2366 43rd Ave, San Francisco, CA 94116
Fog Horn Builders Inc is a general contractor with 3 tracked San Francisco building-permit projects on record, with the latest filing in that record 42 days ago. Its filings (May 2025 to Jul 2026) are concentrated in Sunset/Parkside and Inner Sunset, 100% residential. If you work at Fog Horn Builders Inc, claim this page to add a description.
Filed 42 days ago
#1,356
by SF filing activity
among SF general contractors, 90 days to Aug 23, 2026
3
projects
from 10 filings
5/16
active weeks
weeks with a filing (16 weeks to Aug 23, 2026)
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Permit-backed projects · PermitPipeline’s independent record
Inner Sunset single-family renovation
Grade BActive 1 month ago · 2 filings · Fog Horn Builders: GC
200 amp service upgrade. complete house rewire
GC named · Engineer identified · 3 specialty contractors identified
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$299K Sunset/Parkside single-family renovation
Active 7 months ago · Fog Horn Builders: GC
Add 2nd fl deck & stair to grade. remove (e) stair & infill corner of bldg on both floors. at 1st floor relocate bathroom & add powder…
GC named · Engineer identified
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$65K Sunset/Parkside single-family renovation
Last active May 2025 · Fog Horn Builders: GC
Wiring to new walls in the bedroom. new bathroom with steam shower
GC named · Architect identified · Engineer identified · 2 specialty contractors identified
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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 Fog Horn Builders Inc: addresses, values, project teams
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Declared values3 on filetoo few for a rangeLast filed42 days agoInner Sunset · Aug 6, 2026Last 90 days1 active0 newly filed
Filing activity · 16 weeks to Aug 23, 2026 · peak Jul 2026
MAY
JUN
JUL
AUG
Project mix · by use
Residential100%
Geography · by neighborhood
Sunset/Parkside67%
Inner Sunset33%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| 1 | William Harrison Consult Eng | Engineering | 2 | |
| 2 | Cassandra Mettling Davis | Architecture | 1 | |
| 3 | Tim O'sullivan Structural Eng | Engineering | 1 | |
| 1 | West Coast Electric, Inc | Electrical contractor | 2 | |
| 2 | O'donovan Plumbing Inc. | Plumbing contractor | 2 | |
| 3 | Hegarty Plumbing | Plumbing 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 #749698As filed on 1 permit
Repeat working relationships3 firmsFirms this one appears with on more than one project, out of 6 in total.
Permit speed—Too few filings with a recorded issue date to publish a median.
Frequently asked questions
How many SF projects does Fog Horn Builders Inc appear on?▾
PermitPipeline tracks 3 San Francisco building-permit projects for Fog Horn Builders Inc (May 2025 to Jul 2026). 1 had filing activity in the last 90 days.
Does Fog Horn Builders Inc work on commercial or residential projects?▾
Across its tracked San Francisco filings, 0% of Fog Horn Builders Inc'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 Fog Horn Builders Inc work?▾
67% of Fog Horn Builders Inc's tracked San Francisco projects are in Sunset/Parkside.
Which firms appear most often on the same filings as Fog Horn Builders Inc?▾
Fog Horn Builders Inc most frequently appears on the same San Francisco permit filings as William Harrison Consult Eng, West Coast Electric, Inc, O'donovan Plumbing Inc.. Appearing together indicates association on shared filings, not a proven working relationship.
Is Fog Horn Builders Inc a general contractor?▾
Fog Horn Builders Inc 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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