PermitPipeline

Welin Builders Inc

General contractor · San Francisco permit activity
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General contractor active in San Francisco construction, tracked from public building-permit filings.

#1668
by NYC filing activity
among NYC general contractors, last 90 days
4
project records
Jan 2025 to Dec 2025
0/16
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 Welin Builders
Recent projects involving this firm
Oceanview/Merced/Ingleside
Fire damage repair, replace knob and tube wire into romex, replace existing main panel, kitchen…
Dec 2, 2025 · otc alterations permit · General contractor
$123K
Outer Mission
To cmply with nov 202536749. repair exterior facade. brick facade (1 column)(street facing)
Jun 18, 2025 · otc alterations permit · General contractor
$8K
Sunset/Parkside
1) conversion of the storage and part garage into living area 2) re-construction of stairs from…
Feb 28, 2025 · otc alterations permit · General contractor
$75K

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 Welin Builders → start a 14-day trial
Middle 50% of declared values: $20K–$123K (median $75K) Most recent filing: Oceanview/Merced/Ingleside · Dec 2, 2025 0 active · 0 newly observed last 90 days

Filing activity · last 16 weeks

APR
MAY
JUN
JUL
0
active projects (last 90d)
0
newly observed (last 90d)
—
peak month

Project mix · by use

Residential100%

Geography · by borough

Castro/Upper Market25%
Oceanview/Merced/Ingleside25%
Outer Mission25%
Sunset/Parkside25%

Frequently asked questions

How many SF projects has Welin Builders Inc filed?▾
PermitPipeline tracks 4 San Francisco building-permit projects for Welin Builders Inc (Jan 2025 to Dec 2025). 0 had filing activity in the last 90 days.
Does Welin Builders Inc work on commercial or residential projects?▾
Across its tracked San Francisco filings, 0% of Welin 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 Welin Builders Inc work?▾
25% of Welin Builders Inc's tracked San Francisco projects are in Castro/Upper Market.
What is a typical Welin Builders Inc project worth?▾
Across the 4 tracked projects with a declared value, Welin Builders Inc averages $56K per project (declared value on the permit filing, not contract value).
Is Welin Builders Inc a general contractor?▾
Welin 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 DOB filings.
Public aggregate — full project records are part of the paid leads product. Updated daily from SF DBI filings.
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