Permit Record

Alteration Residential

1673 20th Av, San Francisco, Ca, 94122

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
1923 012
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
37.7566, -122.4780
Geocode confidence
95%
Geocode source
Not in source
Issued
Jun 4, 2003
Applied
Jun 4, 2003
Work class
Not in source
Description
Source description

address assignment

Status
Current status
issued
Source status
issued
Provenance
First seen by PermitCore
May 2, 2026 · 23:55 UTC
Last seen
May 12, 2026 · 00:18 UTC
Last changed
May 2, 2026 · 23:55 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

10 permits at this parcel (parcel 1923 012) · through Jun 4, 2003

  1. Jun 4, 2003This permitAlteration Residential · Issued
  2. Jun 4, 2003946189120635Alteration Residential · Issued
  3. Oct 25, 2002926451120635Alteration Residential · Issued
  4. Aug 29, 2002903053120635Alteration Residential · Finaled$200,000
  5. Date not usable in source605040120635Alteration Residential · Finaled$1,000
  6. Date not usable in source202983120635Alteration Residential · Finaled$3,000
  7. Date not usable in source133782120635Alteration Residential · Finaled$12,000
  8. Date not usable in source89065120635Alteration Residential · Expired$1,100
  9. Date not in source245433120635Alteration Residential · Withdrawn$3,000
  10. Date not in source8048120635Alteration Residential · Finaled$780

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

Developer details
Permit #
946188429313
Canonical ID
6:946188429313
Source permit ID
946188429313
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