Permit GraphShortlistSan Francisco building permits since 2000

Block 2028, lot 006

1739 21st Ave

City’s use
Single Family Residential
Built
1930
Stories
1
Units
1
Rooms
4 bedrooms, 1 bathroom
Building
1,784 sq ft
Lot
2,996 sq ft
Zoning
RH1
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

2 permits filed for this property since 2000.

CompletedIn progressNever finaledExpired or cancelled
FiledOutcomeAddressContractorWork described on the permitDeclared cost
Oct 31, 2025Completed
final sign-off Jan 2026
1739 21st AvZe Sheng Liaorevision to 202508284150, reduce scope of work delete kitchen work
Details
Permit
202510318672
Status
complete
Filed
Oct 31, 2025
Permit issued
Dec 15, 2025
Final sign-off
Jan 2, 2026
Address
1739 21st Av

revision to 202508284150, reduce scope of work delete kitchen work

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Aug 28, 2025Completed
final sign-off Jan 2026
1739 21st AvZe Sheng Liaoremodel kitchen and a bathroom. add a new bathroom on the 2nd floor. install a cooking area with a 4-burner cooktop and a sink with counter space at the 1/f in existing conditioned space.
Details
Permit
202508284150
Status
complete
Filed
Aug 28, 2025
Permit issued
Sep 24, 2025
Final sign-off
Jan 2, 2026
Declared cost
$40,000
Address
1739 21st Av

remodel kitchen and a bathroom. add a new bathroom on the 2nd floor. install a cooking area with a 4-burner cooktop and a sink with counter space at the 1/f in existing conditioned space.

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$40,000

Who worked here

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

Contractors
Ze Sheng Liao (2)
Architects
Andy Tan
Engineers
Andy Tan

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