
(State or other jurisdiction of incorporation or organization) | (I.R.S. Employer Identification Number) |
Title of each class | Trading Symbol(s) | Name of each exchange on which registered |
☒ | Smaller reporting company | |||
Accelerated filer | ☐ | Emerging growth company | ||
Non-accelerated filer | ☐ |
PART I | Page | |
BUSINESS ............................................................................................................................................................................... | ||
RISK FACTORS ...................................................................................................................................................................... | ||
UNRESOLVED STAFF COMMENTS .................................................................................................................................. | ||
CYBERSECURITY ................................................................................................................................................................. | ||
PROPERTIES ......................................................................................................................................................................... | ||
LEGAL PROCEEDINGS ....................................................................................................................................................... | ||
MINE SAFETY DISCLOSURES .......................................................................................................................................... | ||
PART II | ||
ISSUER PURCHASES OF EQUITY SECURITIES .......................................................................................................... | ||
[RESERVED] ........................................................................................................................................................................... | ||
OPERATIONS ........................................................................................................................................................................ | ||
QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK ......................................................... | ||
FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA ......................................................................................... | ||
DISCLOSURE ......................................................................................................................................................................... | ||
CONTROLS AND PROCEDURES ...................................................................................................................................... | ||
OTHER INFORMATION ........................................................................................................................................................ | ||
DISCLOSURE REGARDING FOREIGN JURISDICTIONS THAT PREVENT INSPECTIONS ................................. | ||
PART III | ||
DIRECTORS, EXECUTIVE OFFICERS, AND CORPORATE GOVERNANCE ........................................................... | ||
EXECUTIVE COMPENSATION ........................................................................................................................................... | ||
STOCKHOLDER MATTERS ............................................................................................................................................... | ||
PRINCIPAL ACCOUNTANT FEES AND SERVICES ....................................................................................................... | ||
PART IV | ||
EXHIBITS AND FINANCIAL STATEMENT SCHEDULES ............................................................................................... |
ASU | Accounting Standards Update |
ATM | At the Market |
CIP | Construction in Progress |
EPS | Earnings per Share |
FASB | Financial Accounting Standards Board |
FDA | U.S. Food and Drug Administration |
FDIC | Federal Deposit Insurance Corporation |
FFO | Funds From Operations |
GAAP | U.S. Generally Accepted Accounting Principles |
HVAC | Heating, Ventilation, and Air Conditioning |
IRS | Internal Revenue Service |
JV | Joint Venture |
LEED® | Leadership in Energy and Environmental Design |
Nareit | National Association of Real Estate Investment Trusts |
NAV | Net Asset Value |
NYSE | New York Stock Exchange |
REIT | Real Estate Investment Trust |
RSF | Rentable Square Feet/Foot |
SEC | Securities and Exchange Commission |
SF | Square Feet/Foot |
SoDo | South of Downtown submarket of Seattle |
SOFR | Secured Overnight Financing Rate |
SoMa | South of Market submarket of San Francisco |
U.S. | United States |
VIE | Variable Interest Entity |
RSF | Number of Properties | Annual Rental Revenue | ||||||||||||||||
Market | Operating | Development | Redevelopment | Total | % of Total | Total | % of Total | Per RSF | ||||||||||
Greater Boston | 9,260,235 | 632,850 | 1,601,010 | 11,494,095 | 26% | 64 | $760,564 | 36% | $86.67 | |||||||||
San Francisco Bay Area | 7,680,005 | 394,781 | 366,939 | 8,441,725 | 19 | 65 | 443,345 | 21 | 66.78 | |||||||||
San Diego | 7,382,450 | 921,510 | — | 8,303,960 | 19 | 79 | 326,925 | 16 | 45.97 | |||||||||
Seattle | 3,186,812 | 227,577 | — | 3,414,389 | 8 | 45 | 136,014 | 5 | 46.19 | |||||||||
Maryland | 3,849,928 | — | — | 3,849,928 | 9 | 50 | 144,032 | 7 | 39.53 | |||||||||
Research Triangle | 3,802,204 | — | — | 3,802,204 | 9 | 38 | 116,808 | 6 | 31.53 | |||||||||
New York City | 921,774 | — | — | 921,774 | 2 | 4 | 73,534 | 4 | 90.26 | |||||||||
Texas | 1,845,159 | — | 73,298 | 1,918,457 | 4 | 15 | 44,022 | 2 | 24.99 | |||||||||
Canada | 888,189 | — | 139,311 | 1,027,500 | 2 | 11 | 19,661 | 1 | 23.08 | |||||||||
Non-cluster/other markets | 349,099 | — | — | 349,099 | 1 | 10 | 15,027 | 1 | 59.35 | |||||||||
Properties held for sale | 600,870 | — | — | 600,870 | 1 | 10 | 13,056 | 1 | N/A | |||||||||
North America | 39,766,725 | 2,176,718 | 2,180,558 | 44,124,001 | 100% | 391 | $2,092,988 | 100% | $56.98 | |||||||||
4,357,276 | ||||||||||||||||||
Operating Properties | Operating and Redevelopment Properties | |||||||||||
Market | 12/31/24 | 12/31/23 | 12/31/22 | 12/31/24 | 12/31/23 | 12/31/22 | ||||||
Greater Boston | 94.8% | 94.9% | 94.5% | 80.8% | 84.7% | 85.5% | ||||||
San Francisco Bay Area | 93.3 | 94.8 | 96.7 | 89.1 | 91.4 | 93.3 | ||||||
San Diego | 96.3 | 94.1 | 95.4 | 96.3 | 94.1 | 95.4 | ||||||
Seattle | 92.4 | 95.2 | 97.0 | 92.4 | 90.7 | 90.1 | ||||||
Maryland | 95.7 | 95.6 | 95.8 | 95.7 | 95.6 | 93.3 | ||||||
Research Triangle | 97.4 | 97.8 | 94.0 | 97.4 | 97.8 | 85.0 | ||||||
New York City | 88.4 | (1) | 85.3 | 92.3 | 88.4 | 85.3 | 92.3 | |||||
Texas | 95.5 | 95.1 | 91.2 | 91.8 | 91.5 | 81.6 | ||||||
Subtotal | 94.8 | 94.9 | 95.1 | 90.0 | 90.7 | 89.9 | ||||||
Canada | 95.9 | 87.1 | 80.8 | 82.9 | 73.0 | 68.2 | ||||||
Non-cluster/other markets | 72.5 | 78.5 | 75.0 | 72.5 | 78.5 | 75.0 | ||||||
North America | 94.6% | (2) | 94.6% | 94.8% | 89.7% | 90.2% | 89.4% | |||||
Remaining Lease Term(1) (in Years) | Aggregate RSF | Annual Rental Revenue(1) | Percentage of Annual Rental Revenue(1) | Investment-Grade Credit Ratings | Average Market Cap (in billions) | ||||||||||||||||||
Tenant | Moody’s | S&P | |||||||||||||||||||||
1 | Eli Lilly and Company | 8.4 | 1,122,777 | $ | 90,259 | 4.3% | A1 | A+ | $769.8 | ||||||||||||||
2 | Moderna, Inc. | 11.3 | 634,045 | 90,103 | 4.3 | — | — | $35.1 | |||||||||||||||
3 | Bristol-Myers Squibb Company | 5.4 | 999,379 | 77,188 | 3.7 | A2 | A | $100.6 | |||||||||||||||
4 | Takeda Pharmaceutical Company Limited | 10.4 | 549,759 | 47,899 | 2.3 | Baa1 | BBB+ | $44.2 | |||||||||||||||
5 | Roche | 8.2 | 647,069 | 37,405 | 1.8 | Aa2 | AA | $232.8 | |||||||||||||||
6 | Illumina, Inc. | 5.9 | 857,967 | 35,924 | 1.7 | Baa3 | BBB | $20.6 | |||||||||||||||
7 | Alphabet Inc. | 2.8 | 625,015 | 34,899 | 1.7 | Aa2 | AA+ | $2,032.2 | |||||||||||||||
