Permit GraphShortlistSan Francisco building permits since 2000

Block 3622, lot 087

3847 21st St

City’s use
Single Family Residential
Built
1900
Stories
2
Units
1
Rooms
4 bedrooms, 2 bathrooms
Building
2,392 sq ft
Lot
2,848 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

2 permits filed for this property since 2000.

CompletedIn progressNever finaledExpired or cancelled
FiledOutcomeAddressContractorWork described on the permitDeclared cost
Aug 14, 2025In progress
issued Dec 2025
3847 21st StPrecision Finish Remodeling Incremodel on the third floor of existing sfd (three stories and attic). including: demolition of fireplace and hearth, addition of bathroom, revisions to (e) bathroom and closet layout, new window openings in west facade and new finished througout the floor.
Details
Permit
202508143038
Status
issued
Filed
Aug 14, 2025
Permit issued
Dec 18, 2025
Declared cost
$40,000
Address
3847 21st St

remodel on the third floor of existing sfd (three stories and attic). including: demolition of fireplace and hearth, addition of bathroom, revisions to (e) bathroom and closet layout, new window openings in west facade and new finished througout the floor.

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$40,000
Jul 18, 2018Completed
final sign-off Sep 2018
3847 21st StCollier-Ostrom Enterpriseinkind repair of front stair treads (less than 50%); repair fungal damanged front treat & risers, replace in-kind w/pt wood less than 50 or less
Details
Permit
201807184870
Status
complete
Filed
Jul 18, 2018
Permit issued
Jul 18, 2018
Final sign-off
Sep 4, 2018
Declared cost
$5,000
Address
3847 21st St

inkind repair of front stair treads (less than 50%); repair fungal damanged front treat & risers, replace in-kind w/pt wood less than 50 or less

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$5,000

Who worked here

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

Contractors
Collier-Ostrom Enterprise, Precision Finish Remodeling Inc
Architects
James Westover

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