Permit GraphShortlistSan Francisco building permits since 2000

Block 1563, lot 040

512 21st Ave

City’s use
Single Family Residential
Built
1916
Stories
2
Units
1
Rooms
1 bathroom
Building
1,860 sq ft
Lot
2,060 sq ft
Zoning
RH2
Construction type
D

From the assessor's latest secured roll, which can lag recent work. Lot plans, zoning and planning history on the city’s Property Information Map

Permits filed here

3 permits filed for this property since 2000.

CompletedIn progressNever finaledExpired or cancelled
FiledOutcomeAddressContractorWork described on the permitDeclared cost
Aug 25, 2025In progress
filed Aug 2025, not yet issued
512 21st Avconvert storage on the garage level into an adu that includes: one bedroom, one living room,one 3-fixture bathroom & one kitchen. install a stackable washer/dryer. install a tankless water heater & a furnace. infill garage entry to enlarge garage.
Details
Permit
202508143079
Status
filed
Filed
Aug 25, 2025
Declared cost
$80,000
Address
512 21st Av

convert storage on the garage level into an adu that includes: one bedroom, one living room,one 3-fixture bathroom & one kitchen. install a stackable washer/dryer. install a tankless water heater & a furnace. infill garage entry to enlarge garage.

Open the permit page

$80,000
Aug 7, 2025In progress
issued May 2026
512 21st Av1st/f: convert garage to storage. 2nd/f: relocate kitchen & bedroom. rear stairs to be repaired & replace finish in kind
Details
Permit
202508072609
Status
issued
Filed
Aug 7, 2025
Permit issued
May 29, 2026
Declared cost
$150,000
Address
512 21st Av

1st/f: convert garage to storage. 2nd/f: relocate kitchen & bedroom. rear stairs to be repaired & replace finish in kind

Open the permit page

$150,000
May 14, 2025In progress
issued May 2026
512 21st Av3rd fl convert family room to bedroom. add a 3 fixture bath, remodel bath and install a stackable washer/dryer
Details
Permit
202505146491
Status
issued
Filed
May 14, 2025
Permit issued
May 29, 2026
Declared cost
$60,000
Address
512 21st Av

3rd fl convert family room to bedroom. add a 3 fixture bath, remodel bath and install a stackable washer/dryer

Open the permit page

$60,000

Who worked here

Everyone with a license on these permits, by role, with how many permits each is on.

Engineers
Jeff Chow (3)

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