No published contact details.
Cornerstone Construction is a general contractor with 3 tracked San Francisco building-permit projects on record, with the latest filing in that record 38 days ago. Its filings (Aug 2025 to Jul 2026) are concentrated in Inner Sunset and Lone Mountain/USF, 100% residential. If you work at Cornerstone Construction, claim this page to add a description.
Filed 38 days ago
#857
by SF filing activity
among SF general contractors, 90 days to Aug 23, 2026
3
projects
from 8 filings
2/16
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
$44K Lone Mountain/USF multifamily renovation
Active 1 month ago · 2 filings · Cornerstone Construction: GC
Online electrical permit: 60 of buildings of 6 dwelling units or less. modification of an existing fire alarm system by upgrading the fire…
GC named
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$14K Pacific Heights single-family renovation
Grade CActive 2 months ago · 2 filings · Cornerstone Construction: GC
Re-roofing with torch down ref
GC named
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$30K Inner Sunset renovation
Last active Aug 2025 · Cornerstone Construction: GC
To comply with nov repairing damage framing in kitchen; remodeling space, replacing damaged walk in cooler. new indian restaurant taking…
GC named · Architect identified
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Neighborhood, filing date, scope and declared value are shown here. Exact addresses,
owner names and mailing addresses, and full filing histories are part of the paid product.
3 project records for Cornerstone Construction: addresses, values, project teams
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Declared values3 on filetoo few for a rangeLast filed38 days agoLone Mountain/USF · Jul 28, 2026Last 90 days2 active1 newly filed
Filing activity · 16 weeks to Aug 23, 2026 · peak Jun 2026
MAY
JUN
JUL
AUG
Project mix · by use
Residential100%
Geography · by neighborhood
Inner Sunset34%
Lone Mountain/USF33%
Pacific Heights33%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| 1 | Jim Lau | Architecture | 1 | |
| None on shared filings. | ||||
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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 licenseCSLB Contractor #1044251As filed on 2 permits
Repeat working relationships0 firmsFirms this one appears with on more than one project, out of 1 in total.
Permit speed—Too few filings with a recorded issue date to publish a median.
Frequently asked questions
How many SF projects does Cornerstone Construction appear on?▾
PermitPipeline tracks 3 San Francisco building-permit projects for Cornerstone Construction (Aug 2025 to Jul 2026). 2 had filing activity in the last 90 days.
Does Cornerstone Construction work on commercial or residential projects?▾
Across its tracked San Francisco filings, 0% of Cornerstone 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 Cornerstone Construction work?▾
34% of Cornerstone Construction's tracked San Francisco projects are in Inner Sunset.
Which firms appear most often on the same filings as Cornerstone Construction?▾
Cornerstone Construction most frequently appears on the same San Francisco permit filings as Jim Lau. Appearing together indicates association on shared filings, not a proven working relationship.
Is Cornerstone Construction a general contractor?▾
Cornerstone 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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