12,714 69,945 82,659 (15,024)10/2/20172008
Redland 540 (7)
 Rockville, MD 1— 10,740 17,714 3,259 — 10,740 20,973 31,713 (4,895)10/2/20172003
   Initial Cost to CompanyCosts Capitalized Subsequent to AcquisitionCost amount carried at Close of Period
Property *LocationNumber of Properties
Encumbrances (1)
LandBuildings
and
Equipment		Impairments/
Writedowns		LandBuildings
and
Equipment
Total (2)
Accumulated
Depreciation (3)
Date(s)
Acquired		Original
Construction
Date(s)
3550 Green Court Ann Arbor, MI 1— 3,630 4,857 — — 3,630 4,857 8,487 (1,000)12/31/20181998
Rosedale Corporate Plaza (8)
 Roseville, MN 1— 672 6,045 4,487 — 672 10,532 11,204 (4,314)12/1/19991987
2555 Grand Boulevard (5)
 Kansas City, MO 1— 4,209 51,522 5,775 — 4,209 57,297 61,506 (12,089)12/31/20182003
4241 NE 34th Street (7)
 Kansas City, MO 1— 1,133 5,649 5,331 — 1,470 10,643 12,113 (6,224)3/31/19971995
1220 Echelon Parkway Jackson, MS 114,571 440 25,458 2,334 — 440 27,792 28,232 (9,008)7/25/20122009
2300 and 2400 Yorkmont Road (5)
 Charlotte, NC 2— 1,334 19,075 4,576 — 1,334 23,651 24,985 (5,438)12/31/20181995
18010 Burt Street (8)
 Omaha, NE 1— 2,819 6,250 4,647 — 2,819 10,897 13,716 (1,623)12/31/20182012
18020 Burt Street Omaha, NE 1— 4,158 6,250 2,436 — 4,158 8,686 12,844 (1,240)12/31/20182012
500 Charles Ewing Boulevard Ewing, NJ 142,453 4,808 26,002 1,846 — 4,808 27,848 32,656 (5,523)12/31/20182012
299 Jefferson Road (7)
 Parsippany, NJ 1— 4,543 2,914 1,686 — 4,543 4,600 9,143 (1,061)12/31/20182011
Airline Corporate Center (7)
 Colonie, NY 1— 790 6,400 2,202 — 790 8,602 9,392 (2,990)6/22/20122004
1212 Pittsford - Victor Road (7)
 Pittsford, NY 1— 608 78 1,738 — 608 1,816 2,424 (545)12/31/20181965
2231 Schrock Road (8)
 Columbus, OH 1— 716 217 578 — 716 795 1,511 (294)12/31/20181999
8800 Tinicum Boulevard (7)
 Philadelphia, PA 1— 5,573 22,686 7,093 — 5,573 29,779 35,352 (5,496)12/31/20182000
446 Wrenplace Road (7)
 Fort Mill, SC 1— 5,031 22,524 43 — 5,031 22,567 27,598 (2,835)12/22/20202019
9680 Old Bailes Road Fort Mill, SC 1— 834 2,944 91 — 834 3,035 3,869 (615)12/31/20182007
16001 North Dallas Parkway (8)
 Addison, TX 2— 10,282 63,071 5,071 — 10,282 68,142 78,424 (13,538)12/31/20181987
Research Park (6)
 Austin, TX 2— 4,258 13,747 2,935 — 4,258 16,682 20,940 (5,128)12/31/20181999
10451 Clay Road (8)
 Houston, TX 1— 5,495 10,253 2,433 — 5,495 12,686 18,181 (3,159)12/31/20182013
202 North Castlegory Road (8)
 Houston, TX 1— 863 5,024 98 — 863 5,122 5,985 (939)12/31/20182016
4221 W. John Carpenter Freeway (8)
 Irving, TX 1— 1,413 2,365 778 — 1,413 3,143 4,556 (954)12/31/20181995
8675,8701-8711 Freeport Pkwy and 8901 Esters Boulevard (7)
 Irving, TX 3— 12,970 31,566 851 — 12,970 32,417 45,387 (6,125)12/31/20181990
1511 East Common Street (7)
 New Braunfels, TX 1— 4,965 1,266 1,110 — 4,965 2,376 7,341 (259)12/31/20182005
2900 West Plano Parkway Plano, TX 1— 6,819 8,831 3,049 — 6,819 11,880 18,699 (1,715)12/31/20181998
3400 West Plano Parkway (8)
 Plano, TX 1— 4,543 15,964 321 — 4,543 16,285 20,828 (3,203)12/31/20181994
3600 Wiseman Boulevard (6)
 San Antonio, TX 1— 3,493 6,662 4,764 — 3,493 11,426 14,919 (2,161)12/31/20182004
701 Clay Road (4)
 Waco, TX 126,421 2,030 8,708 15,089 — 2,060 23,767 25,827 (12,503)12/23/19971997
1800 Novell Place (6)
 Provo, UT 1— 7,487 43,487 21,383 — 7,487 64,870 72,357 (12,404)12/31/20182000
   Initial Cost to CompanyCosts Capitalized Subsequent to AcquisitionCost amount carried at Close of Period
Property *LocationNumber of Properties
Encumbrances (1)
LandBuildings
and
Equipment		Impairments/
Writedowns		LandBuildings
and
Equipment
Total (2)
Accumulated
Depreciation (3)
Date(s)
Acquired		Original
Construction
Date(s)
14660 Lee Road (8)
 Chantilly, VA 1— 2,536 14,686 3,261 — 2,537 17,946 20,483 (4,207)12/22/20161998
14672 Lee Road (5)
