Cornerstone DBA Ag Construction
Cornerstone DBA Ag Construction is a California corporation based in San Anselmo (Marin County) with contractor license #930085 (B), first issued in 2009. CSLB status on Nov 9, 2026: Active, no violations. From Jan 1, 2025 to Nov 8, 2026, building departments recorded 5 permits under this name, 2 of them home projects (room addition, kitchen & bath). 20% of them were finaled by the city inspector. The median declared job value is $20,552. The latest permit is from Sep 28, 2026. The license lists a contractor bond and workers' compensation coverage.
Business phone (CSLB)
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License
| License # | 930085 |
|---|---|
| Status | Active, no violations |
| Classes | B |
| Business type | corporation |
| Issued / Expires | Mar 19, 2009 / Aug 31, 2027 |
| Contractor bond | Yes |
| Workers' comp | Yes, on file |
| Based in | San Anselmo, Marin County |
Recent permits
| Date | Work | Area | Declared value | Status |
|---|---|---|---|---|
| Sep 28, 2026 | Other permits | 94110 · Mission / Bernal Heights | $10,000 | Issued |
| May 11, 2026 | HVAC, plumbing & electrical | 94127 · West of Twin Peaks | $110,000 | Issued |
| Oct 13, 2025 | Other permits | 94960 · San Anselmo | $5,000 | Issued |
| Jul 21, 2025 | Room addition | 94116 · Sunset/Parkside / West of Twin Peaks | $25,000 | Finaled |
| Jun 2, 2025 | Kitchen & bath remodel | 94131 · Noe Valley / Glen Park | $20,552 | Issued |
Street addresses of homeowners are never shown.
Work on permits
Where they work
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