Exhibit 21.1

SUBSIDIARY LIST (BY JURISDICTION)

California

San Francisco Bay Partners II, Ltd.

Connecticut

Bronxville West, LLC

Smithtown Galleria Associates Limited Partnership

Town Close Associates Limited Partnership

Delaware

650 North Sherman, LLC

1865 Broadway For-Sale, LLC

1865 Broadway Retail, LLC

4100 Massachusetts Avenue Solar, LLC

Alameda Financing, L.P.

Alexander City Park, LLC

AMP Apartments Subtenant, LLC

AMP Apartments, LLC

AMP Manager LLC

Archstone Communities LLC

Archstone DC Master Holdings LLC

Archstone DC One Holdings LLC

Archstone Del Mar Station LLC

Archstone East 39th Street (Nominee) GP LLC

Archstone East 39th Street (Nominee) LP

Archstone East 39th Street Holdings GP LLC

Archstone East 39th Street Holdings LP

Archstone East 39th Street Land LLC

Archstone East 39th Street Principal GP LLC

Archstone East 39th Street Principal LP

Archstone Grosvenor Tower GP LLC

Archstone Grosvenor Tower LP

Archstone Grosvenor Tower REIT GP LLC

Archstone Grosvenor Tower REIT LP

Archstone HoldCO CM LLC

Archstone Huntington Beach College Park LLC

Archstone Huntington Beach Member LLC

Archstone Legacy Place GP LLC

Archstone Legacy Place LP

Archstone Legacy Place REIT GP LLC

Archstone Legacy Place REIT LP

Archstone Lincoln Towers LLC

Archstone Master Property Holdings LLC

1

Archstone Multifamily Partners AC Asset Manager LLC

Archstone Multifamily Partners AC CM LLC

Archstone Multifamily Partners AC Funding GP LLC

Archstone Multifamily Partners AC Funding LP

Archstone Multifamily Partners AC GP LLC

Archstone Multifamily Partners AC Investor I LLC

Archstone Multifamily Partners AC Investor II LLC

Archstone Multifamily Partners AC JV Asset Manager LLC

Archstone Multifamily Partners AC JV CM LLC

Archstone Multifamily Partners AC JV GP LLC

Archstone Multifamily Partners AC JV Investor I LLC

Archstone Multifamily Partners AC JV LP

Archstone Multifamily Partners AC LP

Archstone Multifamily Series II LLC

Archstone Multifamily Series III LLC

Archstone Multifamily Series IV LLC

Archstone North Capitol Hill 2 GP LLC

Archstone North Capitol Hill 2 LP

Archstone North Capitol Hill GP LLC

Archstone North Capitol Hill LP

Archstone Northcreek LLC

Archstone Oak Creek I LLC

Archstone Oak Creek II LLC

Archstone Oakwood Toluca Hills LLC

Archstone Old Town Pasadena LLC

Archstone Parallel Residual JV 2, LLC

Archstone Parallel Residual JV, LLC

Archstone Parkland Gardens LLC

Archstone Property Holdings GP LLC

Archstone Property Holdings LLC

Archstone Redmond Campus LLC

Archstone Residual JV, LLC

Archstone San Bruno III LLC

Archstone San Bruno III-B LLC

Archstone San Mateo Holdings LP

Archstone Smith Corporate Holdings LLC

Archstone Studio 4041 GP LLC

Archstone Studio 4041 LP

Archstone Studio 4041 REIT GP LLC

Archstone Studio 4041 REIT LP

Archstone Texas Land Holdings LLC

Archstone Thousand Oaks LLC

Archstone Trademark JV, LLC

Archstone Tysons Corner LLC

Archstone Venice GP LLC

Archstone Venice LP

2

Archstone Venice REIT GP LLC

Archstone Venice REIT LP

Archstone Westbury (Nominee) GP LLC

