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Tim O'sullivan Structural Eng

Engineering firm · San Francisco
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Tim O'sullivan Structural Eng is an engineering firm with 51 tracked San Francisco building-permit projects on record, with the latest filing in that record 39 days ago. Its filings (Jan 2025 to Sep 2026) are concentrated in Sunset/Parkside and Castro/Upper Market, 100% residential. A typical project in the record declares $15K–$45K. If you work at Tim O'sullivan Structural Eng, claim this page to add a description.

Filed 39 days ago
#40
by SF filing activity
among SF architects & engineers, 90 days to Nov 1, 2026
51
projects
from 101 filings
9/16
active weeks
weeks with a filing (16 weeks to Nov 1, 2026)
Portfolio · $399/yearFree during launch
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Permit-backed projects · PermitPipeline’s independent record
Neighborhood, filing date, scope and declared value are shown here. Exact addresses, owner names and mailing addresses, and full filing histories are part of the paid product.
Typical project$15K–$45K$25K typical1.4× the SF median ($17K)Last filed39 days agoInner Sunset · Sep 30, 2026Last 90 days11 active8 newly filed

Filing activity · 16 weeks to Nov 1, 2026 · peak Aug 2026

JUL
AUG
SEP
OCT

Project mix · by use

Residential100%

Geography · by neighborhood

Sunset/Parkside37%
Castro/Upper Market24%
West of Twin Peaks15%
Inner Sunset12%
Mission12%

Shared-project connections

#FirmPrimary roleSharedRelative
1E E Weiss ArchitectArchitecture1
2MK Engineers IncArchitecture1
3Robles & AssocciatesArchitecture1
1Ac And CompanyGeneral contractor4
2A Tamam Construction IncGeneral contractor2
3Christopher Wells Construction Inc.General contractor2
4Millwright ConstructionGeneral contractor2
5Northpoint BuildersGeneral contractor2

Create a free account to see every firm on these projects and how many projects each one shares.

Owner and developer names, and the projects behind each connection, are part of the Leads product.

Firms that appear on the same San Francisco permit filings. Association on shared filings, not a proven working relationship.
State licenseCalifornia architect #C35235On 16 of this firm's filings. Architect licenses are held by individuals, not by firms.
Repeat working relationships7 firmsFirms this one appears with on more than one project, out of 46 in total.
Permit speed37 days
This firm37d
SF median29d
8 days longer than the SF median
based on 10 firm filings vs 4,615 SF filings

Frequently asked questions

How many SF projects does Tim O'sullivan Structural Eng appear on?▾
PermitPipeline tracks 51 San Francisco building-permit projects for Tim O'sullivan Structural Eng (Jan 2025 to Sep 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?▾
37% 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?▾
The median declared value across the 50 San Francisco projects Tim O'sullivan Structural Eng has on record that state one is $25K (declared value on the permit filing, not contract value).
Which firms appear most often on the same filings as Tim O'sullivan Structural Eng?▾
Tim O'sullivan Structural Eng most frequently appears on the same San Francisco permit filings as Ac And Company, A Tamam Construction Inc, Christopher Wells Construction Inc.. 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 SF DBI filings.
Public aggregate — full project records are part of the paid leads product. Ranking, filing activity, project mix and geography were last recomputed Nov 1, 2026. Project counts, declared values and filing dates are read live from SF DBI filings.
How far back does this record go?▾
This page covers the recent permit record, not the firm’s full history. A firm’s earliest filing here means it was already working when our record opens, not that it started then.
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Sources

San Francisco Department of Building Inspection permit filings.

Record source

Read directly from SF DBI filings.

Photography

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