Cornerstome Construction
General contractor · San Francisco permit activity
General contractor active in San Francisco construction, tracked from public building-permit filings.
#1145
by NYC filing activity
among NYC general contractors, last 90 days
3
project records
Apr 2025 to Jul 2026
2/16
active weeks
weeks with a filing (last 16)
3 projects
Scopes, declared values and this firm's role on each one
See 3 projects involving Cornerstome Construction
Recent projects involving this firm
Lone Mountain/USF
Unit 1: remove drywall from ceiling, insulate joist bays with rocwool, reinstall drywall.…
$10K
Nob Hill
Remove bathtub and add laundry in its place. no layout changes. dryer will be ventless
$10K
Marina
Unit# 2 & 4: interior renovations, remodel of existing kitchen and bathroom both units like for…
$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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3 project records for Cornerstome Construction: addresses, values, project teams
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Most recent filing: Lone Mountain/USF · Jul 2, 2026
1 active · 1 newly observed last 90 days
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Filing activity · last 16 weeks
APR
MAY
JUN
JUL
1
active projects (last 90d)
1
newly observed (last 90d)
Jun 2026
peak month
Project mix · by use
Residential100%
Geography · by borough
Lone Mountain/USF34%
Marina33%
Nob Hill33%
Frequently asked questions
How many SF projects has Cornerstome Construction filed?▾
PermitPipeline tracks 3 San Francisco building-permit projects for Cornerstome Construction (Apr 2025 to Jul 2026). 1 had filing activity in the last 90 days.
Does Cornerstome Construction work on commercial or residential projects?▾
Across its tracked San Francisco filings, 0% of Cornerstome 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 Cornerstome Construction work?▾
33% of Cornerstome Construction's tracked San Francisco projects are in Lone Mountain/USF.
What is a typical Cornerstome Construction project worth?▾
Across the 3 tracked projects with a declared value, Cornerstome Construction averages $73K per project (declared value on the permit filing, not contract value).
Is Cornerstome Construction a general contractor?▾
Cornerstome 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 DOB filings.
Public aggregate — full project records are part of the paid leads product. Updated daily from SF DBI filings.
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