Block 0064, lot 017

2100 Mason St

City’s use: Multi-Family Residential
Built: 1912
Stories: 3
Units: 6
Rooms: 6 bathrooms
Building: 4,470 sq ft
Lot: 1,607 sq ft
Zoning: RM2
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

5 permits filed for this property since 2000.

CompletedIn progressNever finaledExpired or cancelled

Filed	Outcome	Address	Contractor	Work described on the permit	Declared cost
Apr 8, 2026	Completed final sign-off May 2026	2100 Mason St	American Standard Roofing Inc	re-roofing. no hot works. Details Permit 202604089111 Status complete Filed Apr 8, 2026 Permit issued Apr 8, 2026 Final sign-off May 5, 2026 Declared cost $15,000 Address 2100 Mason St re-roofing. no hot works. Open the permit page	$15,000
Jun 25, 2015	Expired or cancelled cancelled Jan 2026	2100 Mason St		soft story seismic upgrade per sfbc ch 34b for commercial space on first floor. provide handicap access for commercial space, no change to exterior of bldg, compliance with da check list requirement. Details Permit 201506259922 Status cancelled Filed Jun 25, 2015 Declared cost $2,000 Address 2100 Mason St soft story seismic upgrade per sfbc ch 34b for commercial space on first floor. provide handicap access for commercial space, no change to exterior of bldg, compliance with da check list requirement. Open the permit page	$2,000
Feb 11, 2015	Completed final sign-off Aug 2018	2100 Mason St	Detail General Inc.Dba Detail Ironworks	soft story retrofit per sfbc chapter 34b, 2012 iebc appendix a-4, install steel brace frame on ground floor at front store opening, add shear walls, anchor bolts and hold downs per plans. Details Permit 201502118107 Status complete Filed Feb 11, 2015 Permit issued Oct 2, 2015 Final sign-off Aug 1, 2018 Declared cost $60,000 Address 2100 Mason St soft story retrofit per sfbc chapter 34b, 2012 iebc appendix a-4, install steel brace frame on ground floor at front store opening, add shear walls, anchor bolts and hold downs per plans. Open the permit page	$60,000
Mar 25, 2013	Never finaled issued Mar 2013, no final	2100 Mason St		street space permit Details Permit M380707 Status issued Filed Mar 25, 2013 Permit issued Mar 25, 2013 Address 2100 Mason St street space permit Open the permit page
Mar 21, 2013	Never finaled issued Mar 2013, no final	2100 Mason St		street space Details Permit M379967 Status issued Filed Mar 21, 2013 Permit issued Mar 21, 2013 Address 2100 Mason St street space Open the permit page

Who worked here

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

Contractors: American Standard Roofing Inc, Detail General Inc.Dba Detail Ironworks

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