Permit Record

Alteration Residential

309 Lyon St, San Francisco, Ca, 94117

Classificationadditions alterations or repairsResidential 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
1207 007
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
37.7738, -122.4428
Geocode confidence
95%
Geocode source
Not in source
Issued
Jan 4, 2007
Applied
Nov 29, 2006
Work class
Residential
Description
Source description

3r-3815 compliance upgrade. to comply with condo conversion.

Status
Current status
finaled
Source status
complete
Finaled
May 4, 2007
Provenance
First seen by PermitCore
May 2, 2026 · 23:14 UTC
Last seen
May 11, 2026 · 23:54 UTC
Last changed
May 11, 2026 · 23:54 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

7 permits at this parcel (parcel 1207 007) · through Jan 4, 2007

  1. Jan 4, 2007This permitAlteration Residential · Finaled$8,000
  2. Jan 4, 2007107588892379Alteration Residential · Finaled$8,000
  3. Mar 21, 200290486392379Alteration Residential · Expired$12,000
  4. Mar 21, 2002904865391673Alteration Residential · Expired$12,000
  5. Date not usable in source71504792379Alteration Residential · Finaled$12,000
  6. Date not usable in source6698592379Alteration Residential · Finaled$5,000
  7. Date not usable in source7239892379Alteration Residential · Finaled$29,000

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

Developer details
Permit #
1075887391673
Canonical ID
6:1075887391673
Source permit ID
1075887391673
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