Permit Record

Alteration Residential

3494 21st St, San Francisco, Ca, 94110

ClassificationAlteration
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)
Not in source
Units (commercial)
Not in source
Floor area
Not in source
Parcel & enrichment
Parcel APN
3607 023
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
Not in source
Geocode & dates
Coordinates
37.7568, -122.4253
Geocode confidence
95%
Geocode source
Not in source
Issued
Nov 4, 2019
Applied
Nov 4, 2019
Work class
Not in source
Description
Source description

street space

Status
Current status
issued
Source status
issued
Provenance
First seen by PermitCore
May 2, 2026 · 23:52 UTC
Last seen
May 12, 2026 · 00:05 UTC
Last changed
May 2, 2026 · 23:52 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

24 permits at this parcel (parcel 3607 023) · through Nov 4, 2019

  1. Nov 4, 2019This permitAlteration Residential · Issued
  2. Aug 29, 20191565893161656Alteration Residential · Issued
  3. Jun 25, 20191557569161656Alteration Residential · Issued
  4. Jun 13, 20191556062161656Alteration Residential · Finaled$5,000
  5. Apr 22, 20191549407161656Alteration Residential · Issued
  6. Feb 21, 20191542164161656Alteration Residential · Issued
  7. Jan 15, 20191538016161656Alteration Residential · Issued
  8. Dec 26, 20181535226161656Alteration Residential · Finaled$3,000
  9. Dec 12, 20181534909161656Alteration Residential · Issued
  10. Sep 17, 20181524038161656Alteration Residential · Issued
  11. Jun 18, 20181511247161656Alteration Residential · Issued$150,000
  12. Jun 2, 20151383563161656Alteration Residential · Issued
  13. Aug 21, 20141351620161656Alteration Residential · Finaled$30,000
  14. May 7, 20141340084161656Alteration Residential · Finaled$10,000
  15. Aug 1, 20131312969161656Alteration Residential · Issued
  16. May 2, 20131302830161656Alteration Residential · Finaled$72,000
  17. Jun 25, 20121274307161656Alteration Residential · Issued
  18. Dec 13, 20111257628161656Alteration Residential · Issued
  19. Nov 21, 20111255170161656Alteration Residential · Finaled$35,301
  20. Oct 6, 20111251207161656Alteration Residential · Finaled$9,700
  21. Sep 27, 20111250890161656Alteration Residential · Finaled$1,000
  22. Date not usable in source470904161656Alteration Residential · Expired$6,500
  23. Date not usable in source278440161656Alteration Residential · Finaled$5,000
  24. Date not usable in source114488161656Alteration Commercial · Finaled$10,000

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

Developer details
Permit #
1574674161656
Canonical ID
6:1574674161656
Source permit ID
1574674161656
Browse San Francisco permits in the Market Explorer →Pull this permit via /v1/permits →