Permit Record

Alteration Residential

3441 20th St, San Francisco, Ca, 94110

Classificationadditions alterations or repairsMultifamily Alteration
Reliable value$1,500
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)
4
Units (commercial)
Not in source
Floor area
Not in source
Parcel & enrichment
Parcel APN
3610 047
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
apartments
Geocode & dates
Coordinates
37.7586, -122.4177
Geocode confidence
95%
Geocode source
Not in source
Issued
Not in source
Applied
Not in source
Work class
Residential
Description
Source description

to bring up to code

Status
Current status
finaled
Source status
complete
Finaled
Not in source
Provenance
First seen by PermitCore
May 2, 2026 · 23:55 UTC
Last seen
May 12, 2026 · 00:18 UTC
Last changed
May 12, 2026 · 00:18 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

28 permits at this parcel (parcel 3610 047) · through Sep 12, 2023

  1. Sep 12, 202316773151642Alteration Residential · Issued
  2. Sep 12, 20231677316449227Alteration Residential · Issued
  3. Apr 13, 20221640467248378Alteration Residential · Finaled$30,000
  4. Dec 15, 20211631991449227Alteration Residential · Finaled$77,700
  5. Dec 15, 20211631990248378Alteration Residential · Finaled$77,700
  6. Nov 1, 202116288051642Alteration Residential · Finaled$54,800
  7. Nov 1, 20211628806449227Alteration Residential · Finaled$54,800
  8. Apr 3, 20181500020449227Alteration Residential · Finaled$934,523
  9. Apr 3, 20181367259248378Alteration Residential · Finaled$934,523
  10. Feb 8, 20181496508248378Alteration Residential · Finaled$6,000
  11. Feb 8, 20181496509449227Alteration Residential · Finaled$6,000
  12. Jan 12, 20151367460369823Alteration Residential · Finaled$7,800
  13. Jan 12, 20151367350161933Alteration Residential · Finaled$7,800
  14. Dec 4, 20141364340369823Alteration Residential · Expired$28,000
  15. Aug 3, 20101213993248378Alteration Residential · Expired$41,873
  16. Aug 3, 20101213989161933Alteration Residential · Expired$41,873
  17. Dec 7, 20091192460161933Alteration Residential · Issued
  18. Mar 1, 20071084832430278Alteration Residential · Issued
  19. Jan 5, 20061039926248378Alteration Residential · Expired$4,500
  20. Jan 5, 20061039928449227Alteration Residential · Expired$4,500
  21. Jan 28, 2003933815161933Alteration Residential · Finaled
  22. Sep 4, 2002921188369823Alteration Residential · Expired$500
  23. Jul 17, 2002916260161933Alteration Residential · Finaled
  24. Dec 4, 2001895653161933Alteration Residential · Finaled$60,000
  25. Aug 29, 2001886759161933Alteration Residential · Finaled$170,000
  26. Date not usable in source777786369823Alteration Residential · Finaled$8,000
  27. Date not usable in source153618248378Alteration Residential · Finaled
  28. Date not usable in sourceThis permitAlteration Residential · Finaled$1,500

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

Developer details
Permit #
94309248378
Canonical ID
6:94309248378
Source permit ID
94309248378
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