Cornerstone Construction
Cornerstone Construction is a California sole owner based in Richmond (Contra Costa County) with contractor license #1044251 (B), first issued in 2018. CSLB status on Nov 9, 2026: Active, no violations. From Jan 1, 2025 to Nov 8, 2026, building departments recorded 3 permits under this name, 3 of them home projects (roofing, ADU). The latest permit is from Jun 26, 2026. The license lists a contractor bond and workers' compensation coverage.
3permits 2025–26
3home-project permits
8years licensed
Jun 26, 2026latest permit
Business phone (CSLB)
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License
| License # | 1044251 |
|---|---|
| Status | Active, no violations |
| Classes | B |
| Business type | sole owner |
| Issued / Expires | Sep 13, 2018 / Sep 30, 2028 |
| Contractor bond | Yes |
| Workers' comp | Yes, on file |
| Based in | Richmond, Contra Costa County |
Recent permits
| Date | Work | Area | Declared value | Status |
|---|---|---|---|---|
| Jun 26, 2026 | Roofing | 94115 · Pacific Heights / Western Addition | $9,000 | Issued |
| Jun 26, 2026 | Roofing | 94115 · Pacific Heights / Western Addition | $5,000 | Finaled |
| Feb 9, 2026 | ADU / granny flat | 94118 · Inner Richmond / Presidio Heights | $165,313 | Issued |
Street addresses of homeowners are never shown.
Work on permits
Roofing · 2 permits ADU / granny flat · 1 permit
Where they work
94115 · Pacific Heights / Western Addition · 2 permits94118 · Inner Richmond / Presidio Heights · 1 permit
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