Block 1561, lot 001A

505 18th Ave

City’s use: Single Family Residential
Built: 1918
Stories: 2
Units: 1
Rooms: 3 bedrooms, 2 bathrooms
Building: 2,080 sq ft
Lot: 2,060 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

8 permits filed for this property since 2000.

CompletedIn progressNever finaledExpired or cancelled

Filed	Outcome	Address	Contractor	Work described on the permit	Declared cost
Jan 14, 2026	Completed final sign-off Jan 2026	505 18th Av	Seismic Retrofitters Inc.	rear crawl space: behind garage. cripple wall bracing. 5/8 tr @ 32" o.c. 7" embedment, add 1/2" structural 1 ply nail 6" edge 12" field. install r30 in ceiling and cover with 5/8 type x drywall. 25-30 linear feet sw. Details Permit 202601143852 Status complete Filed Jan 14, 2026 Permit issued Jan 14, 2026 Final sign-off Jan 30, 2026 Declared cost $13,000 Address 505 18th Av rear crawl space: behind garage. cripple wall bracing. 5/8 tr @ 32" o.c. 7" embedment, add 1/2" structural 1 ply nail 6" edge 12" field. install r30 in ceiling and cover with 5/8 type x drywall. 25-30 linear feet sw. Open the permit page	$13,000
Apr 1, 2022	Completed final sign-off Jul 2022	505 18th Av	Jemico Llc Dba Renewal By Andersen Of Sf	replacing (1) patio door. non street visible. same size and location. u factor < 0.30 (e) wood door (n) wood door. Details Permit 202204011363 Status complete Filed Apr 1, 2022 Permit issued Apr 5, 2022 Final sign-off Jul 26, 2022 Declared cost $11,862 Address 505 18th Av replacing (1) patio door. non street visible. same size and location. u factor < 0.30 (e) wood door (n) wood door. Open the permit page	$11,862
Apr 28, 2009	Completed final sign-off Aug 2009	505 18th Av	Castle Construction Inc.	build habitable bedroom and bathroom in existing garage space. replace 2 center footings. lower floor from 7'0 to 7'6. no change in number of dwellings Details Permit 200904287240 Status complete Filed Apr 28, 2009 Permit issued Apr 29, 2009 Final sign-off Aug 27, 2009 Declared cost $25,000 Address 505 18th Av build habitable bedroom and bathroom in existing garage space. replace 2 center footings. lower floor from 7'0 to 7'6. no change in number of dwellings Open the permit page	$25,000
Jul 26, 2004	Never finaled issued Jul 2004, no final	505 18th Av		street space Details Permit M28477 Status issued Filed Jul 26, 2004 Permit issued Jul 26, 2004 Address 505 18th Av street space Open the permit page
Jul 21, 2004	Completed final sign-off Oct 2004	505 18th Av		new wood deck 10x10w/wood stair @ rear yard per/plan. remove (e) 6-6x5 window install 6-6x7 wood Details Permit 200407219429 Status complete Filed Jul 21, 2004 Permit issued Jul 21, 2004 Final sign-off Oct 20, 2004 Declared cost $5,000 Address 505 18th Av new wood deck 10x10w/wood stair @ rear yard per/plan. remove (e) 6-6x5 window install 6-6x7 wood Open the permit page	$5,000
Jul 21, 2004	Completed final sign-off Oct 2004	505 18th Av		repair/replace wood columns and beam at 9e) garage, reinstall two wood columns and one steel beam * Details Permit 200407219435 Status complete Filed Jul 21, 2004 Permit issued Jul 21, 2004 Final sign-off Oct 20, 2004 Declared cost $7,000 Address 505 18th Av repair/replace wood columns and beam at 9e) garage, reinstall two wood columns and one steel beam * Open the permit page	$7,000
Jul 9, 2004	Completed final sign-off Oct 2004	505 18th Av		modify closet space into bathroom on 2nd fl, reconfigure placement of barthroom, replace kitchen cab Details Permit 200407098403 Status complete Filed Jul 9, 2004 Permit issued Jul 9, 2004 Final sign-off Oct 20, 2004 Declared cost $10,000 Address 505 18th Av modify closet space into bathroom on 2nd fl, reconfigure placement of barthroom, replace kitchen cab Open the permit page	$10,000
Jun 24, 2004	Completed final sign-off Oct 2004	505 18th Av		replace windows @ rear of house (non visible from street)replace bathroom fixtures(sink/toilet) Details Permit 200406247280 Status complete Filed Jun 24, 2004 Permit issued Jun 24, 2004 Final sign-off Oct 20, 2004 Declared cost $10,000 Address 505 18th Av replace windows @ rear of house (non visible from street)replace bathroom fixtures(sink/toilet) Open the permit page	$10,000

Who worked here

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

Contractors: Castle Construction Inc., Jemico Llc Dba Renewal By Andersen Of Sf, Seismic Retrofitters Inc.

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