O'sullivan & Son Construction Inc
- Based in
- San Ramon
- On San Francisco permits
- Feb 2013 to Sep 2026
- Last 24 months
- 8 permits filed
26 permits since 2000: 20 completed, 5 in progress, 1 expired or cancelled.
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
4 stairs permits: 1 completed, 3 in progress. Typically 18 days from filing to permit and 223 days from permit to final inspection.
| Filed | Outcome | Address | Work described on the permit | Declared cost |
|---|---|---|---|---|
| Sep 16, 2026 | In progress issued Oct 2026 | 3633 Webster St | revision to 202604109240. existing rear deck to receive new waterproofing and wood decking. new 42" fire wall at property line edge of (e) deck. new 42" glass guardrail rear yard edge of (e) deck. revision to guardrail and handrail at lowest flight at stair 009. no plumbing.Details
revision to 202604109240. existing rear deck to receive new waterproofing and wood decking. new 42" fire wall at property line edge of (e) deck. new 42" glass guardrail rear yard edge of (e) deck. revision to guardrail and handrail at lowest flight at stair 009. no plumbing. | |
| Jun 18, 2026 | In progress issued Jul 2026 | 3633 Webster St | revision to pa# 202604109240: includes updates to windows at rear adn northern elevations, bathroom, water closets, stair guardrail, mechanical room location, rate wall adjustments, structural adjustments, condenser located on roof.Details
revision to pa# 202604109240: includes updates to windows at rear adn northern elevations, bathroom, water closets, stair guardrail, mechanical room location, rate wall adjustments, structural adjustments, condenser located on roof. | |
| Apr 10, 2026 | In progress issued Apr 2026 | 3633 Webster St | 1st fl - int'r remodel w/stair. (n) windows in (n) openings; 2nd fl - interior remodel w/stair (n) windows in (e) openings. note 1st/2nd fl kitchen and baths under pa 202512222385. 3rd fl - remodel to kitchen & (e) 2 bathrooms; no work to front facade. all windows at rear facade to be replacedDetails
1st fl - int'r remodel w/stair. (n) windows in (n) openings; 2nd fl - interior remodel w/stair (n) windows in (e) openings. note 1st/2nd fl kitchen and baths under pa 202512222385. 3rd fl - remodel to kitchen & (e) 2 bathrooms; no work to front facade. all windows at rear facade to be replaced | $195,000 |
| Dec 2, 2024 | Completed final sign-off Jul 2025 | 2580 Clay St | rev 202409251547 to include demo of (e) rear deck and construction of (n) deck. replace windows within the same opening facing the side and rear. (n) opening for fire rated door between garage and interior stairway.Details
rev 202409251547 to include demo of (e) rear deck and construction of (n) deck. replace windows within the same opening facing the side and rear. (n) opening for fire rated door between garage and interior stairway. | $25,000 |