8 | 2seventy bio, Inc.(2) | 8.7 | 312,805 | 33,543 | 1.6 | — | — | $0.2 | |||||||||||||||
9 | United States Government | 5.6 | 429,359 | 28,861 | 1.4 | Aaa | AA+ | $— | |||||||||||||||
10 | Cloud Software Group, Inc. | 2.2 | (3) | 292,013 | 28,537 | 1.4 | — | — | $— | ||||||||||||||
11 | Novartis AG | 3.5 | 448,690 | 27,958 | 1.3 | Aa3 | AA- | $235.1 | |||||||||||||||
12 | Uber Technologies, Inc. | 57.8 | (4) | 1,009,188 | 27,787 | 1.3 | Baa2 | BBB- | $147.7 | ||||||||||||||
13 | AstraZeneca PLC | 4.8 | 450,848 | 27,226 | 1.3 | A2 | A+ | $226.6 | |||||||||||||||
14 | Boston Children's Hospital | 12.2 | 309,231 | 26,154 | 1.2 | Aa2 | AA | $— | |||||||||||||||
15 | The Regents of the University of California | 6.4 | 372,647 | 23,515 | 1.1 | Aa2 | AA | $— | |||||||||||||||
16 | Sanofi | 6.0 | 267,278 | 21,444 | 1.0 | A1 | AA | $127.9 | |||||||||||||||
17 | Merck & Co., Inc. | 8.5 | 337,703 | 21,401 | 1.0 | A1 | A+ | $300.0 | |||||||||||||||
18 | New York University | 7.1 | 218,983 | 21,056 | 1.0 | Aa2 | AA- | $— | |||||||||||||||
19 | Charles River Laboratories, Inc. | 10.3 | 255,635 | 20,578 | 1.0 | — | — | $11.1 | |||||||||||||||
20 | Massachusetts Institute of Technology | 5.0 | 237,849 | 20,228 | 1.0 | Aaa | AAA | $— | |||||||||||||||
Total/weighted-average | 9.3 | (4) | 10,378,240 | $741,965 | 35.4% | ||||||||||||||||||
Stable Cash Flows From Our High-Quality and Diverse Mix of Approximately 800 Tenants | ||||||
Investment-Grade or Publicly Traded Large Cap Tenants | ||||||
92% | ||||||
of ARE’s Top 20 Tenant Annual Rental Revenue | ||||||
52% | ||||||
Percentage of ARE’s Annual Rental Revenue | of ARE’s Annual Rental Revenue | |||||
Solid Historical Occupancy of 96% Over Past 10 Years(2) From Historically Strong Demand for Our Class A/A+ Properties in AAA Locations | ||||||
Annual Rental Revenue | Occupancy Across Key Locations | |||||
Percentage of ARE’s Annual Rental Revenue | ||||||



Long-Duration and Stable Cash Flows From High-Quality and Diverse Tenants | ||
Long-Duration Lease Terms | ||
9.3 Years | ||
Top 20 Tenants | ||
7.5 Years | ||
All Tenants | ||
Weighted-Average Remaining Term(1) | ||
Sustained Strength in Tenant Collections(2) | ||
99.9% | ||
For the Three Months Ended December 31, 2024 | ||
99.5% | ||
January 2025 | ||
Occupancy Percentage | |||||||||||||||||||
RSF | Number of Properties | Annual Rental Revenue | |||||||||||||||||
Operating | Operating and Redevelopment | ||||||||||||||||||
Market / Submarket / Address | Operating | Development | Redevelopment | Total | |||||||||||||||
Greater Boston | |||||||||||||||||||
Cambridge/Inner Suburbs | |||||||||||||||||||
Megacampus: Alexandria Center® at Kendall Square | 2,199,030 | — | — | 2,199,030 | 7 | $228,062 | 100.0% | 100.0% | |||||||||||
50(1), 60(1), 75/125(1), 100(1), and 225(1) Binney Street, 140 First Street, and 300 Third Street(1) | |||||||||||||||||||
Megacampus: Alexandria Center® at One Kendall Square | 1,281,580 | — | 104,956 | 1,386,536 | 12 | 145,576 | 94.8 | 87.6 | |||||||||||
One Kendall Square (Buildings 100, 200, 300, 400, 500, 600/700, 1400, 1800, and 2000), 325 and 399 Binney Street, and One Hampshire Street | |||||||||||||||||||
Megacampus: Alexandria Technology Square® | 1,185,190 | — | — | 1,185,190 | 7 | 110,969 | 97.7 | 97.7 | |||||||||||
100, 200, 300, 400, 500, 600, and 700 Technology Square | |||||||||||||||||||
Megacampus: The Arsenal on the Charles | 776,781 | 36,444 | 308,446 | 1,121,671 | 13 | 47,730 | 99.4 | 71.2 | |||||||||||
311, 321, and 343 Arsenal Street, 300, 400, and 500 North Beacon Street, 1, 2, 3, and 4 Kingsbury Avenue, and 100, 200, and 400 Talcott Avenue | |||||||||||||||||||
Megacampus: 480 Arsenal Way, 446, 458, 500, 550 Arsenal Street, and 99 Coolidge Avenue(1) | 633,056 | 204,395 | — | 837,451 | 6 | 28,173 | 98.4 | 98.4 | |||||||||||
Cambridge/Inner Suburbs | 6,075,637 | 240,839 | 413,402 | 6,729,878 | 45 | 560,510 | 98.2 | 91.9 | |||||||||||
Fenway | |||||||||||||||||||
Megacampus: Alexandria Center® for Life Science – Fenway | 1,291,019 | 392,011 | 137,675 | 1,820,705 | 3.0 | 100,587 | 89.7 | 81.1 | |||||||||||
401 and 421(1) Park Drive and 201 Brookline Avenue(1) | |||||||||||||||||||
Seaport Innovation District | |||||||||||||||||||
5 and 15(1) Necco Street | 441,396 | — | — | 441,396 | 2 | 44,143 | 81.8 | 81.8 | |||||||||||
Seaport Innovation District | 441,396 | — | — | 441,396 | 2 | 44,143 | 81.8 | 81.8 | |||||||||||
Route 128 | |||||||||||||||||||
Megacampus: Alexandria Center® for Life Science – Waltham | 466,094 | — | 596,064 | 1,062,158 | 5 | 36,659 | 100.0 | 43.9 | |||||||||||
40, 50, and 60 Sylvan Road, 35 Gatehouse Drive, and 840 Winter Street | |||||||||||||||||||
19, 225, and 235 Presidential Way | 585,226 | — | — | 585,226 | 3 | 13,937 | 100.0 | 100.0 | |||||||||||
Route 128 | 1,051,320 | — | 596,064 | 1,647,384 | 8 | 50,596 | 100.0 | 63.8 | |||||||||||
Other | 400,863 | — | 453,869 | 854,732 | 6 | 4,728 | 59.7 | 28.0 | |||||||||||
Greater Boston | 9,260,235 | 632,850 | 1,601,010 | 11,494,095 | 64 | $760,564 | 94.8% | 80.8% | |||||||||||
Refer to “New Class A/A+ development and redevelopment properties: summary of pipeline” in Item 2 and “Megacampus” under “Definitions and reconciliations” in Item 7 for additional details. (1)We own a partial interest in this property through a real estate joint venture. Refer to “Consolidated and unconsolidated real estate joint ventures” in Item 7 for additional details. | |||||||||||||||||||
Occupancy Percentage | |||||||||||||||||||
RSF | Number of Properties | Annual Rental Revenue | |||||||||||||||||
Operating | Operating and Redevelopment | ||||||||||||||||||
Market / Submarket / Address | Operating | Development | Redevelopment | Total | |||||||||||||||
San Francisco Bay Area | |||||||||||||||||||
Mission Bay | |||||||||||||||||||
Megacampus: Alexandria Center® for Science and Technology – Mission Bay(1) | 2,005,369 | 109,435 | — | 2,114,804 | 10 | $90,452 | 95.1% | 95.1% | |||||||||||
1455(2), 1515(2), 1655, and 1725 Third Street, 409 and 499 Illinois Street, 1450(3), 1500, and 1700 Owens Street, and 455 Mission Bay Boulevard South | |||||||||||||||||||
Mission Bay | 2,005,369 | 109,435 | — | 2,114,804 | 10 | 90,452 | 95.1 | 95.1 | |||||||||||
South San Francisco | |||||||||||||||||||
Megacampus: Alexandria Technology Center® – Gateway(1) | 1,408,022 | — | 259,689 | 1,667,711 | 12 | 76,705 | 81.9 | 69.1 | |||||||||||
600(2), 601, 611, 630(2), 650(2), 651, 681, 685, 701, 751, 901(2), and 951(2) Gateway Boulevard | |||||||||||||||||||
Megacampus: Alexandria Center® for Advanced Technologies – South San Francisco | 812,453 | — | 107,250 | 919,703 | 5 | 52,990 | 100.0 | 88.3 | |||||||||||
213(1), 249, 259, 269, and 279 East Grand Avenue | |||||||||||||||||||
Alexandria Center® for Life Science – South San Francisco | 504,053 | — | — | 504,053 | 3 | 32,767 | 93.9 | 93.9 | |||||||||||
201 Haskins Way and 400 and 450 East Jamie Court | |||||||||||||||||||
Megacampus: Alexandria Center® for Advanced Technologies – Tanforan | 445,232 | — | — | 445,232 | 2 | 3,829 | 100.0 | 100.0 | |||||||||||
1122 and 1150 El Camino Real | |||||||||||||||||||
Alexandria Center® for Life Science – Millbrae(1) | — | 285,346 | — | 285,346 | 1 | — | N/A | N/A | |||||||||||
230 Harriet Tubman Way | |||||||||||||||||||
500 Forbes Boulevard(1) | 155,685 | — | — | 155,685 | 1 | 10,680 | 100.0 | 100.0 | |||||||||||
South San Francisco | 3,325,445 | 285,346 | 366,939 | 3,977,730 | 24 | 176,971 | 91.4 | 82.3 | |||||||||||
Greater Stanford | |||||||||||||||||||
Megacampus: Alexandria Center® for Life Science – San Carlos | 738,038 | — | — | 738,038 | 9 | 41,671 | 94.5 | 94.5 | |||||||||||
825, 835, 960, and 1501-1599 Industrial Road | |||||||||||||||||||
Alexandria Stanford Life Science District | 704,560 | — | — | 704,560 | 9 | 75,771 | 98.5 | 98.5 | |||||||||||
3160, 3165, 3170, and 3181 Porter Drive and 3301, 3303, 3305, 3307, and 3330 Hillview Avenue | |||||||||||||||||||
