Permit Record

Alteration Residential

990 Duncan St, San Francisco, Ca, 94131

Classificationadditions alterations or repairsMultifamily Alteration
Reliable value$30,000
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)
24
Units (commercial)
Not in source
Floor area
Not in source
Parcel & enrichment
Parcel APN
7517 181
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
37.7453, -122.4426
Geocode confidence
95%
Geocode source
Not in source
Issued
Jul 12, 2022
Applied
May 20, 2022
Work class
Residential
Description
Source description

modification to (e)fire alarm system.wireless swift gateway will be provided to broadcast a wireless mesh network for wireless communication between the(n)wireless applicances.new wirelss low frequency sounders will be added to meet sffc section1103.7.6.1 requirements for sleeping area notification.

Status
Current status
issued
Source status
issued
Provenance
First seen by PermitCore
May 2, 2026 · 23:52 UTC
Last seen
May 12, 2026 · 00:07 UTC
Last changed
May 12, 2026 · 00:07 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

11 permits at this parcel (parcel 7517 181) · through Jul 12, 2022

  1. Jul 12, 2022This permitAlteration Residential · Issued$30,000
  2. Apr 30, 20151377389253056Alteration Residential · Finaled$10,625
  3. Jun 9, 20091175696253056Alteration Residential · Issued
  4. Sep 22, 20061068436227062Alteration Residential · Expired$8,500
  5. Aug 23, 2001886273227062Alteration Residential · Finaled$275,000
  6. Nov 16, 2000836254227062Alteration Residential · Expired$100,700
  7. Date not usable in source857715227062Alteration Residential · Finaled
  8. Date not usable in source857672227062Alteration Residential · Expired$23,000
  9. Date not usable in source857421227062Alteration Residential · Expired$12,000
  10. Date not usable in source857259227062Alteration Residential · Finaled$5,000
  11. Date not usable in source857772227062Alteration Residential · Finaled$500

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

Developer details
Permit #
1643377253056
Canonical ID
6:1643377253056
Source permit ID
1643377253056
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