Permit Record

Alteration Residential

2435A 21st Av, San Francisco, Ca, 94116

Classificationadditions alterations or repairsResidential Alteration
Reliable valueNot in source
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
2404 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
37.7422, -122.4781
Geocode confidence
95%
Geocode source
Not in source
Issued
Nov 30, 2023
Applied
May 4, 2023
Work class
Residential
Description
Source description

revision to pa# 201910083802. reduce the adu addition @ rear of the building from 2 stories to a single story. 2 bedrooms, living room, kitchen & 1 bathroom.

Status
Current status
issued
Source status
issued
Provenance
First seen by PermitCore
May 2, 2026 · 23:52 UTC
Last seen
May 12, 2026 · 00:07 UTC
Last changed
May 12, 2026 · 00:07 UTC

Open in San Francisco source →

Data-quality checks1 of 12 flagged

1 of 12 data-quality checks flagged on this permit. Detail below.

Valuation is placeholder
valuation_usd_is_placeholder

valuation_usd matched a known placeholder (often 0 or 1) used by the source when the real valuation wasn't reported.

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
Project timeline at this parcel

17 permits at this parcel (parcel 2404 007) · through Nov 30, 2023

  1. Nov 30, 2023This permitAlteration Residential · Issued
  2. Nov 30, 20231667819134640Alteration Residential · Issued
  3. Nov 30, 20231667817134640Alteration Residential · Issued
  4. Feb 25, 20221636704520403ADU · Issued$98,000
  5. Feb 25, 20221571119134640ADU · Issued$98,000
  6. Feb 25, 20221571115134640Alteration Residential · Issued$576,000
  7. Mar 16, 20171456410134640Alteration Residential · Finaled$300
  8. Aug 30, 20101216533134640Alteration Residential · Finaled
  9. Mar 18, 20101200646134640Alteration Residential · Issued
  10. Aug 27, 2001884348134640Alteration Residential · Expired$9,000
  11. Jan 16, 2001866186134640Alteration Residential · Finaled$2,000
  12. Date not usable in source597814134640Alteration Residential · Finaled$1,001
  13. Date not usable in source591987134640Alteration Residential · Finaled
  14. Date not usable in source591522134640Alteration Residential · Finaled$10,000
  15. Date not usable in source252281134640Alteration Residential · Finaled$2,000
  16. Date not usable in source237011134640Alteration Residential · Finaled$7,000
  17. Date not usable in source234053134640Alteration Residential · Finaled$2,000

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

Developer details
Permit #
1667820520403
Canonical ID
6:1667820520403
Source permit ID
1667820520403
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