3412, 3420, 3440, 3450, and 3460 Hillview Avenue | 340,103 | — | — | 340,103 | 5 | 23,603 | 82.9 | 82.9 | |||||||||||
3875 Fabian Way | 228,000 | — | — | 228,000 | 1 | 9,402 | 100.0 | 100.0 | |||||||||||
2475 and 2625/2627/2631 Hanover Street and 1450 Page Mill Road | 198,558 | — | — | 198,558 | 3 | 15,902 | 89.4 | 89.4 | |||||||||||
2100, 2200, and 2400 Geng Road | 78,501 | — | — | 78,501 | 3 | 4,803 | 100.0 | 100.0 | |||||||||||
3350 West Bayshore Road | 61,431 | — | — | 61,431 | 1 | 4,770 | 100.0 | 100.0 | |||||||||||
Greater Stanford | 2,349,191 | — | — | 2,349,191 | 31 | 175,922 | 94.5 | 94.5 | |||||||||||
San Francisco Bay Area | 7,680,005 | 394,781 | 366,939 | 8,441,725 | 65 | $443,345 | 93.3% | 89.1% | |||||||||||
Refer to “New Class A/A+ development and redevelopment properties: summary of pipeline” in Item 2 and “Megacampus” under “Definitions and reconciliations” in Item 7 for additional details. (1)We own a partial interest in this property through a real estate joint venture. Refer to “Consolidated and unconsolidated real estate joint ventures” in Item 7 for additional details. (2)We own 100% of this property. (3)During the three months ended December 31, 2024, we executed a letter of intent with a biomedical institution for the sale of a condominium interest aggregating 103,361 RSF, or approximately 49% of the development project, with the transaction expected to close in 2025. Accordingly, we adjusted the development project RSF and its related book value to reflect 109,435 RSF, with our ownership share expected to be 25% at completion of the project. Refer to “New Class A/A+ development and redevelopment properties: current projects” in Item 2 for additional details. | |||||||||||||||||||
Occupancy Percentage | |||||||||||||||||||
RSF | Number of Properties | Annual Rental Revenue | |||||||||||||||||
Operating | Operating and Redevelopment | ||||||||||||||||||
Market / Submarket / Address | Operating | Development | Redevelopment | Total | |||||||||||||||
San Diego | |||||||||||||||||||
Torrey Pines | |||||||||||||||||||
Megacampus: One Alexandria Square | 840,192 | 241,504 | — | 1,081,696 | 10 | $47,915 | 99.0% | 99.0% | |||||||||||
3115 and 3215(1) Merryfield Row, 3010, 3013, and 3033 Science Park Road, 10935, 10945, 10955, and 10970 Alexandria Way, 10996 Torreyana Road, and 3545 Cray Court | |||||||||||||||||||
ARE Torrey Ridge | 299,138 | — | — | 299,138 | 3 | 13,263 | 79.7 | 79.7 | |||||||||||
10578, 10618, and 10628 Science Center Drive | |||||||||||||||||||
ARE Nautilus | 218,459 | — | — | 218,459 | 4 | 12,184 | 97.7 | 97.7 | |||||||||||
3530 and 3550 John Hopkins Court and 3535 and 3565 General Atomics Court | |||||||||||||||||||
Torrey Pines | 1,357,789 | 241,504 | — | 1,599,293 | 17 | 73,362 | 94.5 | 94.5 | |||||||||||
University Town Center | |||||||||||||||||||
Megacampus: Campus Point by Alexandria(1) | 1,594,463 | 426,927 | — | 2,021,390 | 10 | 86,469 | 98.0 | 98.0 | |||||||||||
9880(2), 10210, 10260, 10290, and 10300 Campus Point Drive and 4135, 4155, 4161, 4224, and 4242 Campus Point Court | |||||||||||||||||||
Megacampus: 5200 Illumina Way(1) | 792,687 | — | — | 792,687 | 6 | 29,978 | 100.0 | 100.0 | |||||||||||
9625 Towne Centre Drive(1) | 163,648 | — | — | 163,648 | 1 | 6,520 | 100.0 | 100.0 | |||||||||||
University Town Center | 2,550,798 | 426,927 | — | 2,977,725 | 17 | 122,967 | 98.8 | 98.8 | |||||||||||
Sorrento Mesa | |||||||||||||||||||
Megacampus: SD Tech by Alexandria(1) | 878,805 | 253,079 | — | 1,131,884 | 12 | 39,988 | 93.6 | 93.6 | |||||||||||
9605, 9645, 9675, 9725, 9735, 9808, 9855, and 9868 Scranton Road, 5505 Morehouse Drive(2), and 10055, 10065, and 10075 Barnes Canyon Road | |||||||||||||||||||
Megacampus: Sequence District by Alexandria | 801,575 | — | — | 801,575 | 7 | 28,766 | 100.0 | 100.0 | |||||||||||
6260, 6290, 6310, 6340, 6350, 6420, and 6450 Sequence Drive | |||||||||||||||||||
Pacific Technology Park(1) | 544,352 | — | — | 544,352 | 5 | 9,352 | 92.8 | 92.8 | |||||||||||
9389, 9393, 9401, 9455, and 9477 Waples Street | |||||||||||||||||||
Summers Ridge Science Park(1) | 316,531 | — | — | 316,531 | 4 | 11,521 | 100.0 | 100.0 | |||||||||||
9965, 9975, 9985, and 9995 Summers Ridge Road | |||||||||||||||||||
Scripps Science Park by Alexandria | 144,113 | — | — | 144,113 | 1 | 11,379 | 100.0 | 100.0 | |||||||||||
10102 Hoyt Park Drive | |||||||||||||||||||
ARE Portola | 101,857 | — | — | 101,857 | 3 | 4,022 | 100.0 | 100.0 | |||||||||||
6175, 6225, and 6275 Nancy Ridge Drive | |||||||||||||||||||
5810/5820 Nancy Ridge Drive | 83,354 | — | — | 83,354 | 1 | 4,581 | 100.0 | 100.0 | |||||||||||
9877 Waples Street | 63,774 | — | — | 63,774 | 1 | 2,680 | 100.0 | 100.0 | |||||||||||
5871 Oberlin Drive | 33,842 | — | — | 33,842 | 1 | 1,909 | 100.0 | 100.0 | |||||||||||
Sorrento Mesa | 2,968,203 | 253,079 | — | 3,221,282 | 35 | $114,198 | 96.8% | 96.8% | |||||||||||
Refer to “New Class A/A+ development and redevelopment properties: summary of pipeline” in Item 2 and “Megacampus” under “Definitions and reconciliations” in Item 7 for additional details. (1)We own a partial interest in this property through a real estate joint venture. Refer to “Consolidated and unconsolidated real estate joint ventures” in Item 7 for additional details. (2)We own 100% of this property. | |||||||||||||||||||
Occupancy Percentage | |||||||||||||||||||
RSF | Number of Properties | Annual Rental Revenue | |||||||||||||||||
Operating | Operating and Redevelopment | ||||||||||||||||||
Market / Submarket / Address | Operating | Development | Redevelopment | Total | |||||||||||||||
San Diego (continued) | |||||||||||||||||||
Sorrento Valley | |||||||||||||||||||
3911, 3931, and 3985 Sorrento Valley Boulevard | 151,406 | — | — | 151,406 | 6 | $3,970 | 54.0% | 54.0% | |||||||||||
11045 and 11055 Roselle Street | 43,233 | — | — | 43,233 | 2 | 2,203 | 100.0 | 100.0 | |||||||||||
Sorrento Valley | 194,639 | — | — | 194,639 | 8 | 6,173 | 64.2 | 64.2 | |||||||||||
Other | 311,021 | — | — | 311,021 | 2 | 10,225 | 100.0 | 100.0 | |||||||||||
San Diego | 7,382,450 | 921,510 | — | 8,303,960 | 79 | 326,925 | 96.3 | 96.3 | |||||||||||
Seattle | |||||||||||||||||||
Lake Union | |||||||||||||||||||
Megacampus: Alexandria Center® for Life Science – Eastlake | 1,152,644 | — | — | 1,152,644 | 9 | 77,461 | 95.6 | 95.6 | |||||||||||
1150, 1201(1), 1208(1), 1551, 1600, and 1616 Eastlake Avenue East, 188 and 199(1) East Blaine Street, and 1600 Fairview Avenue East | |||||||||||||||||||
Megacampus: Alexandria Center® for Life Science – South Lake Union | 381,380 | 227,577 | — | 608,957 | 3 | 21,890 | 99.6 | 99.6 | |||||||||||
400(1) and 701 Dexter Avenue North and 428 Westlake Avenue North | |||||||||||||||||||
219 Terry Avenue North | 31,797 | — | — | 31,797 | 1 | 1,339 | 56.9 | 56.9 | |||||||||||
Lake Union | 1,565,821 | 227,577 | — | 1,793,398 | 13 | 100,690 | 95.8 | 95.8 | |||||||||||
Elliott Bay | |||||||||||||||||||
410 West Harrison Street and 410 Elliott Avenue West | 20,101 | — | — | 20,101 | 2 | 710 | 100.0 | 100.0 | |||||||||||
Bothell | |||||||||||||||||||
Megacampus: Alexandria Center® for Advanced Technologies – Canyon Park | 1,061,778 | — | — | 1,061,778 | 22 | 21,482 | 87.7 | 87.7 | |||||||||||
22121 and 22125 17th Avenue Southeast, 22021, 22025, 22026, 22030, 22118, and 22122 20th Avenue Southeast, 22333, 22422, 22515, 22522, 22722, and 22745 29th Drive Southeast, 21540, 22213, and 22309 30th Drive Southeast, and 1629, 1631, 1725, 1916, and 1930 220th Street Southeast | |||||||||||||||||||
Alexandria Center® for Advanced Technologies – Monte Villa Parkway | 463,449 | — | — | 463,449 | 6 | 12,290 | 90.3 | 90.3 | |||||||||||
3301, 3303, 3305, 3307, 3555, and 3755 Monte Villa Parkway | |||||||||||||||||||
Bothell | 1,525,227 | — | — | 1,525,227 | 28 | 33,772 | 88.5 | 88.5 | |||||||||||
Other | 75,663 | — | — | 75,663 | 2 | 842 | 98.5 | 98.5 | |||||||||||
Seattle | 3,186,812 | 227,577 | — | 3,414,389 | 45 | $136,014 | 92.4% | 92.4% | |||||||||||