Archstone Westbury (Nominee) LP

Archstone Westbury GP LLC

Archstone Westbury Holdings GP LLC

Archstone Westbury Holdings LP

Archstone Westbury LP

Archstone Westbury Principal GP LLC

Archstone Westbury Principal LP

Archstone-Smith Unitholder Services LLC

Aria at Laurel Hill, LLC

Arlington Square Financing, LLC

ASN 50th Street LLC

ASN Bear Hill LLC

ASN Calabasas I LLC

ASN Calabasas II LLC

ASN La Jolla Colony LLC

ASN Lake Mendota Investments LLC

ASN Long Beach LLC

ASN Los Feliz LLC

ASN Meadows at Russett I LLC

ASN Meadows at Russett II LLC

ASN Monument Park LLC

ASN Mountain View LLC

ASN Pasadena LLC

ASN Redmond Lakeview LLC

ASN Redmond Park LLC

ASN San Jose LLC

ASN Tanforan Crossing I LLC

ASN Tanforan Crossing II LLC

ASN Thousand Oaks Plaza LLC

ASN Walnut Ridge LLC

ASN Woodland Hills East LLC

AVA Arts District CM, LLC

AVA Arts District Developer, LLC

AVA Arts District GP, LLC

AVA Arts District TRS, LLC

AVA Arts District, L.P.

AVA Burbank Solar, LLC

AVA Capitol Hill, LLC

AVA Lawrence Street, LLC

AVA Ninth, L.P.

AVA Pacific Beach Solar, LLC

AVA Pasadena Solar, LLC

AVA SC I Solar, LLC

3

AVA SC II Solar, LLC

AVA Toluca Hills Solar, LLC

Avalon 645 North Grant, LLC

Avalon 657 North Grant, LLC

Avalon 210 Wall, LLC

Avalon 55 Ninth, LLC

Avalon 850 Boca, LLC

Avalon Alderwood CM, LLC

Avalon Alderwood MF, LLC

Avalon Alderwood MF Member, LLC

Avalon Alderwood Phase I, LLC

Avalon Alderwood PM, LLC

Avalon Alexander, LLC

Avalon Amityville, LLC

Avalon Arboretum, L.P.

Avalon Arundel Crossing, LLC

Avalon at 318 I Street, LLC

Avalon at 318 I Street Solar, LLC

Avalon at Ballston, LLC

Avalon at Diamond Heights, L.P.

Avalon at Florham Park, LLC

Avalon at Mission Bay III, L.P.

Avalon at Pacific Bay, L.P.

Avalon at Providence Park, LLC

Avalon at Stratford, LLC

Avalon Baker Ranch, L.P.

Avalon Ballard, LLC

Avalon Belltown, LLC

Avalon Bonterra, LLC

Avalon Bothell Commons, LLC

Avalon Brea Place, LLC

Avalon Brea Place Member, LLC

Avalon Brea Place (Phase I), LLC

Avalon Brea Place (Phase II), LLC

Avalon Burbank Solar, LLC

Avalon Burlington, LLC

Avalon Campbell Solar, LLC

Avalon Cerritos, L.P.

Avalon Chino Hills, L.P.

Avalon Columbia Pike, LLC

Avalon Columbus Circle, LLC

Avalon Columbus Circle Retail, LLC

Avalon Denver West, LLC

Avalon Doral, LLC

Avalon DownREIT V, L.P.

Avalon Dublin Station II, L.P.

4

Avalon East Harbor, LLC

Avalon Encino, L.P.

Avalon Exeter, LLC

Avalon Fair Lakes, LLC

Avalon Fairfax City, LLC

Avalon Foundry Row, LLC

Avalon Framingham, LLC

Avalon Glendora, L.P.

Avalon Gold, LLC

Avalon Great Neck, LLC

Avalon Green II, LLC

Avalon Grosvenor, L.P.

Avalon Hoboken, LLC

Avalon Hoboken TRS, LLC

Avalon Hoboken JV, LLC

Avalon Hollywood GP, LLC

Avalon Hollywood, L.P.

Avalon Hunt Valley, LLC

Avalon HVTC JV, LLC

Avalon Ironwood at Red Rocks, LLC

Avalon Irvine III, L.P.

Avalon Irvine, L.P.

Avalon Laurel, LLC

Avalon Marlborough, LLC

Avalon Merrick Park, LLC

Avalon Merrick Park Member, LLC

Avalon Milazzo, L.P.

Avalon Mission Oaks, L.P.

