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Tim O'sullivan Structural is an architecture firm with 4 tracked San Francisco building-permit projects on record, with the latest filing in that record 99 days ago. Its filings (Jan 2025 to Jun 2026) are concentrated in Inner Sunset and Noe Valley, 100% residential. A typical project in the record declares $20K–$50K. If you work at Tim O'sullivan Structural, claim this page to add a description.
Filed 99 days ago
#688
by SF filing activity
among SF architects & engineers, 90 days to Aug 23, 2026
4
projects
from 4 filings
1/16
active week
weeks with a filing (16 weeks to Aug 23, 2026)
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Permit-backed projects · PermitPipeline’s independent record
$50K West of Twin Peaks single-family renovation
Grade BActive 2 months ago · Tim O'sullivan Structural: architect
Partial rear of building foundation replace, girder upgrade at basement, partial excavation at basment (storage) less than 50 cy
GC named · Specialty contractor identified · 1 anticipated category not yet filed
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$40K Inner Sunset single-family renovation
Grade DActive 5 months ago · Tim O'sullivan Structural: architect
Voluntary strengthening at upper and lower partial plans, replace dining room window not visiable from street. upgrade partial foundation
GC named · Specialty contractor identified
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$8K Russian Hill multifamily renovation
Last active Jan 2025 · Tim O'sullivan Structural: architect
Voluntary bolting of wood sill plate (about 150 lineal feet) and posts (about 10) to foundation, no plywood sheathing
GC named · 1 other firm identified
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4 project records for Tim O'sullivan Structural: addresses, values, project teams
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Typical project$20K–$50K$35K typical2.1× the SF median ($17K)Last filed99 days agoWest of Twin Peaks · Jun 10, 2026Last 90 days1 active1 newly filed
Filing activity · 16 weeks to Aug 23, 2026 · peak Jun 2026
MAY
JUN
JUL
AUG
Project mix · by use
Residential100%
Geography · by neighborhood
Inner Sunset25%
Noe Valley25%
Russian Hill25%
West of Twin Peaks25%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| None on shared filings. | ||||
| 1 | Doyle Developments | General contractor | 1 | |
| 2 | F J Sandoval Co | General contractor | 1 | |
| 3 | West Beam Construction LLC | General contractor | 1 | |
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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.
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State licenseCalifornia architect #C-35235On 2 of this firm's filings. Architect licenses are held by individuals, not by firms.
Repeat working relationships0 firmsFirms this one appears with on more than one project, out of 3 in total.
Permit speed—Too few filings with a recorded issue date to publish a median.
Frequently asked questions
How many SF projects does Tim O'sullivan Structural appear on?▾
PermitPipeline tracks 4 San Francisco building-permit projects for Tim O'sullivan Structural (Jan 2025 to Jun 2026). 1 had filing activity in the last 90 days.
Does Tim O'sullivan Structural work on commercial or residential projects?▾
Across its tracked San Francisco filings, 0% of Tim O'sullivan Structural'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 work?▾
25% of Tim O'sullivan Structural's tracked San Francisco projects are in Inner Sunset.
What is a typical Tim O'sullivan Structural project worth?▾
The median declared value across the 4 San Francisco projects Tim O'sullivan Structural has on record that state one is $35K (declared value on the permit filing, not contract value).
Which firms appear most often on the same filings as Tim O'sullivan Structural?▾
Tim O'sullivan Structural most frequently appears on the same San Francisco permit filings as Doyle Developments, F J Sandoval Co, West Beam Construction LLC. Appearing together indicates association on shared filings, not a proven working relationship.
Is Tim O'sullivan Structural an architecture firm?▾
Tim O'sullivan Structural is listed as an architecture 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 Aug 23, 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.
Sources
San Francisco Department of Building Inspection permit filings.
Record source
Read directly from SF DBI filings.
Photography
None are shown until the firm supplies them.
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