Refer to “New Class A/A+ development and redevelopment properties: summary of pipeline” in Item 2 and “Megacampus” under “Definitions and reconciliations” in Item 7 for additional details. (1)We own a partial interest in this property through a real estate joint venture. Refer to “Consolidated and unconsolidated real estate joint ventures” in Item 7 for additional details. | |||||||||||||||||||
Occupancy Percentage | |||||||||||||||||||
RSF | Number of Properties | Annual Rental Revenue | |||||||||||||||||
Operating | Operating and Redevelopment | ||||||||||||||||||
Market / Submarket / Address | Operating | Development | Redevelopment | Total | |||||||||||||||
Maryland | |||||||||||||||||||
Rockville | |||||||||||||||||||
Megacampus: Alexandria Center® for Life Science – Shady Grove | 1,692,350 | — | — | 1,692,350 | 20 | $79,076 | 97.5% | 97.5% | |||||||||||
9601, 9603, 9605, 9704, 9708, 9712, 9714, 9800, 9804, 9808, 9900, and 9950 Medical Center Drive, 14920 and 15010 Broschart Road, 9920 Belward Campus Drive, and 9810 and 9820 Darnestown Road | |||||||||||||||||||
1330 Piccard Drive | 131,508 | — | — | 131,508 | 1 | 4,323 | 100.0 | 100.0 | |||||||||||
1405 and 1450(1) Research Boulevard | 114,849 | — | — | 114,849 | 2 | 3,029 | 73.3 | 73.3 | |||||||||||
1500 and 1550 East Gude Drive | 91,359 | — | — | 91,359 | 2 | 1,844 | 100.0 | 100.0 | |||||||||||
5 Research Place | 63,852 | — | — | 63,852 | 1 | 3,082 | 100.0 | 100.0 | |||||||||||
5 Research Court | 51,520 | — | — | 51,520 | 1 | 1,976 | 100.0 | 100.0 | |||||||||||
12301 Parklawn Drive | 49,185 | — | — | 49,185 | 1 | 1,598 | 100.0 | 100.0 | |||||||||||
Rockville | 2,194,623 | — | — | 2,194,623 | 28 | 94,928 | 96.7 | 96.7 | |||||||||||
Gaithersburg | |||||||||||||||||||
Alexandria Technology Center® – Gaithersburg I | 619,061 | — | — | 619,061 | 9 | 19,603 | 93.6 | 93.6 | |||||||||||
9, 25, 35, 45, 50, and 55 West Watkins Mill Road and 910, 930, and 940 Clopper Road | |||||||||||||||||||
Alexandria Technology Center® – Gaithersburg II | 486,301 | — | — | 486,301 | 7 | 18,816 | 100.0 | 100.0 | |||||||||||
700, 704, and 708 Quince Orchard Road and 19, 20, 21, and 22 Firstfield Road | |||||||||||||||||||
20400 Century Boulevard | 81,006 | — | — | 81,006 | 1 | 2,107 | 100.0 | 100.0 | |||||||||||
401 Professional Drive | 63,154 | — | — | 63,154 | 1 | 1,949 | 90.1 | 90.1 | |||||||||||
950 Wind River Lane | 50,000 | — | — | 50,000 | 1 | 1,234 | 100.0 | 100.0 | |||||||||||
620 Professional Drive | 27,950 | — | — | 27,950 | 1 | 1,207 | 100.0 | 100.0 | |||||||||||
Gaithersburg | 1,327,472 | — | — | 1,327,472 | 20 | 44,916 | 96.6 | 96.6 | |||||||||||
Beltsville | |||||||||||||||||||
8000/9000/10000 Virginia Manor Road | 191,884 | — | — | 191,884 | 1 | 2,974 | 97.7 | 97.7 | |||||||||||
101 West Dickman Street(1) | 135,949 | — | — | 135,949 | 1 | 1,214 | 69.9 | 69.9 | |||||||||||
Beltsville | 327,833 | — | — | 327,833 | 2 | 4,188 | 86.1 | 86.1 | |||||||||||
Maryland | 3,849,928 | — | — | 3,849,928 | 50 | 144,032 | 95.7 | 95.7 | |||||||||||
Research Triangle | |||||||||||||||||||
Research Triangle | |||||||||||||||||||
Megacampus: Alexandria Center® for Life Science – Durham | 2,214,887 | — | — | 2,214,887 | 16 | $55,242 | 97.6 | 97.6 | |||||||||||
6, 8, 10, 12, 14, 40, 41, 42, and 65 Moore Drive, 21, 25, 27, 29, and 31 Alexandria Way, 2400 Ellis Road, and 14 TW Alexander Drive | |||||||||||||||||||
Megacampus: Alexandria Center® for Advanced Technologies and AgTech – Research Triangle | 687,824 | — | — | 687,824 | 6 | 31,939 | 99.4 | 99.4 | |||||||||||
6, 8, 10, and 12 Davis Drive and 5 and 9 Laboratory Drive | |||||||||||||||||||
Megacampus: Alexandria Center® for Sustainable Technologies | 364,493 | — | — | 364,493 | 7 | $11,979 | 91.8% | 91.8% | |||||||||||
104, 108, 110, 112, and 114 TW Alexander Drive and 5 and 7 Triangle Drive | |||||||||||||||||||
Refer to “New Class A/A+ development and redevelopment properties: summary of pipeline” in Item 2 and “Megacampus” under “Definitions and reconciliations” in Item 7 for additional details. (1)We own a partial interest in this property through a real estate joint venture. Refer to “Consolidated and unconsolidated real estate joint ventures” in Item 7 for additional details. | |||||||||||||||||||
Occupancy Percentage | |||||||||||||||||||
RSF | Number of Properties | Annual Rental Revenue | |||||||||||||||||
Operating | Operating and Redevelopment | ||||||||||||||||||
Market / Submarket / Address | Operating | Development | Redevelopment | Total | |||||||||||||||
Research Triangle (continued) | |||||||||||||||||||
Research Triangle (continued) | |||||||||||||||||||
Alexandria Technology Center® – Alston | 155,731 | — | — | 155,731 | 3 | $4,126 | 94.7% | 94.7% | |||||||||||
100, 800, and 801 Capitola Drive | |||||||||||||||||||
Alexandria Innovation Center® – Research Triangle | 136,722 | — | — | 136,722 | 3 | 4,235 | 99.2 | 99.2 | |||||||||||
7010, 7020, and 7030 Kit Creek Road | |||||||||||||||||||
2525 East NC Highway 54 | 82,996 | — | — | 82,996 | 1 | 3,651 | 100.0 | 100.0 | |||||||||||
407 Davis Drive | 81,956 | — | — | 81,956 | 1 | 3,323 | 100.0 | 100.0 | |||||||||||
601 Keystone Park Drive | 77,595 | — | — | 77,595 | 1 | 2,313 | 100.0 | 100.0 | |||||||||||
Research Triangle | 3,802,204 | — | — | 3,802,204 | 38 | 116,808 | 97.4 | 97.4 | |||||||||||
New York City | |||||||||||||||||||
New York City | |||||||||||||||||||
Megacampus: Alexandria Center® for Life Science – New York City | 742,586 | — | — | 742,586 | 3 | 67,864 | 98.7 | 98.7 | |||||||||||
430 and 450 East 29th Street | |||||||||||||||||||
Alexandria Center® for Life Science – Long Island City | 179,188 | — | — | 179,188 | 1 | 5,670 | 45.7 | 45.7 | |||||||||||
30-02 48th Avenue | |||||||||||||||||||
New York City | 921,774 | — | — | 921,774 | 4 | 73,534 | 88.4 | 88.4 | |||||||||||
Texas | |||||||||||||||||||
Austin | |||||||||||||||||||
Megacampus: Intersection Campus | 1,525,359 | — | — | 1,525,359 | 12 | 39,955 | 99.2 | 99.2 | |||||||||||
507 East Howard Lane, 13011 McCallen Pass, 13813 and 13929 Center Lake Drive, and 12535, 12545, 12555, and 12565 Riata Vista Circle | |||||||||||||||||||
1001 Trinity Street and 1020 Red River Street | 198,972 | — | — | 198,972 | 2 | 895 | 100.0 | 100.0 | |||||||||||
Austin | 1,724,331 | — | — | 1,724,331 | 14 | 40,850 | 99.3 | 99.3 | |||||||||||
Greater Houston | |||||||||||||||||||
Alexandria Center® for Advanced Technologies at The Woodlands | 120,828 | — | 73,298 | 194,126 | 1 | 3,172 | 41.5 | 25.8 | |||||||||||
8800 Technology Forest Place | |||||||||||||||||||
Texas | 1,845,159 | — | 73,298 | 1,918,457 | 15 | 44,022 | 95.5 | 91.8 | |||||||||||
Canada | 888,189 | — | 139,311 | 1,027,500 | 11 | 19,661 | 95.9 | 82.9 | |||||||||||
Non-cluster/other markets | 349,099 | — | — | 349,099 | 10 | 15,027 | 72.5 | 72.5 | |||||||||||
North America, excluding properties held for sale | 39,165,855 | 2,176,718 | 2,180,558 | 43,523,131 | 381 | 2,079,932 | 94.6% | 89.7% | |||||||||||
Properties held for sale | 600,870 | — | — | 600,870 | 10 | 13,056 | 39.6% | 39.6% | |||||||||||
Total – North America | 39,766,725 | 2,176,718 | 2,180,558 | 44,124,001 | 391 | $2,092,988 | |||||||||||||
Year Ended December 31, | |||||||||
2024 | 2023 | ||||||||
Including Straight-Line Rent | Cash Basis | Including Straight-Line Rent | Cash Basis | ||||||
(Dollars per RSF) | |||||||||
Leasing activity: | |||||||||
Renewed/re-leased space(1) | |||||||||
Rental rate changes | 16.9% | 7.2% | 29.4% | 15.8% | |||||
New rates | $65.48 | $64.18 | $52.35 | $50.82 | |||||
Expiring rates | $56.01 | $59.85 | $40.46 | $43.87 | |||||
RSF | 3,888,139 | 3,046,386 | |||||||
Tenant improvements/leasing commissions | $46.89 | (2) | $26.09 | ||||||
Weighted-average lease term | 8.5 years | 8.7 years | |||||||
Developed/redeveloped/previously vacant space leased(3) | |||||||||
New rates | $59.44 | $57.34 | $65.66 | $59.74 | |||||
RSF | 1,165,815 | 1,259,686 | |||||||
