Leff Design Build
Leff Design Build is an active, licensed contractor operating in Sebastopol, CA. Operating under a California contractor license established in 1987. They hold a B General Building Contractor license. They currently maintain an active contractor bond and workers' compensation insurance. No disciplinary actions have been recorded against this license.
License Information
- License Number
- 521133
- Status
- Active
- Classification(s)
- B: General Building Contractor
- Tenure
- Licensed since 1987 (38 years)
- Issue Date
- November 20, 1987
- Expiration Date
- November 30, 2027
- Disciplinary Record
- No Disciplinary Actions
Bond & Insurance
- Contractor Bond
- Bonded ($25000) – OHIO CASUALTY INSURANCE COMPANY (THE)
- Workers’ Compensation
- Workers' Compensation Insurance – BENCHMARK INSURANCE COMPANY
A contractor’s bond protects consumers up to the bond amount if the contractor fails to fulfill contractual obligations or violates CSLB regulations.
Workers’ compensation insurance protects homeowners from liability if a contractor’s employee is injured on the job site.
Location
- Address
- 6791 SEBASTOPOL AVE STE 140
- City
- Sebastopol, CA
- ZIP Code
- 95472
- Phone
- (707) 823-4899
About This License Type
B: General Building Contractor
Authorizes construction of structures including residential, commercial, and industrial buildings requiring at least two unrelated building trades or crafts. May take prime contracts or subcontracts for framing or carpentry. May subcontract all specialty work but must hold the appropriate C license to self-perform specialty trade work.
Not authorized: Cannot self-perform specialty trade work (electrical, plumbing, HVAC, etc.) without holding the corresponding C license. Cannot contract for C-16 Fire Protection or C-57 Well Drilling without the appropriate license or subcontractor.
Verify on Official CSLB Website
License data sourced from the California Contractors State License Board. Last data update: February 20, 2026.