Advanced Building Solutions
Advanced Building Solutions is a California corporation based in Petaluma (Sonoma County) with contractor license #867658 (B, C-17), first issued in 2005. CSLB status on Nov 9, 2026: Active, no violations. From Jan 1, 2025 to Nov 8, 2026, building departments recorded 4 permits under this name, 3 of them home projects (ADU, custom home, remodel & repair). The latest permit is from Jan 8, 2026. The license lists a contractor bond and workers' compensation coverage.
Business phone (CSLB)
Before you sign, confirm the license is still active on the CSLB site, get a written contract and ask for the permit number for your job.
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License
| License # | 867658 |
|---|---|
| Status | Active, no violations |
| Classes | B, C-17 |
| Business type | corporation |
| Issued / Expires | Nov 15, 2005 / Nov 30, 2027 |
| Contractor bond | Yes |
| Workers' comp | Yes, on file |
| Based in | Petaluma, Sonoma County |
Recent permits
| Date | Work | Area | Declared value | Status |
|---|---|---|---|---|
| Jan 8, 2026 | ADU / granny flat | 94904 · Kentfield | $895,000 | Issued |
| Jan 8, 2026 | Other permits | 94904 · Kentfield | $5,000 | Issued |
| Jan 8, 2026 | Remodel & repair | 94904 · Kentfield | $200,000 | Issued |
| Oct 6, 2025 | Custom new home | 94904 · Kentfield | $10,000 | Issued |
Street addresses of homeowners are never shown.
Work on permits
Where they work
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