Weighted-average lease term | 10.0 years | 13.8 years | |||||||
Leasing activity summary (totals): | |||||||||
New rates | $64.16 | $62.68 | $56.09 | $53.33 | |||||
RSF | 5,053,954 | 4,306,072 | |||||||
Weighted-average lease term | 8.9 years | 11.3 years | |||||||
Lease expirations(1) | |||||||||
Expiring rates | $53.82 | $57.24 | $43.84 | $45.20 | |||||
RSF | 5,005,638 | 5,027,773 | |||||||
Year | RSF | Percentage of Occupied RSF | Annual Rental Revenue (per RSF)(1) | Percentage of Annual Rental Revenue | ||||||||||||||
2025 | (2) | 3,708,195 | 10.0% | $45.91 | 8.2% | |||||||||||||
2026 | 2,826,993 | 7.7% | $50.73 | 6.9% | ||||||||||||||
2027 | 3,302,598 | 8.9% | $53.80 | 8.6% | ||||||||||||||
2028 | 3,944,440 | 10.7% | $49.78 | 9.5% | ||||||||||||||
2029 | 2,385,914 | 6.5% | $51.30 | 5.9% | ||||||||||||||
2030 | 3,144,561 | 8.5% | $43.11 | 6.5% | ||||||||||||||
2031 | 3,433,958 | 9.3% | $54.76 | 9.1% | ||||||||||||||
2032 | 1,005,689 | 2.7% | $58.96 | 2.9% | ||||||||||||||
2033 | 2,585,813 | 7.0% | $47.77 | 5.9% | ||||||||||||||
2034 | 3,304,105 | 8.9% | $66.90 | 10.6% | ||||||||||||||
Thereafter | 7,291,855 | 19.8% | $73.85 | 25.9% | ||||||||||||||
2025 Contractual Lease Expirations (in RSF) | Annual Rental Revenue (per RSF)(4) | ||||||||||||
Market | Leased | Negotiating/ Anticipating | Targeted for Future Development/ Redevelopment(1) | Remaining Expiring Leases(2) | Total(3) | ||||||||
Greater Boston | 127,804 | 99,201 | 25,312 | 364,741 | 617,058 | $42.40 | |||||||
San Francisco Bay Area | 245,347 | 184,286 | — | 308,637 | 738,270 | 73.49 | |||||||
San Diego | 144,673 | 18,813 | 278,606 | 202,285 | 644,377 | 20.58 | |||||||
Seattle | — | 12,237 | — | 177,932 | 190,169 | 25.16 | |||||||
Maryland | 51,593 | — | — | 141,349 | 192,942 | 26.28 | |||||||
Research Triangle | 11,632 | 16,334 | — | 170,938 | 198,904 | 44.71 | |||||||
New York City | — | 27,912 | — | 40,347 | 68,259 | 110.42 | |||||||
Texas | — | — | 198,972 | — | 198,972 | N/A | |||||||
Canada | 22,991 | — | — | 65,873 | 88,864 | 20.03 | |||||||
Non-cluster/other markets | — | — | — | 2,300 | 2,300 | 40.17 | |||||||
Subtotal | 604,040 | 358,783 | 502,890 | 1,474,402 | 2,940,115 | 41.78 | |||||||
Key 1Q25 lease expirations(5) | 23,522 | 112,831 | — | 631,727 | 768,080 | 61.67 | |||||||
Total | 627,562 | 471,614 | 502,890 | 2,106,129 | 3,708,195 | $45.91 | |||||||
Percentage of expiring leases | 17% | 13% | 14% | 56% | 100% | ||||||||
2026 Contractual Lease Expirations (in RSF) | Annual Rental Revenue (per RSF)(4) | ||||||||||||
Market | Leased | Negotiating/ Anticipating | Targeted for Future Development/ Redevelopment | Remaining Expiring Leases(2) | Total | ||||||||
Greater Boston | 46,858 | 9,874 | — | 391,196 | 447,928 | $54.42 | |||||||
San Francisco Bay Area | 1,619 | 4,753 | — | 511,665 | 518,037 | 66.72 | |||||||
San Diego | — | — | — | 822,140 | 822,140 | 49.60 | |||||||
Seattle | — | 18,205 | — | 102,551 | 120,756 | 43.62 | |||||||
Maryland | — | — | — | 321,676 | 321,676 | 23.61 | |||||||
Research Triangle | — | 19,753 | — | 115,221 | 134,974 | 45.64 | |||||||
New York City | — | 104,157 | — | 71,470 | 175,627 | 93.58 | |||||||
Texas | — | — | — | — | — | — | |||||||
Canada | — | 247,743 | — | — | 247,743 | 22.24 | |||||||
Non-cluster/other markets | — | — | — | 38,112 | 38,112 | 70.34 | |||||||
Total | 48,477 | 404,485 | — | 2,374,031 | 2,826,993 | $50.73 | |||||||
Percentage of expiring leases | 2% | 14% | 0% | 84% | 100% | ||||||||
Development and Redevelopment | |||||||||||||
Future Opportunities Subject to Market Conditions and Leasing | |||||||||||||
Operating | Under Construction | Priority Anticipated | Future | Subtotal | Total | ||||||||
Square footage | |||||||||||||
Operating | 39,165,855 | — | — | — | — | 39,165,855 | |||||||
New Class A/A+ development and redevelopment properties | — | 4,357,276 | 2,134,948 | 23,696,280 | 30,188,504 | 30,188,504 | |||||||
Future development and redevelopment square feet currently included in rental properties(1) | — | — | (213,524) | (2,843,150) | (3,056,674) | (3,056,674) | |||||||
Total square footage, excluding properties held for sale | 39,165,855 | 4,357,276 | 1,921,424 | 20,853,130 | 27,131,830 | 66,297,685 | |||||||
Properties held for sale | 600,870 | — | — | 2,390,856 | 2,390,856 | 2,991,726 | |||||||
Total square footage | 39,766,725 | 4,357,276 | 1,921,424 | 23,243,986 | 29,522,686 | 69,289,411 | (2) | ||||||
Investments in real estate | |||||||||||||
Gross book value as of December 31, 2024(3) | $28,878,752 | $3,893,557 | $510,372 | $4,452,537 | $8,856,466 | $37,735,218 | |||||||
Property | Submarket/Market | Date of Purchase | Number of Properties | Operating Occupancy | Square Footage | Purchase Price | |||||||||
Future Development(1) | Operating With Future Development/ Redevelopment(1) | ||||||||||||||
Completed during the year ended December 31, 2024: | |||||||||||||||
285, 299, 307, and 345 Dorchester Avenue (60% interest in consolidated JV)(2) | Seaport Innovation District/ Greater Boston | 1/30/24 | — | N/A | 1,040,000 | — | $155,321 | ||||||||
428 Westlake Avenue North | Lake Union/Seattle | 10/1/24 | 1 | 100% | — | 90,626 | 47,600 | ||||||||
Other | 46,490 | ||||||||||||||
Total 2024 acquisitions | $249,411 | ||||||||||||||
Property | Submarket/Market | Date of Sale | Interest Sold | RSF | Capitalization Rate | Capitalization Rate (Cash Basis) | Sales Price | Seller Financing(1) | Sales Price per RSF | Gain on Sale of Real Estate(2) | ||||||||||||||
Stabilized Properties | ||||||||||||||||||||||||
One Moderna Way | Route 128/Greater Boston | 12/17/24 | 100% | 722,130 | 8.5% | 6.3% | $369,439 | $512 | $— | |||||||||||||||
1165 Eastlake Avenue East | Lake Union/Seattle | 9/12/24 | 100% | 100,086 | 4.7% | 4.9% | 149,985 | $1,499 | 21,535 | |||||||||||||||
14225 Newbrook Drive | Northern Virginia/Maryland | 10/15/24 | 100% | 248,186 | 7.6% | 7.4% | 80,500 | $324 | 37,074 | |||||||||||||||
6040 George Watts Hill Drive | Research Triangle/Research Triangle | 12/10/24 | 100% | 149,585 | 8.0% | 7.1% | 93,500 | $625 | 5,004 | |||||||||||||||
Other | 90,121 | 9,621 | ||||||||||||||||||||||
783,545 | ||||||||||||||||||||||||
Properties with vacancy or significant near-term capital requirements | ||||||||||||||||||||||||
215 First Street | Cambridge/Greater Boston | 12/20/24 | 100% | 369,520 | (3) | (3) | 245,539 | (3) | (3) | — | ||||||||||||||
150 Second Street, and 11 Hurley Street | Cambridge/Greater Boston | 182,993 | ||||||||||||||||||||||
4755 and 4757 Nexus Center Drive and 4796 Executive Drive(4) | University Town Center/San Diego | 12/30/24 | 100% | 177,804 | (4) | (4) | 120,000 | (4) | $79,166 | $675 | 47,511 | |||||||||||||
219 East 42nd Street | New York City/New York City | 7/9/24 | 100% | 349,947 | N/A | N/A | 60,000 | $171 | — | |||||||||||||||
Other | 51,106 | 392 | ||||||||||||||||||||||
476,645 | ||||||||||||||||||||||||
Land and other | ||||||||||||||||||||||||
99 A Street | Seaport Innovation District/ Greater Boston | 3/8/24 | 100% | 235,000 | (5) | (5) | 13,350 | — | ||||||||||||||||
10048 and 10219 Meanley Drive and 10277 Scripps Ranch Boulevard | Sorrento Mesa/San Diego | 12/20/24 | 100% | 444,041 | (5) | (5) | 55,000 | 25,000 | — | |||||||||||||||
9444 Waples Street (50% consolidated JV) | Sorrento Mesa/San Diego | 12/23/24 | (6) | 149,000 | (6) | (6) | 31,000 | (6) | 8,175 | (6) | ||||||||||||||
Other(7) | (7) | 22,913 | (7) | (7) | ||||||||||||||||||||
122,263 | ||||||||||||||||||||||||
Total 2024 dispositions | $1,382,453 | $104,166 | $129,312 | |||||||||||||||||||||
Our share of 2024 dispositions, including amounts recognized in equity in earnings | $1,366,953 | $127,615 | (8) | |||||||||||||||||||||

2024 | 4Q24 | ||
$118M | $55M | ||
1.5M RSF | 602,593 RSF | ||
98% Occupied | |||
2025 | 1Q26–2Q28 | ||
$83M | $312M | ||
89% Leased/Negotiating | |||
Aggregating 4.4M RSF | |||
500 North Beacon Street and 4 Kingsbury Avenue(1) | 201 Brookline Avenue | 840 Winter Street | ||
