Columba Anthony Duffy
- Based in
- San Rafael
- On San Francisco permits
- Sep 2001 to Aug 2026
- Last 24 months
- 2 permits filed
52 permits since 2000: 26 completed, 2 in progress, 4 never finaled, 20 expired or cancelled.
Of the 4 never-finaled permits, 1 is 5 to 10 years old, 3 are over 10 years old. 1 was filed but never issued.
This is the city’s permit record, not a license check. It does not show whether the state license is active, bonded or insured. How to read these records
Permits filed each year
How long permits take
Each point is the quarter the permits were filed, for stairs across San Francisco. A median counts only permits that have finished, so the shaded recent quarters look faster than they will end up: their slow permits have not finished yet. Hover a point for the slowest 10%. Gaps mean fewer than 5 permits. A rise in the issue line is the city’s review backlog, not the contractor. Too few of this contractor’s permits have finished to plot them.
Stairs permits
5 stairs permits: 2 completed, 3 expired or cancelled. Typically 242 days from filing to permit and 552 days from permit to final inspection.
| Filed | Outcome | Address | Work described on the permit | Declared cost |
|---|---|---|---|---|
| Jun 25, 2021 | Completed final sign-off Jan 2024 | 142 28th Av | at basement, create habitable space including a media room, full bathroom, mechanical room, and a new stair from the 1/f. on level 1, remodel the kitchen, remove a full bathroom and create a half bath. new laundry room at level 2. new windows/doorsDetails
at basement, create habitable space including a media room, full bathroom, mechanical room, and a new stair from the 1/f. on level 1, remodel the kitchen, remove a full bathroom and create a half bath. new laundry room at level 2. new windows/doors | $250,000 |
| Aug 22, 2013 | Expired or cancelled expired Jun 2025 | 2041 Pierce St | revision to 2012-09-06-9125. expand dormers. no change to front elevation. interior floor plan revisions to all levels. keep existing fire escape and remove interior rear stairs.Details
revision to 2012-09-06-9125. expand dormers. no change to front elevation. interior floor plan revisions to all levels. keep existing fire escape and remove interior rear stairs. | $15,000 |
| Sep 6, 2012 | Expired or cancelled expired Jun 2025 | 2041 Pierce St | entire bldg remodel of 5 unit bldg. to include 5 (n) kitchens & 5 (n) bathrooms. removal of fire escape & construction of conforming exit stairs. extension of (e) dormer only for head height on north side. this remodel will not add square footage. garage approved under pa# 2011/09/23/5392.Details
entire bldg remodel of 5 unit bldg. to include 5 (n) kitchens & 5 (n) bathrooms. removal of fire escape & construction of conforming exit stairs. extension of (e) dormer only for head height on north side. this remodel will not add square footage. garage approved under pa# 2011/09/23/5392. | $500,000 |
| Jun 29, 2010 | Completed final sign-off Apr 2012 | 2695 Sacramento St | add a full kitchen to family room on exist lower level. existing stair between floors shall remain. elec & plumb will be a part of this kitchen addition. change use from (e) commercial to 2nd residential space.Details
add a full kitchen to family room on exist lower level. existing stair between floors shall remain. elec & plumb will be a part of this kitchen addition. change use from (e) commercial to 2nd residential space. | $40,000 |
| May 9, 2002 | Expired or cancelled expired Sep 2002 | 117 Ord St | repair rot on stairs, on treads & risersDetails
repair rot on stairs, on treads & risers | $1,500 |