Avalon Monrovia, LLC

Avalon Morningside Fee, LLC

Avalon Morrison Park, L.P.

Avalon Mosaic II, LLC

Avalon Mosaic, LLC

Avalon Nashua, LLC

Avalon New Canaan, LLC

Avalon Newport, L.P.

Avalon Norden Place, LLC

Avalon North Creek, LLC

Avalon Oak Road, L.P.

Avalon Oak Road GP, LLC

Avalon Ocean Avenue, L.P.

Avalon Old Bridge, LLC

Avalon Ossining, LLC

Avalon Overlake, LLC

Avalon Overlake Phase II, LLC

Avalon Park Crest, LLC

5

Avalon Piscataway, LLC

Avalon Portico at Silver Spring Metro, LLC

Avalon Potomac Yard, LLC

Avalon Princeton, LLC

Avalon Princeton Solar, LLC

Avalon Public Market, L.P.

Avalon Public Market Parcel C, LLC

Avalon Queen Anne, LLC

Avalon Rancho Vallecitos, L.P.

Avalon Ridge at Wheatlands, LLC

Avalon Riverview I, LLC

Avalon Riverview North, LLC

Avalon Rockwell & Lanes, LLC

Avalon Roseland, LLC

Avalon Run, LLC

Avalon San Dimas, L.P.

Avalon SC Solar, LLC

Avalon Shipyard, LLC

Avalon Somers, LLC

Avalon Somerville Station Urban Renewal, LLC

Avalon SoMi, LLC

Avalon SoMi Investor, LLC

Avalon Stuart, LLC

Avalon Studio 77, L.P.

Avalon Teaneck, LLC

Avalon Toscana, LLC

Avalon Towers Bellevue, LLC

Avalon Towson, LLC

Avalon Union City, L.P.

Avalon Upper Falls Limited Partnership

Avalon Upper Falls, LLC

Avalon Villa Bonita, L.P.

Avalon Villa San Dimas, L.P.

Avalon Vista, L.P.

Avalon Vista Solar, LLC

Avalon Walnut Creek II, L.P.

Avalon Walnut Creek II GP, LLC

Avalon Watch, LLC

Avalon West Chelsea, LLC

Avalon West Hollywood, L.P.

Avalon West Long Branch, LLC

Avalon Westminster Promenade, LLC

Avalon White Plains II, LLC

Avalon Willoughby West, LLC

Avalon Wilshire, L.P.

Avalon Woodland Hills, L.P.

6

Avalon WP I, LLC

Avalon WP II, LLC

Avalon WP III, LLC

Avalon WP IV, LLC

Avalon WP V, LLC

Avalon WP VI, LLC

Avalon Yonkers ATI Site, LLC

Avalon Yonkers Sun Sites, LLC

AvalonBay BT Investor, LLC

AvalonBay Trade Zone Village, LLC

AVB-Griffin JV, LLC

AVB 1865 Broadway, LLC

AVB 1865 Developer, LLC

AVB Albemarle, LLC

AVB Albemarle Solar, LLC

AVB Balboa, LLC

AVB Bloomfield Station Urban Renewal, LLC

AVB Boonton Bondholder, LLC

AVB Bowery II, LLC

AVB Brandywine Member, LLC

AVB Cerritos, LLC

AVB Consulate, LLC

AVB Del Rey, L.P.

AVB Gallery Place Solar, LLC

AVB Glover Park, LLC

AVB Harbor Isle, LLC

AVB Harrison, LLC

AVB La Mesa GP LLC

AVB La Mesa II GP LLC

AVB La Mesa II LP

AVB La Mesa LP

AVB Legacy DownREIT, LLC

AVB Manager II, LLC

AVB Maple Leaf Apartments GP, LLC

AVB Maple Leaf Apartments Limited Partnership

AVB Maple Leaf REIT, LLC

AVB Market Common, LLC

AVB ME Investor, LLC

AVB Meadows, LLC

AVB Morningside Ground Tenant, LLC

AVB Morningside Park, LLC

AVB Morningside Tenant, LLC

AVB North Capitol Hill Solar, LLC

AVB NP II JV GP, LLC

AVB NP II JV Investor, LLC

AVB NY Investor, LLC

7

AVB NY Portfolio CM, LLC

AVB Opera Warehouse GP, LLC

AVB Opera Warehouse TRS, LLC

AVB Opera Warehouse, L.P.