Greater Boston/ Cambridge/Inner Suburbs | Greater Boston/Fenway | Greater Boston/Route 128 | ||
211,574 RSF | 512,749 RSF | 139,984 RSF | ||
100% Occupancy | 98% Occupancy | 100% Occupancy | ||
![]() | ![]() | ![]() |
10935, 10945, and 10955 Alexandria Way(2) | 4155 Campus Point Court | 9808 Medical Center Drive | ||
San Diego/Torrey Pines | San Diego/ University Town Center | Maryland/Rockville | ||
93,492 RSF | 171,102 RSF | 95,061 RSF | ||
100% Occupancy | 100% Occupancy | 69% Occupancy | ||
![]() | ![]() | ![]() |
Property/Market/Submarket | 4Q24 Delivery Date(1) | Our Ownership Interest | RSF Placed in Service | Occupancy Percentage(2) | Total Project | Unlevered Yields | ||||||||||||||||||||||||||
Prior to 1/1/24 | 1Q24 | 2Q24 | 3Q24 | 4Q24 | Total | Initial Stabilized | Initial Stabilized (Cash Basis) | |||||||||||||||||||||||||
RSF | Investment | |||||||||||||||||||||||||||||||
Development projects | ||||||||||||||||||||||||||||||||
99 Coolidge Avenue/Greater Boston/ Cambridge/Inner Suburbs | N/A | 75.0% | 43,568 | 72,846 | — | — | — | 116,414 | 100% | 320,809 | $468,000 | 7.1% | 7.0% | |||||||||||||||||||
500 North Beacon Street and 4 Kingsbury Avenue/Greater Boston/Cambridge/Inner Suburbs | 11/1/24 | 100% | — | 100,624 | 37,913 | — | 73,037 | 211,574 | 100% | 248,018 | 427,000 | 6.2 | 5.5 | |||||||||||||||||||
201 Brookline Avenue/Greater Boston/ Fenway | 10/30/24 | 99.0% | 451,967 | — | — | — | 60,782 | 512,749 | 98% | 512,749 | 787,000 | 7.3 | 6.6 | |||||||||||||||||||
10935, 10945, and 10955 Alexandria Way/ San Diego/Torrey Pines | 11/1/24 | 100% | — | — | — | — | 93,492 | 93,492 | 100% | 334,996 | 503,000 | 6.2 | 5.8 | |||||||||||||||||||
4155 Campus Point Court/San Diego/ University Town Center | 11/7/24 | 55.0% | — | — | — | — | 171,102 | 171,102 | 100% | 171,102 | 184,000 | 8.0 | 6.4 | |||||||||||||||||||
1150 Eastlake Avenue East/Seattle/Lake Union | N/A | 100% | 278,282 | — | 2,079 | 31,270 | — | 311,631 | 100% | 311,631 | 442,000 | 6.6 | 6.7 | |||||||||||||||||||
9810 Darnestown Road/Maryland/Rockville | N/A | 100% | — | — | 195,435 | — | — | 195,435 | 100% | 195,435 | 135,000 | 7.1 | 6.2 | |||||||||||||||||||
9820 Darnestown Road/Maryland/Rockville | N/A | 100% | — | — | — | 250,000 | — | 250,000 | 100% | 250,000 | 177,000 | 8.7 | 5.6 | |||||||||||||||||||
9808 Medical Center Drive/Maryland/ Rockville | 12/31/24 | 100% | 26,460 | — | 25,655 | 13,056 | 29,890 | 95,061 | 69% | 95,061 | 114,000 | 5.4 | 5.4 | |||||||||||||||||||
Redevelopment projects | ||||||||||||||||||||||||||||||||
840 Winter Street/Greater Boston/Route 128 | 11/22/24 | 100% | — | — | — | — | 139,984 | 139,984 | 100% | 168,214 | 224,000 | 7.9 | (3) | 6.7 | (3) | |||||||||||||||||
651 Gateway Boulevard/San Francisco Bay Area/South San Francisco | N/A | 50.0% | — | 44,652 | — | 22,365 | — | 67,017 | 100% | 326,706 | 487,000 | 5.0 | 5.1 | |||||||||||||||||||
Alexandria Center® for Advanced Technologies – Monte Villa Parkway/ Seattle/Bothell | 12/31/24 | 100% | 65,086 | 115,598 | — | — | 34,306 | 214,990 | 90% | 460,934 | 216,000 | 6.3 | 6.2 | |||||||||||||||||||
Canada | N/A | 100% | 44,862 | 9,725 | 23,900 | — | — | 78,487 | 100% | 250,790 | 113,000 | 6.4 | 6.3 | |||||||||||||||||||
Weighted average/total | 11/7/24 | 910,225 | 343,445 | 284,982 | 316,691 | 602,593 | 2,457,936 | 3,646,445 | $4,277,000 | 6.7% | 6.2% | |||||||||||||||||||||
99 Coolidge Avenue | 500 North Beacon Street and 4 Kingsbury Avenue(1) | 311 Arsenal Street | 401 Park Drive | |||
Greater Boston/ Cambridge/Inner Suburbs | Greater Boston/ Cambridge/Inner Suburbs | Greater Boston/ Cambridge/Inner Suburbs | Greater Boston/Fenway | |||
204,395 RSF | 36,444 RSF | 308,446 RSF | 137,675 RSF | |||
62% Leased/Negotiating | 92% Leased/Negotiating | 21% Leased/Negotiating | —% Leased/Negotiating | |||
![]() | ![]() | ![]() | ![]() |
421 Park Drive | 40, 50, and 60 Sylvan Road | 1450 Owens Street | 651 Gateway Boulevard | |||
Greater Boston/Fenway | Greater Boston/Route 128 | San Francisco Bay Area/ Mission Bay | San Francisco Bay Area/ South San Francisco | |||
392,011 RSF | 596,064 RSF | 109,435 RSF | 259,689 RSF | |||
13% Leased/Negotiating | 31% Leased/Negotiating(2) | —% Leased/Negotiating(3) | 21% Leased/Negotiating | |||
![]() | ![]() | ![]() | ![]() |
230 Harriet Tubman Way | 269 East Grand Avenue | 10935, 10945, and 10955 Alexandria Way(1) | 4135 Campus Point Court | |||
San Francisco Bay Area/ South San Francisco | San Francisco Bay Area/ South San Francisco | San Diego/Torrey Pines | San Diego/ University Town Center | |||
285,346 RSF | 107,250 RSF | 241,504 RSF | 426,927 RSF | |||
100% Leased | —% Leased/Negotiating | 100% Leased | 100% Leased | |||
![]() | ![]() | ![]() | ![]() |
10075 Barnes Canyon Road | 701 Dexter Avenue North | 8800 Technology Forest Place | ||
San Diego/Sorrento Mesa | Seattle/Lake Union | Texas/Greater Houston | ||
253,079 RSF | 227,577 RSF | 73,298 RSF | ||
70% Leased/Negotiating | —% Leased/Negotiating | 41% Leased/Negotiating | ||
![]() | ![]() | ![]() |
Property/Market/Submarket | Square Footage | Percentage | Occupancy(1) | |||||||||||||||||
Dev/Redev | In Service | CIP | Total | Leased | Leased/ Negotiating | Initial | Stabilized | |||||||||||||
Under construction | ||||||||||||||||||||
2025 stabilization | ||||||||||||||||||||
500 North Beacon Street and 4 Kingsbury Avenue/Greater Boston/ Cambridge/Inner Suburbs | Dev | 211,574 | 36,444 | 248,018 | 92% | 92% | 1Q24 | 2025 | ||||||||||||
230 Harriet Tubman Way/San Francisco Bay Area/South San Francisco | Dev | — | 285,346 | 285,346 | 100 | 100 | 1Q25 | 1Q25 | ||||||||||||
Canada | Redev | 111,479 | 139,311 | 250,790 | 73 | 75 | 3Q23 | 2025 | ||||||||||||
323,053 | 461,101 | 784,154 | 89 | 89 | ||||||||||||||||
2026 and beyond stabilization | ||||||||||||||||||||
One Hampshire Street/Greater Boston/Cambridge | Redev | — | 104,956 | 104,956 | — | — | 2027 | 2028 | ||||||||||||
311 Arsenal Street/Greater Boston/Cambridge/Inner Suburbs | Redev | 82,216 | (2) | 308,446 | 390,662 | 21 | 21 | 2027 | 2027 | |||||||||||
99 Coolidge Avenue/Greater Boston/Cambridge/Inner Suburbs | Dev | 116,414 | 204,395 | 320,809 | 40 | 62 | 4Q23 | 2026 | ||||||||||||
401 Park Drive/Greater Boston/Fenway(3) | Redev | — | 137,675 | 137,675 | — | — | 2026 | 2026 | ||||||||||||
421 Park Drive/Greater Boston/Fenway | Dev | — | 392,011 | 392,011 | 13 | 13 | 2026 | 2027 | ||||||||||||
40, 50, and 60 Sylvan Road/Greater Boston/Route 128 | Redev | — | 596,064 | 596,064 | 31 | 31 | 2026 | 2027 | ||||||||||||
Other/Greater Boston | Redev | — | 453,869 | 453,869 | — | — | (4) | 2027 | 2027 | |||||||||||
1450 Owens Street/San Francisco Bay Area/Mission Bay | Dev | — | 109,435 | 109,435 | — | — | (5) | 2026 | 2026 | |||||||||||
651 Gateway Boulevard/San Francisco Bay Area/South San Francisco | Redev | 67,017 | 259,689 | 326,706 | 21 | 21 | 1Q24 | 2027 | ||||||||||||
269 East Grand Avenue/San Francisco Bay Area/South San Francisco | Redev | — | 107,250 | 107,250 | — | — | 2026 | 2027 | ||||||||||||
10935, 10945, and 10955 Alexandria Way/San Diego/Torrey Pines | Dev | 93,492 | 241,504 | 334,996 | 100 | 100 | 4Q24 | 2026 | ||||||||||||
4135 Campus Point Court/San Diego/University Town Center | Dev | — | 426,927 | 426,927 | 100 | 100 | 2026 | 2026 | ||||||||||||
10075 Barnes Canyon Road/San Diego/Sorrento Mesa | Dev | — | 253,079 | 253,079 | 70 | 70 | 2025 | 2026 | ||||||||||||
701 Dexter Avenue North/Seattle/Lake Union | Dev | — | 227,577 | 227,577 | — | — | 2026 | 2027 | ||||||||||||
8800 Technology Forest Place/Texas/Greater Houston | Redev | 50,094 | 73,298 | 123,392 | 41 | 41 | 2Q23 | 2026 | ||||||||||||
409,233 | 3,896,175 | 4,305,408 | 35 | 37 | ||||||||||||||||
732,286 | 4,357,276 | 5,089,562 | 43% | 45% | ||||||||||||||||
