Permit GraphShortlistSan Francisco building permits since 2000

Block 2114, lot 001B

1911 20th Ave

City’s use
Single Family Residential
Built
1940
Stories
1
Units
1
Rooms
3 bedrooms, 3 bathrooms
Building
1,520 sq ft
Lot
1,816 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

3 permits filed for this property since 2000.

CompletedIn progressNever finaledExpired or cancelled
FiledOutcomeAddressContractorWork described on the permitDeclared cost
Feb 18, 2026Completed
final sign-off Feb 2026
1911 20th AvNew High Protection Roofingreroofing: flat roof only. flat 28 asphalt and paper, 80 torch down, modified bitumen granulate.
Details
Permit
202602186099
Status
complete
Filed
Feb 18, 2026
Permit issued
Feb 18, 2026
Final sign-off
Feb 25, 2026
Declared cost
$12,300
Address
1911 20th Av

reroofing: flat roof only. flat 28 asphalt and paper, 80 torch down, modified bitumen granulate.

Open the permit page

$12,300
Dec 23, 2009Completed
final sign-off Jun 2010
1911 20th Avadd guest room, family room & full bath on ground floor, convert (e) one bathroom to two new bathroom @ 2nd floor.
Details
Permit
200912233764
Status
complete
Filed
Dec 23, 2009
Permit issued
Dec 23, 2009
Final sign-off
Jun 18, 2010
Declared cost
$35,000
Address
1911 20th Av

add guest room, family room & full bath on ground floor, convert (e) one bathroom to two new bathroom @ 2nd floor.

Open the permit page

$35,000
Aug 25, 2005Completed
final sign-off Sep 2005
1911 20th AvStandardconstr/Standardroofreroofing
Details
Permit
200508251218
Status
complete
Filed
Aug 25, 2005
Permit issued
Aug 25, 2005
Final sign-off
Sep 14, 2005
Declared cost
$8,950
Address
1911 20th Av

reroofing

Open the permit page

$8,950

Who worked here

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

Contractors
New High Protection Roofing, Standardconstr/Standardroof

Find contractors for work like this

Starts from the last permit filed here; change it to describe your own project. Results cover single-family homes like this one.