Permit GraphShortlistSan Francisco building permits since 2000

Block 6038, lot 033

421 Princeton St

City’s use
Single Family Residential
Built
1949
Stories
2
Units
1
Rooms
3 bedrooms, 2 bathrooms
Building
1,518 sq ft
Lot
1,750 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

1 permit filed for this property since 2000.

CompletedIn progressNever finaledExpired or cancelled
FiledOutcomeAddressContractorWork described on the permitDeclared cost
Jul 18, 2025Completed
final sign-off Sep 2026
421 Princeton StWei Dang Builders Inc.ground fl: convert (e) family room to a new office and bedroom. 2nd fl: remodel (e) kitchen, convert (e) half bath to a full bath. voluntary structural strengthening
Details
Permit
202507181188
Status
complete
Filed
Jul 18, 2025
Permit issued
Aug 1, 2025
Final sign-off
Sep 22, 2026
Declared cost
$80,000
Address
421 Princeton St

ground fl: convert (e) family room to a new office and bedroom. 2nd fl: remodel (e) kitchen, convert (e) half bath to a full bath. voluntary structural strengthening

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$80,000

Who worked here

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

Contractors
Wei Dang Builders Inc.
Engineers
Jian Huang

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