 Chantilly, VA 1— 2,253 24,749 4,933 — 2,253 29,682 31,935 (8,849)12/22/20162002
14668 Lee Road (5)
 Chantilly, VA 1— 2,177 34,779 18,619 — 2,177 53,398 55,575 (10,049)12/22/20162006
Enterchange at Meadowville (6)
 Chester, VA 1— 1,478 9,594 1,369 — 1,478 10,963 12,441 (3,424)8/28/20131999
7987 Ashton Avenue (7)
 Manassas, VA 1— 1,562 8,253 1,337 — 1,562 9,590 11,152 (2,594)1/3/20171989
Two Commercial Place (8)
 Norfolk, VA 1— 4,494 21,508 1,145 — 4,494 22,653 27,147 (4,283)12/31/20181974
1760 Business Center Drive Reston, VA 1— 5,033 50,141 6,685 — 5,033 56,826 61,859 (16,797)5/28/20141987
1775 Wiehle Avenue Reston, VA 1— 4,138 26,120 6,044 — 4,138 32,164 36,302 (8,101)10/2/20172001
9201 Forest Hill Avenue Richmond, VA 1— 1,344 375 668 — 1,344 1,043 2,387 (404)12/31/20181985
9960 Mayland Drive (7)
 Richmond, VA 1— 2,614 15,930 5,075 — 2,614 21,005 23,619 (6,794)5/20/20141994
1751 Blue Hills Drive (5)
 Roanoke, VA 1— 2,689 7,761 — — 2,689 7,761 10,450 (1,506)12/31/20182003
Atlantic Corporate Park (7)
 Sterling, VA 2— 5,752 29,316 4,720 — 5,752 34,036 39,788 (7,648)10/2/20172008
Orbital Sciences Campus (5)
 Sterling, VA 3— 12,275 19,320 37,505 — 12,269 56,831 69,100 (8,563)12/31/20182001
Sterling Park Business Center Sterling, VA 126,102 5,871 44,324 134 — 5,871 44,458 50,329 (9,193)10/2/20172016
65 Bowdoin Street (6)
 S. Burlington, VT 1— 700 8,416 231 — 700 8,647 9,347 (3,406)4/9/20102009
Stevens Center (5)
 Richland, WA 2— 3,970 17,035 4,917 — 4,042 21,880 25,922 (14,565)3/31/19971995
Unison Elliott Bay-Lab Space (8)
 Seattle, WA 2— 17,316 34,281 147,293 — 17,316 181,574 198,890 (21,467)12/31/20182000
Unison Elliott Bay-Office Space (8)
 Seattle, WA 1— 9,324 18,459 4,893 — 9,324 23,352 32,676 (4,559)12/31/20182000
5353 Yellowstone Road (5)
 Cheyenne, WY 1— 1,915 8,217 4,935 — 1,950 13,117 15,067 (7,190)3/31/19971995
122$173,840 $708,018 $2,136,920 $858,771 $(27,014)$706,623 $2,970,072 $3,676,695 $(729,543)
(1) Represents mortgage debt, net of the unamortized balance of debt issuance costs totaling $3,480.
(2) Excludes the value of real estate intangibles. Aggregate cost for federal income tax purposes is approximately $7,069,942.
(3) Depreciation on building and improvements is provided for periods ranging up to 40 years and on equipment up to seven years.
(4) These two properties are collateral for our $54,300 mortgage note.
(5) These 19 properties are first lien collateral for our $425,000 credit agreement and second lien collateral for our $610,000 of 9.000% senior secured notes due September 2029.
(6) These 17 properties are collateral for our $300,000 of 9.000% senior secured notes due March 2029.
(7) These 35 properties are first lien collateral for our $445,000 of 3.250% senior secured notes due March 2027, or the March 2027 Notes.
(8) These 19 properties are first lien collateral for the September 2029 Notes and second lien collateral for the March 2027 Notes.

*All properties that are not otherwise noted as collateral for certain debt instruments serve as first lien collateral for our $125,000 secured debtor-in-possession term loan.
An analysis of the carrying amount of real estate properties and accumulated depreciation is as follows:
 Real Estate PropertiesAccumulated Depreciation
Balance at December 31, 20234,065,679 650,179 
Additions107,912 118,710 
Loss on asset impairment(181,578)— 
Disposals(283,534)(131,024)
Cost basis adjustment (1)
(9,185)(9,185)
Reclassification of assets of properties held for sale(41,735)(10,030)
Balance at December 31, 20243,657,559 618,650 
Additions38,945 121,856 
Loss on asset impairment(2,426)— 
Disposals(17,383)(10,963)
Balance at December 31, 2025$3,676,695 $729,543 
(1)    Represents the reclassification between accumulated depreciation and building made to certain properties measured at fair value in accordance with GAAP.