Permit Record

Alteration Residential

2121 Mason St, San Francisco, Ca, 94133

Classificationotc alterations permitResidential Alteration
Reliable value$25,000
ContractorNot in source
Permit record
Parties
Contractor
Not in source
Applicant
Not in source
Owner
Not in source
Architect
Not in source
Engineer
Not in source
Contractor license
Not in source
Building & lot · PLUTO
Building class
Not in source
Zoning district
Not in source
Lot area
Not in source
Year built
Not in source
Units (total)
Not in source
Units (residential)
2
Units (commercial)
Not in source
Floor area
Not in source
Parcel & enrichment
Parcel APN
0065 007
Climate zone (IECC)
3C
Roof area (est.)
Not derivable — no building-size signal for this permit
HVAC tonnage (est.)
Not derivable — no building-size signal for this permit
Building type
Not in source
Building subtype
2 family dwelling
Geocode & dates
Coordinates
37.8031, -122.4133
Geocode confidence
95%
Geocode source
Not in source
Issued
Dec 1, 2023
Applied
Nov 29, 2023
Work class
Residential
Description
Source description

add new shower and sink at basement level for 2121a

Status
Current status
finaled
Source status
complete
Finaled
Dec 12, 2023
Provenance
First seen by PermitCore
May 2, 2026 · 23:53 UTC
Last seen
May 12, 2026 · 00:08 UTC
Last changed
May 12, 2026 · 00:08 UTC

Open in San Francisco source →

Data-quality checks0 of 12 flagged

0 of 12 data-quality rules flagged anything on this permit.

Checks not flagged

  • Geocode out of bounds
  • Geocode is sentinel
  • Issued date in the future
  • Issued date parse bug
  • Issued date is placeholder
  • Commercial units is placeholder
  • Residential units out of bounds
  • Residential units is placeholder
  • Total units out of bounds
  • Total units is placeholder
  • Valuation out of bounds
  • Valuation is placeholder
Project timeline at this parcel

14 permits at this parcel (parcel 0065 007) · Feb 11, 2020 – Dec 1, 2023

  1. Dec 1, 2023This permitAlteration Residential · Finaled$25,000
  2. Dec 1, 20231683708516576Alteration Residential · Finaled$25,000
  3. Nov 30, 20231683726516621Alteration Residential · Finaled$28,192
  4. Nov 30, 20231683725516620Alteration Residential · Finaled$28,192
  5. Aug 29, 20221650596516621Alteration Residential · Issued$4,000
  6. Aug 24, 2022165033757440Alteration Residential · Finaled$4,000
  7. Jul 13, 20211620764516620Alteration Residential · Finaled$6,800
  8. Jul 13, 20211620765516621Alteration Residential · Finaled$6,800
  9. Jul 13, 20211620767516576Alteration Residential · Finaled$34,000
  10. Jul 13, 2021162076657440Alteration Residential · Finaled$34,000
  11. Feb 11, 20201585991516620Alteration Residential · Finaled$507,450
  12. Feb 11, 20201585332516576Alteration Residential · Finaled$507,450
  13. Feb 11, 20201585992516621Alteration Residential · Finaled$507,450
  14. Feb 11, 2020148216857440Alteration Residential · Finaled$507,450

Full permit history at this parcel · as of Jul 9, 2026.

Developer details
Permit #
168370757440
Canonical ID
6:168370757440
Source permit ID
168370757440
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