1302 Haight St, San Francisco, CA 94117
Barry O Mahony Construction is a general contractor with 5 tracked San Francisco building-permit projects on record, with the latest filing in that record 150 days ago. Its filings (Mar 2025 to Apr 2026) are concentrated in West of Twin Peaks and Bernal Heights, 100% residential. A typical project in the record declares $5K–$35K. If you work at Barry O Mahony Construction, claim this page to add a description.
Filed 150 days ago
#1,758
by SF filing activity
among SF general contractors, 90 days to Aug 23, 2026
5
projects
from 12 filings
0/16
active weeks
weeks with a filing (16 weeks to Aug 23, 2026)
Portfolio · $399/yearFree during launch
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Permit-backed projects · PermitPipeline’s independent record
$35K West of Twin Peaks single-family renovation
Grade DActive 4 months ago · Barry O Mahony Construction: GC
Partial voluntary seismic upgrades in basementof sfh partial foundation. repair/upgrades. to comply nov. legalize replacement of (e)water…
GC named · Architect identified · Engineer identified
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$131K Bernal Heights single-family renovation
Active 11 months ago · 2 filings · Barry O Mahony Construction: GC
Wire 11 regular outlets and 4 gfi outlets. add 4 ceiling can lights
GC named · Architect identified · Engineer identified
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$5K West of Twin Peaks single-family renovation
Active 6 months ago · Barry O Mahony Construction: GC
Rewater proofing a window with some possible framing dryrot to be addressed also. this work is to take care of complaint #. not to comply…
GC named
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5 project records for Barry O Mahony Construction: addresses, values, project teams
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Typical project$5K–$35K$20K typical1.2× the SF median ($17K)Last filed150 days agoWest of Twin Peaks · Apr 22, 2026Last 90 days0 active0 newly filed
Filing activity · 16 weeks to Aug 23, 2026
MAY
JUN
JUL
AUG
Project mix · by use
Residential100%
Geography · by neighborhood
West of Twin Peaks40%
Bernal Heights20%
Marina20%
Russian Hill20%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| 1 | Ashley & Vance Engineering | Architecture | 1 | |
| 2 | Benchmark Engineering | Architecture | 1 | |
| 1 | Sharks Plumbing Inc | Plumbing contractor | 1 | |
| 2 | Eleney Electric | Electrical 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 licenseCSLB Contractor #1134805As filed on 2 permits
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 Barry O Mahony Construction appear on?▾
PermitPipeline tracks 5 San Francisco building-permit projects for Barry O Mahony Construction (Mar 2025 to Apr 2026). 0 had filing activity in the last 90 days.
Does Barry O Mahony Construction work on commercial or residential projects?▾
Across its tracked San Francisco filings, 0% of Barry O Mahony Construction'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 Barry O Mahony Construction work?▾
40% of Barry O Mahony Construction's tracked San Francisco projects are in West of Twin Peaks.
What is a typical Barry O Mahony Construction project worth?▾
The median declared value across the 5 San Francisco projects Barry O Mahony Construction has on record that state one is $20K (declared value on the permit filing, not contract value).
Which firms appear most often on the same filings as Barry O Mahony Construction?▾
Barry O Mahony Construction most frequently appears on the same San Francisco permit filings as Ashley & Vance Engineering, Benchmark Engineering, Sharks Plumbing Inc. Appearing together indicates association on shared filings, not a proven working relationship.
Is Barry O Mahony Construction a general contractor?▾
Barry O Mahony Construction is listed as a general contractor 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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