Permit GraphShortlistSan Francisco building permits since 2000

Block 1526, lot 010

475 18th Ave

City’s use
Multi-Family Residential
Built
1921
Stories
2
Units
2
Rooms
2 bathrooms
Building
3,040 sq ft
Lot
2,996 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

6 permits filed for this property since 2000.

CompletedIn progressNever finaledExpired or cancelled
FiledOutcomeAddressContractorWork described on the permitDeclared cost
Sep 25, 2024Completed
final sign-off Jul 2025
475 18th AvH & Bo Construction Inc.rev 202307061618- to remove side windows and change the size of rear window in the sunroom, extend laundry room and add a laundry sink and adding a electric fireplace on the 2nd and 3rd floor units.
Details
Permit
202409251558
Status
complete
Filed
Sep 25, 2024
Permit issued
Sep 30, 2024
Final sign-off
Jul 16, 2025
Address
475 18th Av

rev 202307061618- to remove side windows and change the size of rear window in the sunroom, extend laundry room and add a laundry sink and adding a electric fireplace on the 2nd and 3rd floor units.

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Sep 25, 2024Completed
final sign-off Sep 2025
475 18th AvH & Bo Construction Inc.revision to adu 202304246350- to remove notes fire sprinkler on the site plan. fire sprinkler not required for this project and revised adu floor plan. proposed occupancy changed from r-2 to r-3.
Details
Permit
202409251560
Status
complete
Filed
Sep 25, 2024
Permit issued
Sep 30, 2024
Final sign-off
Sep 25, 2025
Address
475 18th Av

revision to adu 202304246350- to remove notes fire sprinkler on the site plan. fire sprinkler not required for this project and revised adu floor plan. proposed occupancy changed from r-2 to r-3.

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Mar 12, 2024Completed
final sign-off Sep 2025
475 18th AvH & Bo Construction Inc.revision to 202304246350. updating structural plans to match architectural blue beam approved plans
Details
Permit
202403127628
Status
complete
Filed
Mar 12, 2024
Permit issued
Mar 15, 2024
Final sign-off
Sep 25, 2025
Address
475 18th Av

revision to 202304246350. updating structural plans to match architectural blue beam approved plans

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Aug 9, 2023Never finaled
filed Aug 2023, never issued
475 18th AvH & Bo Construction Inc.remodel existing kitchen & existing bathroom at unit, same location
Details
Permit
202308094048
Status
filed
Filed
Aug 9, 2023
Declared cost
$2,500
Address
475 18th Av

remodel existing kitchen & existing bathroom at unit, same location

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$2,500
Jul 6, 2023Completed
final sign-off Sep 2025
475 18th AvH & Bo Construction Inc.interior remodel of existing two units on this permit (475-477 18th ave). adu under separate permit app #202304246350. ***no structural work under this permit***
Details
Permit
202307061618
Status
complete
Filed
Jul 6, 2023
Permit issued
Sep 6, 2024
Final sign-off
Sep 25, 2025
Declared cost
$300,000
Address
475 18th Av

interior remodel of existing two units on this permit (475-477 18th ave). adu under separate permit app #202304246350. ***no structural work under this permit***

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$300,000
Apr 24, 2023Completed
final sign-off Sep 2025
475 18th AvH & Bo Construction Inc.add a 2 bedrooms adu on the ground floor. and interior remodel of the exsiting two units under a separate permit.
Details
Permit
202304246350
Status
complete
Filed
Apr 24, 2023
Permit issued
Feb 26, 2024
Final sign-off
Sep 25, 2025
Declared cost
$200,000
Address
475 18th Av

add a 2 bedrooms adu on the ground floor. and interior remodel of the exsiting two units under a separate permit.

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$200,000

Who worked here

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

Contractors
H & Bo Construction Inc. (6)
Architects
George S. Sun (2)
Engineers
Michael Hom (3)
Authorized agent-otherss
George Sun (2)

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