(1)Initial occupancy dates are subject to leasing and/or market conditions. Stabilized occupancy may vary depending on single tenancy versus multi-tenancy. Multi-tenant projects may increase in occupancy over a period of time. (2)We expect to redevelop an additional 25,312 RSF of space occupied as of December 31, 2024 into laboratory space upon expiration of the existing leases through the second half of 2025. Refer to “Investments in real estate” under “Definitions and reconciliations” in Item 7 for additional information. (3)During the three months ended December 31, 2024, we shifted the strategy of our 401 Park Drive redevelopment project to focus on the largest, most significant phase of the project. This phase aggregated 137,675 RSF and is expected to initially deliver and stabilize in 2026. Accordingly, we placed the less significant portion of the project that aggregated 22,284 RSF back into operations. (4)Represents a project focused on demand from our existing tenants in our adjacent properties/campuses that will address demand from other non-Alexandria properties/campuses. (5)Represents a multi-tenant project expanding our existing Alexandria Center® for Science and Technology – Mission Bay Megacampus, where our joint venture partner will fund 100% of the construction cost until it attains an ownership interest of 75%, after which it will contribute its respective share of additional capital. During the three months ended December 31, 2024, we executed a letter of intent with a biomedical institution for the sale of a condominium interest aggregating 103,361 RSF, or approximately 49% of the development project, with the transaction expected to close in 2025. Accordingly, we adjusted the development project RSF and its related book value to reflect 109,435 RSF, with our ownership share expected to be 25% at completion of the project. | ||||||||||||||||||||
Our Ownership Interest | At 100% | Unlevered Yields | |||||||||||||||||
Property/Market/Submarket | In Service | CIP | Cost to Complete | Total at Completion | Initial Stabilized | Initial Stabilized (Cash Basis) | |||||||||||||
Under construction | |||||||||||||||||||
2025 stabilization | |||||||||||||||||||
500 North Beacon Street and 4 Kingsbury Avenue/Greater Boston/ Cambridge/Inner Suburbs | 100% | $378,021 | $37,026 | $11,953 | $427,000 | 6.2% | 5.5% | ||||||||||||
230 Harriet Tubman Way/San Francisco Bay Area/South San Francisco | 48.2% | — | 404,591 | 105,409 | 510,000 | 7.4% | 6.4% | ||||||||||||
Canada | 100% | 50,235 | 51,596 | 11,169 | 113,000 | 6.4% | 6.3% | ||||||||||||
428,256 | 493,213 | ||||||||||||||||||
2026 and beyond stabilization(1) | |||||||||||||||||||
One Hampshire Street/Greater Boston/Cambridge | 100% | — | 164,957 | TBD | |||||||||||||||
311 Arsenal Street/Greater Boston/Cambridge/Inner Suburbs | 100% | 60,649 | 240,342 | ||||||||||||||||
99 Coolidge Avenue/Greater Boston/Cambridge/Inner Suburbs | 75.0% | 136,635 | 196,917 | 134,448 | 468,000 | 7.1% | 7.0% | ||||||||||||
401 Park Drive/Greater Boston/Fenway | 100% | — | 151,301 | TBD | |||||||||||||||
421 Park Drive/Greater Boston/Fenway | 99.8% | — | 463,079 | ||||||||||||||||
40, 50, and 60 Sylvan Road/Greater Boston/Route 128 | 100% | — | 449,484 | ||||||||||||||||
Other/Greater Boston | 100% | — | 151,464 | ||||||||||||||||
1450 Owens Street/San Francisco Bay Area/Mission Bay | 25.1% | — | 121,957 | ||||||||||||||||
651 Gateway Boulevard/San Francisco Bay Area/South San Francisco | 50.0% | 87,376 | 258,708 | 140,916 | 487,000 | 5.0% | 5.1% | ||||||||||||
269 East Grand Avenue/San Francisco Bay Area/South San Francisco | 100% | — | 66,184 | TBD | |||||||||||||||
10935, 10945, and 10955 Alexandria Way/San Diego/Torrey Pines | 100% | 100,944 | 323,993 | 78,063 | 503,000 | 6.2% | 5.8% | ||||||||||||
4135 Campus Point Court/San Diego/University Town Center | 55.0% | — | 347,039 | 176,961 | 524,000 | 6.6% | 6.2% | ||||||||||||
10075 Barnes Canyon Road/San Diego/Sorrento Mesa | 50.0% | — | 183,733 | 137,267 | 321,000 | 5.5% | 5.7% | ||||||||||||
701 Dexter Avenue North/Seattle/Lake Union | 100% | — | 234,908 | TBD | |||||||||||||||
8800 Technology Forest Place/Texas/Greater Houston | 100% | 59,794 | 46,278 | 5,928 | 112,000 | 6.3% | 6.0% | ||||||||||||
445,398 | 3,400,344 | ||||||||||||||||||
$873,654 | $3,893,557 | $2,740,000 | (2) | $7,510,000 | (2) | ||||||||||||||
Our share of investment(2)(3) | $800,000 | $3,180,000 | $2,400,000 | $6,380,000 | |||||||||||||||
Refer to “Initial stabilized yield (unlevered)” under “Definitions and reconciliations” in Item 7 for additional information. (1)We expect to provide total estimated costs and related yields for each project with estimated stabilization in 2026 and beyond over the next several quarters. (2)Represents dollar amount rounded to the nearest $10 million and includes preliminary estimated amounts for projects listed as TBD. (3)Represents our share of investment based on our ownership percentage upon completion of development or redevelopment projects. | |||||||||||||||||||
Market Property/Submarket | Our Ownership Interest | Book Value | Square Footage | ||||||||||
Development and Redevelopment | Total(1) | ||||||||||||
Future Opportunities Subject to Market Conditions and Leasing | |||||||||||||
Under Construction | Priority Anticipated | Future | |||||||||||
Greater Boston | |||||||||||||
Megacampus: Alexandria Center® at One Kendall Square/Cambridge | 100% | $164,957 | 104,956 | — | — | 104,956 | |||||||
One Hampshire Street | |||||||||||||
Megacampus: The Arsenal on the Charles/Cambridge/Inner Suburbs | 100% | 288,993 | 344,890 | 25,312 | 34,157 | 404,359 | |||||||
311 Arsenal Street, 500 North Beacon Street, and 4 Kingsbury Avenue | |||||||||||||
Megacampus: 480 Arsenal Way and 446, 458, 500, and 550 Arsenal Street, and 99 Coolidge Avenue/Cambridge/Inner Suburbs | (2) | 285,870 | 204,395 | — | 902,000 | 1,106,395 | |||||||
446, 458, 500, and 550 Arsenal Street, and 99 Coolidge Avenue | |||||||||||||
Megacampus: Alexandria Center® for Life Science – Fenway/Fenway | (3) | 614,380 | 529,686 | — | — | 529,686 | |||||||
401 and 421 Park Drive | |||||||||||||
Megacampus: Alexandria Center® for Life Science – Waltham/Route 128 | 100% | 512,996 | 596,064 | — | 515,000 | 1,111,064 | |||||||
40, 50, and 60 Sylvan Road, and 35 Gatehouse Drive | |||||||||||||
Megacampus: Alexandria Center® at Kendall Square/Cambridge | 100% | 204,128 | — | — | 174,500 | 174,500 | |||||||
100 Edwin H. Land Boulevard | |||||||||||||
Megacampus: Alexandria Technology Square®/Cambridge | 100% | 7,907 | — | — | 100,000 | 100,000 | |||||||
Megacampus: 285, 299, 307, and 345 Dorchester Avenue/Seaport Innovation District | 60.0% | 288,527 | — | — | 1,040,000 | 1,040,000 | |||||||
10 Necco Street/Seaport Innovation District | 100% | 105,106 | — | — | 175,000 | 175,000 | |||||||
215 Presidential Way/Route 128 | 100% | 6,816 | — | — | 112,000 | 112,000 | |||||||
Other development and redevelopment projects | (4) | 405,145 | 453,869 | — | 1,365,496 | 1,819,365 | |||||||
$2,884,825 | 2,233,860 | 25,312 | 4,418,153 | 6,677,325 | |||||||||
Refer to “Megacampus” under “Definitions and reconciliations” in Item 7 for additional information. (1)Represents total square footage upon completion of development or redevelopment of one or more new Class A/A+ properties. Square footage presented includes the RSF of buildings currently in operation at properties that also have future development or redevelopment opportunities. Upon expiration of existing in-place leases, we have the intent to demolish or redevelop the existing property subject to market conditions and leasing. Refer to “Investments in real estate” under “Definitions and reconciliations” in Item 7 for additional information, including development and redevelopment square feet currently included in rental properties. (2)We have a 75.0% interest in 99 Coolidge Avenue aggregating 204,395 RSF and a 100% interest in 446, 458, 500, and 550 Arsenal Street aggregating 902,000 RSF. (3)We have a 100% interest in 401 Park Drive aggregating 137,675 RSF and a 99.8% interest in 421 Park Drive aggregating 392,011 RSF. (4)Includes a property in which we own a partial interest through a real estate joint venture. | |||||||||||||
