Salas O'brien
Engineering firm · San Francisco permit activity
Engineering firm active in San Francisco construction, tracked from public building-permit filings.
#783
by NYC filing activity
among NYC architects & engineers, last 90 days
3
project records
Jul 2025 to May 2026
1/16
active weeks
weeks with a filing (last 16)
3 projects
Scopes, declared values and this firm's role on each one
See 3 projects involving Salas O'brien
Recent projects involving this firm
Outer Mission
Remove & install 4,000 gallon above ground storage tank. connect (e) underground double wall…
$200K
Marina
Revision tpo pa #202310047992. locally thicken existing grade beam on 2 different walls
$6K
Hayes Valley
Demo existing duplex sewage injector pumps and replace w/new. provide & install self contained…
$10K
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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3 project records for Salas O'brien: addresses, values, project teams
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Most recent filing: Outer Mission · May 19, 2026
1 active · 1 newly observed last 90 days
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Filing activity · last 16 weeks
APR
MAY
JUN
JUL
1
active projects (last 90d)
1
newly observed (last 90d)
May 2026
peak month
Project mix · by use
Residential100%
Geography · by borough
Hayes Valley34%
Marina33%
Outer Mission33%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| 1 | Stantec Architecture Inc. | Architecture | 1 | |
| 1 | Jv Services | 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 Salas O'brien filed?▾
PermitPipeline tracks 3 San Francisco building-permit projects for Salas O'brien (Jul 2025 to May 2026). 1 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?▾
33% of Salas O'brien's tracked San Francisco projects are in Hayes Valley.
What is a typical Salas O'brien project worth?▾
Across the 3 tracked projects with a declared value, Salas O'brien averages $72K per project (declared value on the permit filing, not contract value).
Which firms does Salas O'brien work with most often?▾
Salas O'brien most frequently appears on the same San Francisco permit filings as Stantec Architecture Inc., 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 DOB filings.
Public aggregate — full project records are part of the paid leads product. Updated daily from SF DBI filings.
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