Duffy Construction Llc
General contractor · San Francisco permit activity
General contractor active in San Francisco construction, tracked from public building-permit filings.
#392
by NYC filing activity
among NYC general contractors, last 90 days
4
project records
Nov 2025 to Jul 2026
3/16
active weeks
weeks with a filing (last 16)
4 projects
Scopes, declared values and this firm's role on each one
See 4 projects involving Duffy Construction
Recent projects involving this firm
Haight Ashbury
Remodel 2 bathrooms in kind and remodel kitchen in kind. no change to floor layout. no change…
$100K
Outer Richmond
Remodel in kind (e) bathroom. no change to floor layout. no change to wall layout. no…
$70K
Seacliff
Remodel 2 bathrooms replace in kind remodel kitchen replace in kind repair sheetrock in kind 2…
$200K
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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4 project records for Duffy Construction: addresses, values, project teams
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Middle 50% of declared values: $100K–$200K (median $100K)
Most recent filing: Haight Ashbury · Jul 28, 2026
3 active · 3 newly observed last 90 days
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Filing activity · last 16 weeks
APR
MAY
JUN
JUL
3
active projects (last 90d)
3
newly observed (last 90d)
Jul 2026
peak month
Project mix · by use
Residential100%
Geography · by borough
Haight Ashbury50%
Outer Richmond25%
Seacliff25%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| 1 | Design Consultants Group, Inc | Architecture | 1 | |
| None on shared filings. | ||||
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 Duffy Construction Llc filed?▾
PermitPipeline tracks 4 San Francisco building-permit projects for Duffy Construction Llc (Nov 2025 to Jul 2026). 3 had filing activity in the last 90 days.
Does Duffy Construction Llc work on commercial or residential projects?▾
Across its tracked San Francisco filings, 0% of Duffy Construction Llc'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 Duffy Construction Llc work?▾
50% of Duffy Construction Llc's tracked San Francisco projects are in Haight Ashbury.
What is a typical Duffy Construction Llc project worth?▾
Across the 5 tracked projects with a declared value, Duffy Construction Llc averages $94K per project (declared value on the permit filing, not contract value).
Which firms does Duffy Construction Llc work with most often?▾
Duffy Construction Llc most frequently appears on the same San Francisco permit filings as Design Consultants Group, Inc. Appearing together indicates association on shared filings, not a proven working relationship.
Is Duffy Construction Llc a general contractor?▾
Duffy Construction Llc 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 DOB filings.
Public aggregate — full project records are part of the paid leads product. Updated daily from SF DBI filings.
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