Permit Record

Alteration Residential

4323 20th St, San Francisco, Ca, 94114

Classificationotc alterations permitMultifamily Alteration
Reliable value$28,000
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)
12
Units (commercial)
Not in source
Floor area
Not in source
Parcel & enrichment
Parcel APN
2751 028
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
37.7574, -122.4362
Geocode confidence
95%
Geocode source
Not in source
Issued
May 15, 2026
Applied
May 15, 2026
Work class
Residential
Description
Source description

reroofing: remove the (e) roof and install modified bitumen with 2 layers of base. no hot works.

Status
Current status
finaled
Source status
complete
Finaled
Jun 18, 2026
Provenance
First seen by PermitCore
Jun 19, 2026 · 12:49 UTC
Last seen
Jun 20, 2026 · 21:21 UTC
Last changed
Jun 19, 2026 · 12:49 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

6 permits at this parcel (parcel 2751 028) · through May 15, 2026

  1. May 15, 2026This permitAlteration Residential · Finaled$28,000
  2. Dec 2, 20161446203246045Alteration Residential · Issued
  3. Nov 16, 20161443772246045Alteration Residential · Finaled$150,000
  4. Date not usable in source695989246045Alteration Residential · Expired$28,000
  5. Date not usable in source450086246045Alteration Residential · Expired$3,300
  6. Date not usable in source66322246045Alteration Residential · Expired$10,000

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

Developer details
Permit #
1749317246045
Canonical ID
6:1749317246045
Source permit ID
1749317246045
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