Permit Record

Alteration Residential

21 Prospect Av, San Francisco, Ca, 94110

Classificationotc alterations permitResidential Alteration
Reliable value$8,000
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)
2
Units (commercial)
Not in source
Floor area
Not in source
Parcel & enrichment
Parcel APN
5611 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
2 family dwelling
Geocode & dates
Coordinates
37.7449, -122.4175
Geocode confidence
95%
Geocode source
Not in source
Issued
Mar 15, 2024
Applied
Feb 5, 2024
Work class
Residential
Description
Source description

revision to 202311271364 to eliminate psl beams for new plan. all othere areas keep per previous plans and permits approved.

Status
Current status
finaled
Source status
complete
Finaled
Apr 28, 2025
Provenance
First seen by PermitCore
May 2, 2026 · 23:53 UTC
Last seen
May 12, 2026 · 00:08 UTC
Last changed
May 12, 2026 · 00:08 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

9 permits at this parcel (parcel 5611 047) · Aug 7, 2006 – Mar 15, 2024

  1. Mar 15, 2024This permitAlteration Residential · Finaled$8,000
  2. Mar 15, 20241687648452209Alteration Residential · Finaled$8,000
  3. Dec 20, 20231683455452209Alteration Residential · Finaled$93,000
  4. Dec 20, 20231685009184715Alteration Residential · Finaled$93,000
  5. Oct 4, 20231679811452209Alteration Residential · Issued$66,000
  6. Dec 11, 20061077095452209Alteration Residential · Finaled
  7. Dec 11, 20061077094184715Alteration Residential · Finaled
  8. Aug 7, 20061062675184715Alteration Residential · Issued$16,000
  9. Aug 7, 20061062676452209Alteration Residential · Issued$16,000

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

Developer details
Permit #
1687646184715
Canonical ID
6:1687646184715
Source permit ID
1687646184715
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