AVB Prop Tech, LLC

AVB Residual Parallel II, LLC

AVB Santa Monica on Main GP LLC

AVB Santa Monica on Main LP

AVB Simi Valley GP LLC

AVB Simi Valley LP

AVB Southwest Berkeley GP LLC

AVB Southwest Berkeley LP

AVB Statesman, LLC

AVB Statesman Solar, LLC

AVB Studio City GP LLC

AVB Studio City III-A GP LLC

AVB Studio City III-A LP

AVB Studio City III-B GP LLC

AVB Studio City III-B LP

AVB Studio City III-C GP LLC

AVB Studio City III-C LP

AVB Studio City LP

AVB Trademark, LLC

AVB Tunlaw Gardens, LLC

AVB Van Ness Solar, LLC

AVB Walnut Creek GP LLC

AVB Walnut Creek LP

AVB Walnut Creek Station GP LLC

AVB Walnut Creek Station LP

AVB West Chelsea, LLC

AVB Willow Glen GP LLC

AVB Willow Glen LP

AVBQ, LLC

Bay Countrybrook L.P.

Bay Pacific Northwest, L.P.

Bellevue Financing, LLC

Bloomingdale Urban Renewal, LLC

Boonton Urban Renewal, LLC

Bowery Place I Low-Income Operator, LLC

Bowery Place I Manager, LLC

BPR Sudbury Development LLC

Brighton Avalon, LLC

Cahill Park Solar, LLC

CG-N Affordable LLC

CG-N Affordable Manager LLC

CG-S Affordable LLC

8

CG-S Affordable Manager LLC

Clinton Green North, LLC

Clinton Green South, LLC

Clinton Green Theatre, LLC

Courthouse Hill LLC

Crescent Financing, LLC

Crest Financing, L.P.

CVP II, LLC

CVP III, LLC

Darien Financing, LLC

Dermot Clinton Green, LLC

Doral AVB Member, LLC

Dublin Station Solar, LLC

Dublin Station II Solar, LLC

Eaves Artesia, L.P.

Eaves Burlington, LLC

Eaves Creekside Solar, LLC

Eaves OT Pasadena Solar, LLC

Eaves Pleasanton Solar, LLC

Eaves Rancho Solar, LLC

Eaves San Jose Solar, LLC

Eaves Warner Center Solar, LLC

Eaves WC Solar, LLC

Eaves WV Solar, LLC

Edgewater Financing, LLC

El Paseo Drive Land LLC

Fairfax Towers Financing, L.P.

Foster City Solar, LLC

Garden City Apartments, LLC

Garden City SF, LLC

Garden City Townhomes, LLC

Glen Cove Development LLC

Glen Cove II Development LLC

Hayes Valley, L.P.

Laurel Hill Private Sewer Treatment Facility, LLC

Legacy Holdings JV, LLC

Lexford Properties, L.P.

Maplewood Urban Renewal, LLC

Mark Pasadena Financing, L.P.

Mission Bay North Financing, L.P.

Montville Urban Renewal, LLC

Morrison Park Solar, LLC

Mountain View Middlefield Solar, LLC

MVP I, LLC

Newcastle Construction Management, LLC

Newcastle For Sale, LLC

9

Newcastle Joint Venture, LLC

Newcastle Multifamily Rental, LLC

North Bergen Residential Urban Renewal, LLC

North Bergen Retail Urban Renewal, LLC

North Point Apartments GP LLC

North Point Apartments Limited Partnership

North Point Holdings GP LLC

North Point Holdings LP

North Point II Apartments, LLC

North Point II JV, LP

North Point II REIT, LLC

North Point REIT LLC

Norwalk Retail, LLC

NYTA MF Investors, LLC

OEC Holdings LLC

PHVP I GP, LLC

PHVP I, LP

Pleasant Hill Manager, LLC

Pleasant Hill Transit Village Associates LLC

Princeton Thanet Road Urban Renewal, LLC

Quincy Avalon, LLC

Reservoir Community Partners, LLC

Ridgefield Park Urban Renewal, LLC

Roselle Park Urban Renewal, LLC

Roselle Park VP, LLC

San Bruno III Financing, L.P.

