Tim O'sullivan Structural Eng
Engineering firm · San Francisco permit activity
Engineering firm active in San Francisco construction, tracked from public building-permit filings.
#30
by NYC filing activity
among NYC architects & engineers, last 90 days
43
project records
Jan 2025 to Jul 2026
8/16
active weeks
weeks with a filing (last 16)
43 projects
Scopes, declared values and this firm's role on each one
See 43 projects involving Tim O'sullivan Structural Eng
Recent projects involving this firm
Castro/Upper Market
New storage room at rear of e unit add retain wall, excavate e crawl space
$80K
Sunset/Parkside
Verify room legality
$1
Mission
Demolish of roof /shed, rebuild 5 ft fence
$500
Neighbourhood, filing date, scope and declared value are shown here. Exact addresses, full filing histories and project teams are part of the paid product.
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43 project records for Tim O'sullivan Structural Eng: addresses, values, project teams
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Middle 50% of declared values: $10K–$50K (median $25K)
Most recent filing: Castro/Upper Market · Jul 28, 2026
11 active · 9 newly observed last 90 days
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Filing activity · last 16 weeks
APR
MAY
JUN
JUL
11
active projects (last 90d)
9
newly observed (last 90d)
Jun 2026
peak month
Project mix · by use
Residential100%
Geography · by borough
Sunset/Parkside32%
Castro/Upper Market29%
Mission14%
West of Twin Peaks14%
Inner Sunset11%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| 1 | E E Weiss Architect | Architecture | 1 | |
| 2 | Mk Engineers Inc | Architecture | 1 | |
| 3 | Robles & Assocciates | Architecture | 1 | |
| 1 | Ac And Company | General contractor | 4 | |
| 2 | Christopher Wells Construction Inc. | General contractor | 2 | |
| 3 | Millwright Construction | General contractor | 2 | |
| 4 | Northpoint Builders | General contractor | 2 | |
| 5 | A Tamam Construction Inc | General contractor | 1 |
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 Tim O'sullivan Structural Eng filed?▾
PermitPipeline tracks 43 San Francisco building-permit projects for Tim O'sullivan Structural Eng (Jan 2025 to Jul 2026). 11 had filing activity in the last 90 days.
Does Tim O'sullivan Structural Eng work on commercial or residential projects?▾
Across its tracked San Francisco filings, 0% of Tim O'sullivan Structural Eng'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 Tim O'sullivan Structural Eng work?▾
21% of Tim O'sullivan Structural Eng's tracked San Francisco projects are in Sunset/Parkside.
What is a typical Tim O'sullivan Structural Eng project worth?▾
Across the 47 tracked projects with a declared value, Tim O'sullivan Structural Eng averages $40K per project (declared value on the permit filing, not contract value).
Which firms does Tim O'sullivan Structural Eng work with most often?▾
Tim O'sullivan Structural Eng most frequently appears on the same San Francisco permit filings as Ac And Company, Christopher Wells Construction Inc., Millwright Construction. Appearing together indicates association on shared filings, not a proven working relationship.
Is Tim O'sullivan Structural Eng an engineering firm?▾
Tim O'sullivan Structural Eng is listed as an engineering firm 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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