Permit GraphShortlistSan Francisco building permits since 2000

Block 1525, lot 032

450 20th Ave

City’s use
Multi-Family Residential
Built
1979
Stories
2
Units
3
Rooms
6 bathrooms
Building
4,090 sq ft
Lot
2,996 sq ft
Zoning
RM1
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
Nov 13, 2025Completed
final sign-off Dec 2025
450 20th AvRmm Roofing Increroofing: t/o and disposal of (e) roof, install roof 200 sqft layer, nail down base. torch down.
Details
Permit
202511139519
Status
complete
Filed
Nov 13, 2025
Permit issued
Nov 13, 2025
Final sign-off
Dec 2, 2025
Declared cost
$10,000
Address
450 20th Av

reroofing: t/o and disposal of (e) roof, install roof 200 sqft layer, nail down base. torch down.

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$10,000
Oct 24, 2025Expired or cancelled
cancelled Jan 2026
450 20th AvAmex Roofing Dba Amex Constructionre-roofing with hot works.
Details
Permit
202510248107
Status
cancelled
Filed
Oct 24, 2025
Permit issued
Oct 24, 2025
Declared cost
$16,000
Address
450 20th Av

re-roofing with hot works.

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$16,000
Jun 23, 2025Completed
final sign-off Oct 2025
450 20th AvL R T Constructionunit 1, 2, 3. 4 bathroom remodel (2 on 2/f, 2 on 3/f), 3 kitchen remodel (2 on 2/f, 1 on 3/f), 3 subpanel.
Details
Permit
202506239214
Status
complete
Filed
Jun 23, 2025
Permit issued
Jun 24, 2025
Final sign-off
Oct 21, 2025
Declared cost
$58,000
Address
450 20th Av

unit 1, 2, 3. 4 bathroom remodel (2 on 2/f, 2 on 3/f), 3 kitchen remodel (2 on 2/f, 1 on 3/f), 3 subpanel.

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$58,000

Who worked here

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

Contractors
Amex Roofing Dba Amex Construction, L R T Construction, Rmm Roofing Inc

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