Saugus Avalon, LLC

Saugus Avalon Retail, LLC

Saugus Avalon CP Retail, LLC

Shady Grove Road Financing, LLC

Sheepshead Bay Road Lender, LLC

Sheepshead Bay Road Manager, LLC

Sheepshead Bay Road Owner, LLC

Sheepshead Bay Road Partner, LLC

Sheepshead Bay Road PM, LLC

Silicon Valley Financing, LLC

Smith Property Holdings Consulate L.L.C.

Smith Property Holdings Five (D.C.) L.P.

Smith Property Holdings One (D.C.) L.P.

Smith Property Holdings Reston Landing L.L.C.

Sudbury Land Avalon, LLC

Union Urban Renewal, LLC

Wesmont Station Residential I Urban Renewal, LLC

Wesmont Station Residential II Urban Renewal, LLC

Wesmont Station Retail I Urban Renewal, LLC

Wesmont Station Retail II Urban Renewal, LLC

10

West LA Commons, LLC

West Windsor Urban Renewal, LLC

Wharton Urban Renewal, LLC

Willow Glen Solar, LLC

Woburn Avalon, LLC

Woodland Hills Solar, LLC

District of Columbia

4100 Massachusetts Avenue Associates, L.P.

Maryland

Archstone

Archstone Inc.

Archstone Multifamily Series I Trust

Avalon 4100 Massachusetts Avenue, Inc.

Avalon Acton, Inc.

Avalon at Chestnut Hill, Inc.

Avalon at Great Meadow, Inc.

Avalon BFG, Inc.

Avalon Chase Glen, Inc.

Avalon Chase Grove, Inc.

Avalon Chino Hills Manager, Inc.

Avalon Cohasset, Inc.

Avalon Collateral, Inc.

Avalon Commons, Inc.

Avalon DownREIT V, Inc.

Avalon Fairway Hills I Associates

Avalon Fairway II, Inc.

Avalon Glendora Manager, Inc.

Avalon Grosvenor LLC

Avalon Hayes Valley Manager, Inc.

Avalon Mission Oaks Manager, Inc.

Avalon Natick, Inc.

Avalon Oaks, Inc.

Avalon Oaks West, Inc.

Avalon Promenade, Inc.

Avalon Public Market GP, Inc.

Avalon Sharon, Inc.

Avalon Studio 77 GP, Inc.

Avalon Symphony Woods, Inc.

Avalon Twinbrook Station, Inc.

Avalon Upper Falls Limited Dividend Corporation

Avalon West Hollywood Manager, Inc.

AvalonBay Assembly Row, Inc.

AvalonBay Construction Services, Inc.

11

AvalonBay Grosvenor, Inc.

AvalonBay NYC Development, Inc.

AvalonBay Traville, LLC

AVB Development Transactions, Inc.

AVB Northborough, Inc.

AVB Realty Management Services, Inc.

AVB Service Provider, Inc.

Bay Asset Group, Inc.

Bay Development Partners, Inc.

Bay GP, Inc.

Brandywine Apartments of Maryland, LLC

California Multiple Financing, Inc.

California San Bruno III Financing, Inc.

Easton Avalon, Inc.

Georgia Avenue, Inc.

Hingham Shipyard Avalon II, Inc.

Juanita Construction, Inc.

Lexington Ridge-Avalon, Inc.

Norwood Avalon, Inc.

Pomorum Holdings, Inc.

Smith Realty Company

Sudbury Avalon, Inc.

Massachusetts

855 Broadway Licensee, LLC

AvalonBay BFG Limited Partnership

New Jersey

Town Cove Jersey City Urban Renewal, Inc.

Town Run Associates

New York

Avalon Huntington Former S Corp

Virginia

Hillwood Square Mutual Association

Pomorum Renters Insurance Agency, LLC

FOREIGN ENTITIES:

Pomorum Insurance Company Ltd. (Bermuda)

Pomorum Renters Insurance Company, Ltd. (Bermuda)

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