Market Property/Submarket | Our Ownership Interest | Book Value | Square Footage | ||||||||||
Development and Redevelopment | Total(1) | ||||||||||||
Future Opportunities Subject to Market Conditions and Leasing | |||||||||||||
Under Construction | Priority Anticipated | Future | |||||||||||
San Francisco Bay Area | |||||||||||||
Megacampus: Alexandria Center® for Science and Technology – Mission Bay/ Mission Bay | 25.1% | $121,957 | (2) | 109,435 | (2) | — | — | 109,435 | |||||
1450 Owens Street | |||||||||||||
Alexandria Center® for Life Science – Millbrae/South San Francisco | 48.2% | 568,776 | 285,346 | 198,188 | 150,213 | 633,747 | |||||||
230 Harriet Tubman Way, 201 and 231 Adrian Road, and 6 and 30 Rollins Road | |||||||||||||
Megacampus: Alexandria Technology Center® – Gateway/South San Francisco | 50.0% | 285,334 | 259,689 | — | 291,000 | 550,689 | |||||||
651 Gateway Boulevard | |||||||||||||
Megacampus: Alexandria Center® for Advanced Technologies – South San Francisco/South San Francisco | 100% | 72,839 | 107,250 | — | 90,000 | 197,250 | |||||||
211(3) and 269 East Grand Avenue | |||||||||||||
Megacampus: Alexandria Center® for Advanced Technologies – Tanforan/South San Francisco | 100% | 406,586 | — | — | 1,930,000 | 1,930,000 | |||||||
1122, 1150, and 1178 El Camino Real | |||||||||||||
Megacampus: Alexandria Center® for Life Science – San Carlos/Greater Stanford | 100% | 455,849 | — | — | 1,497,830 | 1,497,830 | |||||||
960 Industrial Road, 987 and 1075 Commercial Street, and 888 Bransten Road | |||||||||||||
3825 and 3875 Fabian Way/Greater Stanford | 100% | 156,602 | — | — | 478,000 | 478,000 | |||||||
2100, 2200, 2300, and 2400 Geng Road/Greater Stanford | 100% | 37,264 | — | — | 240,000 | 240,000 | |||||||
Megacampus: 88 Bluxome Street/SoMa | 100% | 397,952 | — | — | 1,070,925 | 1,070,925 | |||||||
Other development and redevelopment projects | 100% | — | — | — | 56,924 | 56,924 | |||||||
$2,503,159 | 761,720 | 198,188 | 5,804,892 | 6,764,800 | |||||||||
Refer to “Megacampus” under “Definitions and reconciliations” in Item 7 for additional information. (1)Represents total square footage upon completion of development or redevelopment of one or more new Class A/A+ properties. Square footage presented includes the RSF of buildings currently in operation at properties that also have future development or redevelopment opportunities. Upon expiration of existing in-place leases, we have the intent to demolish or redevelop the existing property subject to market conditions and leasing. Refer to “Investments in real estate” under “Definitions and reconciliations” in Item 7 for additional information, including development and redevelopment square feet currently included in rental properties. (2)During the three months ended December 31, 2024, we executed a letter of intent with a biomedical institution for the sale of a condominium interest aggregating 103,361 RSF, or approximately 49% of the development project, with the transaction expected to close in 2025. Accordingly, we adjusted the development project RSF and its related book value to reflect 109,435 RSF, with our ownership share expected to be 25% at completion of the project. (3)We own a partial interest in this property through a real estate joint venture. Refer to Note 4 – “Consolidated and unconsolidated real estate joint ventures” to our consolidated financial statements in Item 15 for additional details. | |||||||||||||
Market Property/Submarket | Our Ownership Interest | Book Value | Square Footage | ||||||||||
Development and Redevelopment | Total(1) | ||||||||||||
Future Opportunities Subject to Market Conditions and Leasing | |||||||||||||
Under Construction | Priority Anticipated | Future | |||||||||||
San Diego | |||||||||||||
Megacampus: One Alexandria Square/Torrey Pines | 100% | $382,913 | 241,504 | — | 125,280 | 366,784 | |||||||
10935 and 10945 Alexandria Way and 10975 and 10995 Torreyana Road | |||||||||||||
Megacampus: Campus Point by Alexandria/University Town Center | 55.0% | 492,221 | 426,927 | 333,414 | 634,043 | 1,394,384 | |||||||
10010(2), 10140(2), 10210, and 10260 Campus Point Drive and 4135, 4161, 4165, and 4224 Campus Point Court | |||||||||||||
Megacampus: SD Tech by Alexandria/Sorrento Mesa | 50.0% | 346,929 | 253,079 | 250,000 | 243,845 | 746,924 | |||||||
9805 Scranton Road and 10075 Barnes Canyon Road | |||||||||||||
11255 and 11355 North Torrey Pines Road/Torrey Pines | 100% | 153,104 | — | 153,000 | 62,000 | 215,000 | |||||||
Megacampus: 5200 Illumina Way/University Town Center | 51.0% | 17,443 | — | — | 451,832 | 451,832 | |||||||
9625 Towne Centre Drive/University Town Center | 30.0% | 837 | — | — | 100,000 | 100,000 | |||||||
Megacampus: Sequence District by Alexandria/Sorrento Mesa | 100% | 46,323 | — | — | 1,798,915 | 1,798,915 | |||||||
6260, 6290, 6310, 6340, 6350, and 6450 Sequence Drive | |||||||||||||
Scripps Science Park by Alexandria/Sorrento Mesa | 100% | 42,417 | — | — | 154,308 | 154,308 | |||||||
10256 and 10260 Meanley Drive | |||||||||||||
4075 Sorrento Valley Boulevard/Sorrento Valley | 100% | 19,130 | — | — | 144,000 | 144,000 | |||||||
Other development and redevelopment projects | (3) | 76,843 | — | — | 475,000 | 475,000 | |||||||
$1,578,160 | 921,510 | 736,414 | 4,189,223 | 5,847,147 | |||||||||
Refer to “Megacampus” under “Definitions and reconciliations” in Item 7 for additional information. (1)Represents total square footage upon completion of development or redevelopment of one or more new Class A/A+ properties. Square footage presented includes RSF of buildings currently in operation at properties that also have inherent future development or redevelopment opportunities. Upon expiration of existing in-place leases, we have the intent to demolish or redevelop the existing property subject to market conditions and leasing. Refer to “Investments in real estate” under “Definitions and reconciliations” in Item 7 for additional information, including development and redevelopment square feet currently included in rental properties. (2)We have a 100% interest in this property. (3)Includes a property in which we own a partial interest through a real estate joint venture. | |||||||||||||
Market Property/Submarket | Our Ownership Interest | Book Value | Square Footage | ||||||||||
Development and Redevelopment | Total(1) | ||||||||||||
Future Opportunities Subject to Market Conditions and Leasing | |||||||||||||
Under Construction | Priority Anticipated | Future | |||||||||||
Seattle | |||||||||||||
Megacampus: Alexandria Center® for Life Science – South Lake Union/Lake Union | (2) | $516,743 | 227,577 | 869,000 | 188,400 | 1,284,977 | |||||||
601 and 701 Dexter Avenue North and 800 Mercer Street | |||||||||||||
1010 4th Avenue South/SoDo | 100% | 59,996 | — | — | 544,825 | 544,825 | |||||||
410 West Harrison Street/Elliott Bay | 100% | — | — | — | 91,000 | 91,000 | |||||||
Megacampus: Alexandria Center® for Advanced Technologies – Canyon Park/ Bothell | 100% | 18,066 | — | — | 230,000 | 230,000 | |||||||
21660 20th Avenue Southeast | |||||||||||||
Other development and redevelopment projects | 100% | 144,644 | — | — | 706,087 | 706,087 | |||||||
739,449 | 227,577 | 869,000 | 1,760,312 | 2,856,889 | |||||||||
Maryland | |||||||||||||
Megacampus: Alexandria Center® for Life Science – Shady Grove/Rockville | 100% | 22,593 | — | — | 296,000 | 296,000 | |||||||
9830 Darnestown Road | |||||||||||||
22,593 | — | — | 296,000 | 296,000 | |||||||||
Research Triangle | |||||||||||||
Megacampus: Alexandria Center® for Advanced Technologies and Agtech – Research Triangle/Research Triangle | 100% | 106,906 | — | 180,000 | 990,000 | 1,170,000 | |||||||
4 and 12 Davis Drive | |||||||||||||
Megacampus: Alexandria Center® for Life Science – Durham/Research Triangle | 100% | 158,277 | — | — | 2,060,000 | 2,060,000 | |||||||