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Salas O'brien

Engineering firm · San Francisco
salasobrien.com180 Grand Ave, Oakland, CA

Salas O'brien is an engineering firm with 6 tracked San Francisco building-permit projects on record, with the latest filing in that record 7 days ago. Its filings (Jul 2025 to Nov 2026) are concentrated in Chinatown and Financial District/South Beach, 100% residential. A typical project in the record declares $10K–$250K. If you work at Salas O'brien, claim this page to add a description.

Filed 7 days ago
#232
by SF filing activity
among SF architects & engineers, 90 days to Nov 8, 2026
6
projects
from 6 filings
3/16
active weeks
weeks with a filing (16 weeks to Nov 8, 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$10K–$250K$200K typical12× the SF median ($17K)Last filed7 days agoFinancial District/South Beach · Nov 2, 2026Last 90 days3 active3 newly filed

Filing activity · 16 weeks to Nov 8, 2026 · peak Nov 2026

JUL
AUG
SEP
OCT
NOV

Project mix · by use

Residential100%

Geography · by neighborhood

Chinatown20%
Financial District/South Beach20%
Hayes Valley20%
Marina20%
Outer Mission20%

Shared-project connections

#FirmPrimary roleSharedRelative
1StantecArchitecture1
1JV ServicesGeneral contractor1
2Plant Construction Co, LPGeneral contractor1
3Aquatek Plumbing IncGeneral contractor1

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 #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 4 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 6 San Francisco building-permit projects for Salas O'brien (Jul 2025 to Nov 2026). 3 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?▾
20% of Salas O'brien's tracked San Francisco projects are in Chinatown.
What is a typical Salas O'brien project worth?▾
The median declared value across the 6 San Francisco projects Salas O'brien has on record that state one is $200K (declared value on the permit filing, not contract value).
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, Plant Construction Co, LP. 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 Nov 8, 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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