Wda William Duff Architects
Architecture firm · San Francisco permit activity
Architecture firm active in San Francisco construction, tracked from public building-permit filings.
#390
by NYC filing activity
among NYC architects & engineers, last 90 days
5
project records
Feb 2025 to Jun 2026
2/16
active weeks
weeks with a filing (last 16)
5 projects
Scopes, declared values and this firm's role on each one
See 5 projects involving Wda William Duff Architects
Recent projects involving this firm
Noe Valley
Convert (e) living, dining & kitchen into (n) primary suite. construct (n) kitchen & pantry in…
$266K
Presidio Heights
Remodel. replace (e) side entry door & (e) windows in kind. (n) sauna & cold plunge in…
$150K
Pacific Heights
Removal of (e) winding stair & extension of 3-flight stair from 2nd flr of the dwelling unit to…
$10K
Neighbourhood, filing date, scope and declared value are shown here. Exact addresses, full filing histories and project teams are part of the paid product.
See every project involving Wda William Duff Architects → start a 14-day trial
5 project records for Wda William Duff Architects: addresses, values, project teams
Start 14-day free trial
Middle 50% of declared values: $10K–$150K (median $40K)
Most recent filing: Noe Valley · Jun 30, 2026
2 active · 2 newly observed last 90 days
What brings you here?
One click. It shapes what we build next.
Filing activity · last 16 weeks
APR
MAY
JUN
JUL
2
active projects (last 90d)
2
newly observed (last 90d)
Jun 2026
peak month
Project mix · by use
Residential100%
Geography · by borough
Noe Valley40%
Pacific Heights40%
Presidio Heights20%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| 1 | Ftf Engineering | Engineering | 1 | |
| 1 | Siena Pacific, Inc. | General contractor | 2 | |
| 2 | Perez Construction Llc. | General contractor | 1 | |
| 3 | The Toboni Group | General contractor | 1 |
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 Wda William Duff Architects filed?▾
PermitPipeline tracks 5 San Francisco building-permit projects for Wda William Duff Architects (Feb 2025 to Jun 2026). 2 had filing activity in the last 90 days.
Does Wda William Duff Architects work on commercial or residential projects?▾
Across its tracked San Francisco filings, 0% of Wda William Duff Architects'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 Wda William Duff Architects work?▾
40% of Wda William Duff Architects's tracked San Francisco projects are in Noe Valley.
What is a typical Wda William Duff Architects project worth?▾
Across the 5 tracked projects with a declared value, Wda William Duff Architects averages $93K per project (declared value on the permit filing, not contract value).
Which firms does Wda William Duff Architects work with most often?▾
Wda William Duff Architects most frequently appears on the same San Francisco permit filings as Siena Pacific, Inc., Ftf Engineering, Perez Construction Llc.. Appearing together indicates association on shared filings, not a proven working relationship.
Is Wda William Duff Architects an architecture firm?▾
Wda William Duff Architects is listed as an architecture firm 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.
Firm directories by market