Hammerhouse Construction
Hammerhouse Construction is a California corporation based in San Francisco (San Francisco County) with contractor license #804459 (B), first issued in 2002. 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, 1 of them home projects (patio cover & deck). The latest permit is from Apr 16, 2026. The license lists a contractor bond and an exemption from workers' compensation (no employees).
Business phone (CSLB)
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License
| License # | 804459 |
|---|---|
| Status | Active, no violations |
| Classes | B |
| Business type | corporation |
| Issued / Expires | Feb 21, 2002 / Jul 31, 2027 |
| Contractor bond | Yes |
| Workers' comp | Exempt (no employees) |
| Based in | San Francisco, San Francisco County |
Recent permits
| Date | Work | Area | Declared value | Status |
|---|---|---|---|---|
| Apr 16, 2026 | Other permits | 94127 · West of Twin Peaks | $7,360 | Finaled |
| Dec 23, 2025 | Other permits | 94127 · West of Twin Peaks | $8,500 | Finaled |
| Oct 24, 2025 | Other permits | 94127 · West of Twin Peaks | – | Finaled |
| Aug 22, 2025 | Patio cover & deck | 94116 · Sunset/Parkside / West of Twin Peaks | $154,000 | Issued |
Street addresses of homeowners are never shown.
Work on permits
Where they work
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