119 Germania St, San Francisco, CA
Duane Ernst Construction is a general contractor with 3 tracked San Francisco building-permit projects on record, with the latest filing in that record 212 days ago. Its filings (Jun 2025 to Feb 2026) are concentrated in Haight Ashbury and Hayes Valley, 100% residential. If you work at Duane Ernst Construction, claim this page to add a description.
Filed 212 days ago
#2,123
by SF filing activity
among SF general contractors, 90 days to Aug 23, 2026
3
projects
from 8 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
$22K Haight Ashbury multifamily renovation
Active 6 months ago · Duane Ernst Construction: GC
Bathroom remodel same footprint. new toilet, shower fixtures, vanity, sink faucet in all existing locations. new exhaust fam, sconce…
GC named
View project details →
$20K Hayes Valley multifamily renovation
Active 10 months ago · Duane Ernst Construction: GC
Work category: 1p; remove existing 40 gallon tank gas water heater. install new tankless, gas line, flue
GC named · 2 specialty contractors identified
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1 more
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3 project records for Duane Ernst Construction: addresses, values, project teams
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Declared values3 on filetoo few for a rangeLast filed212 days agoHaight Ashbury · Feb 17, 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
Haight Ashbury67%
Hayes Valley33%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| None on shared filings. | ||||
| 1 | FDL Plumbing Inc | Plumbing contractor | 1 | |
| 2 | Torres 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 licenseNot connectedContractor registration is held by BPELSG. That register is not part of the San Francisco permit record, and we do not yet read it.
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 Duane Ernst Construction appear on?▾
PermitPipeline tracks 3 San Francisco building-permit projects for Duane Ernst Construction (Jun 2025 to Feb 2026). 0 had filing activity in the last 90 days.
Does Duane Ernst Construction work on commercial or residential projects?▾
Across its tracked San Francisco filings, 0% of Duane Ernst 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 Duane Ernst Construction work?▾
67% of Duane Ernst Construction's tracked San Francisco projects are in Haight Ashbury.
Which firms appear most often on the same filings as Duane Ernst Construction?▾
Duane Ernst Construction most frequently appears on the same San Francisco permit filings as FDL Plumbing Inc, Torres Electric. Appearing together indicates association on shared filings, not a proven working relationship.
Is Duane Ernst Construction a general contractor?▾
Duane Ernst 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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