salasobrien.com180 Grand Ave, Oakland, CA
Salas O'brien is an engineering firm with 3 tracked San Francisco building-permit projects on record, with the latest filing in that record 121 days ago. Its filings (Jul 2025 to May 2026) are concentrated in Hayes Valley and Marina, 100% residential. If you work at Salas O'brien, claim this page to add a description.
Filed 121 days ago
#1,003
by SF filing activity
among SF architects & engineers, 90 days to Aug 23, 2026
3
projects
from 3 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
$200K Outer Mission renovation
Grade AActive 3 months ago · Salas O'brien: engineer
Remove & install 4,000 gallon above ground storage tank. connect (e) underground double wall piping to new ast. upgrade tank monitoring…
No GC named · Architect identified · 2 anticipated categories not yet filed
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$6K Marina renovation
Grade DActive 4 months ago · Salas O'brien: engineer
Revision tpo. locally thicken existing grade beam on 2 different walls
GC named · Specialty contractor identified
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$10K Hayes Valley multifamily renovation
Last active Jul 2025 · Salas O'brien: engineer
Demolition existing duplex sewage injector pumps and replace w/new. provide & install self contained duplex alternating ejector pumps in…
No GC named
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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.
3 project records for Salas O'brien: addresses, values, project teams
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Declared values3 on filetoo few for a rangeLast filed121 days agoOuter Mission · May 19, 2026Last 90 days0 active0 newly filed
Filing activity · 16 weeks to Aug 23, 2026 · peak May 2026
MAY
JUN
JUL
AUG
Project mix · by use
Residential100%
Geography · by neighborhood
Hayes Valley34%
Marina33%
Outer Mission33%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| 1 | Stantec | Architecture | 1 | |
| 1 | JV Services | 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 #S5988On 1 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 2 in total.
Permit speed—Too few filings with a recorded issue date to publish a median.
Frequently asked questions
How many SF projects does Salas O'brien appear on?▾
PermitPipeline tracks 3 San Francisco building-permit projects for Salas O'brien (Jul 2025 to May 2026). 0 had filing activity in the last 90 days.
Does Salas O'brien work on commercial or residential projects?▾
Across its tracked San Francisco filings, 0% of Salas O'brien'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 Salas O'brien work?▾
34% of Salas O'brien's tracked San Francisco projects are in Hayes Valley.
Which firms appear most often on the same filings as Salas O'brien?▾
Salas O'brien most frequently appears on the same San Francisco permit filings as Stantec, JV Services. Appearing together indicates association on shared filings, not a proven working relationship.
Is Salas O'brien an engineering firm?▾
Salas O'brien 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 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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