O'sullivan & Son Construction Inc
General contractor · San Francisco permit activity
General contractor active in San Francisco construction, tracked from public building-permit filings.
#639
by SF filing activity
among SF general contractors, last 90 days
4
projects tracked
Jan 2025 to Jul 2026
2/16
active weeks
weeks with a filing (last 16)
1 of the 4 O'sullivan & Son Construction projects filed new permits in the last 30 days.
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$195K Marina renovation
Filed 1 month ago · 2 filings · O'sullivan & Son Construction: GC
Revision to: includes updates to windows at rear adn northern elevations, bathroom, water closets, stair guardrail, mechanical room…
GC named · Architect identified
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$7K Pacific Heights renovation
Filed 9 days ago · O'sullivan & Son Construction: GC
Unit 1505: demolition wall, demolition kitchen coutnertops and bathroom top. replace in-kind, new faucets in kitchen & bathroom
GC named
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Pacific Heights renovation
Filed Jan 2025 · O'sullivan & Son Construction: GC
Revision to revision to lower exterior deck foot print & deck foundation
GC named · 2 architects identified · Engineer identified
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1 more
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Scopes, values, teams and filing history for every one
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Neighborhood, filing date, scope and declared value are shown here. Exact addresses,
owner and contact details and full filing histories are part of the paid product.
4 project records for O'sullivan & Son Construction: addresses, values, project teams
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Middle 50% of declared values: $2K–$195K (median $7K)
Most recent filing: Pacific Heights · Jul 28, 2026
2 active · 1 newly observed last 90 days
Filing activity · last 16 weeks
APR
MAY
JUN
JUL
2
active projects (last 90d)
1
newly observed (last 90d)
Jul 2026
peak month
Project mix · by use
Residential100%
Geography · by neighborhood
Pacific Heights50%
Marina25%
West of Twin Peaks25%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| 1 | Aleck Wilson Architects | Architecture | 2 | |
| 2 | Zfa Structural Engineers | Architecture | 1 | |
| None on shared filings. | ||||
Firms that appear on the same San Francisco permit filings. Association on shared filings, not a proven working relationship.
Frequently asked questions
How many SF projects has O'sullivan & Son Construction Inc filed?▾
PermitPipeline tracks 4 San Francisco building-permit projects for O'sullivan & Son Construction Inc (Jan 2025 to Jul 2026). 2 had filing activity in the last 90 days.
Does O'sullivan & Son Construction Inc work on commercial or residential projects?▾
Across its tracked San Francisco filings, 0% of O'sullivan & Son Construction Inc's projects are commercial and 100% are residential (multifamily, small residential, or single-family). Based on permit records, not self-reported.
Where in San Francisco does O'sullivan & Son Construction Inc work?▾
50% of O'sullivan & Son Construction Inc's tracked San Francisco projects are in Pacific Heights.
What is a typical O'sullivan & Son Construction Inc project worth?▾
Across the 5 tracked projects with a declared value, O'sullivan & Son Construction Inc averages $41K per project (declared value on the permit filing, not contract value).
Which firms does O'sullivan & Son Construction Inc work with most often?▾
O'sullivan & Son Construction Inc most frequently appears on the same San Francisco permit filings as Aleck Wilson Architects, Zfa Structural Engineers. Appearing together indicates association on shared filings, not a proven working relationship.
Is O'sullivan & Son Construction Inc a general contractor?▾
O'sullivan & Son Construction Inc is listed as a general contractor on its San Francisco permit filings. Roles on this profile are derived from the role each firm holds on public DOB filings.
Public aggregate — full project records are part of the paid leads product. Updated daily from SF DBI filings.
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