Barry O Mahony Construction
- Based in
- San Francisco
- On San Francisco permits
- Mar 2025 to Sep 2026
- Last 24 months
- 7 permits filed
7 permits since 2000: 6 completed, 1 in progress.
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 all building permits 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.
Most recent permits
| Filed | Outcome | Address | Work described on the permit | Declared cost |
|---|---|---|---|---|
| Sep 1, 2026 | In progress issued Sep 2026 | 101 Quintara St | comply with nov#: 202544963. remove the retaining walls added without a building permit. restore the original grade per the soil report. add a new 6 ft fence with 24" high non-engineered wall at the east elevation.Details
comply with nov#: 202544963. remove the retaining walls added without a building permit. restore the original grade per the soil report. add a new 6 ft fence with 24" high non-engineered wall at the east elevation. | $20,000 |
| Apr 22, 2026 | Completed final sign-off Sep 2026 | 887 Faxon Av | partial voluntary seismic upgrades in basementof sfh partial foundation. repair/upgrades. to comply nov 202649902. legalize replacement of (e)water heater.Details
partial voluntary seismic upgrades in basementof sfh partial foundation. repair/upgrades. to comply nov 202649902. legalize replacement of (e)water heater. | $35,000 |
| Mar 4, 2026 | Completed final sign-off Aug 2026 | 887 Faxon Av | rewater proofing a window with some possible framing dryrot to be addressed also. this work is to take care of complaint #202651857. not to comply with ces #202649902Details
rewater proofing a window with some possible framing dryrot to be addressed also. this work is to take care of complaint #202651857. not to comply with ces #202649902 | $5,000 |
| Nov 3, 2025 | Completed final sign-off Nov 2025 | 2820 Van Ness Av | repair dryrot at deck at the rear of the property. less then 50 percent.Details
repair dryrot at deck at the rear of the property. less then 50 percent. | $1,000 |
| Sep 26, 2025 | Completed final sign-off May 2026 | 74 Prospect Av | revision to pa# 202508193407: at (e) second floor bedrooms, remove (e) closets and fireplace. (n) bathroom, closets, doors, fixtures, and finishes.Details
revision to pa# 202508193407: at (e) second floor bedrooms, remove (e) closets and fireplace. (n) bathroom, closets, doors, fixtures, and finishes. | $102,491 |
| Aug 19, 2025 | Completed final sign-off May 2026 | 74 Prospect Av | at existing 2nd floor bathroom, remove existing closet and enlarge existing bathroom. install new fixtures and finishes. non load bearing wall, no structural work.Details
at existing 2nd floor bathroom, remove existing closet and enlarge existing bathroom. install new fixtures and finishes. non load bearing wall, no structural work. | $29,000 |
| Mar 10, 2025 | Completed final sign-off Sep 2025 | 3575 Pierce St | expansion of ground floor garden garden unit (no street frontage) in an existing 3-story, 3 unit residence construction in 1927. new infill area to include a bedroom space, relocation of th entry, kitchen and bathroom, with a total addition of 106 sq ft on ground fl.Details
expansion of ground floor garden garden unit (no street frontage) in an existing 3-story, 3 unit residence construction in 1927. new infill area to include a bedroom space, relocation of th entry, kitchen and bathroom, with a total addition of 106 sq ft on ground fl. | $20,000 |