Leff Design Build, B General Building Contractor in Sebastopol, CA
Leff Design Build operating as a corporation holds an active California contractor license (CSLB #521133), valid through Nov 30, 2027. First issued in 1987, the license has been on the CSLB roster for 39 years. It carries a single CSLB classification: B — General Building Contractor. Records show an active surety bond on file with Ohio Casualty Insurance Company (the) and active workers' compensation coverage from Benchmark Insurance Company. The business is based in Sebastopol, in Sonoma County, California.
- License Number
- 521133
- Issued
- Nov 20, 1987
- Status
- CLEAR
- Expires
- Nov 30, 2027
- Entity
- Corporation
- Surety
- Ohio Casualty Insurance Company (the)
- Bond Number
- 254740C
- Effective
- Jan 1, 2023
- Status
- Active
- Coverage
- Workers' Compensation Insurance
- Carrier
- Benchmark Insurance Company
- Policy Number
- 99WC0000510000
- Effective
- Sep 18, 2025
- Expires
- Sep 18, 2026
This contractor is verified, with no adverse conditions in the current CSLB record.
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Leff Design Build licensed in California?
Yes. Leff Design Build holds California Contractors State License Board license number 521133, which is active and in good standing. The license was first issued on November 20, 1987. It is valid through November 30, 2027.
What does Leff Design Build specialize in?
Leff Design Build is licensed for one CSLB classification: B General Building Contractor.
Where is Leff Design Build headquartered?
Leff Design Build is headquartered at 6791 Sebastopol Ave, Sebastopol, CA 95472, in Sonoma County, California.
Does Leff Design Build have an active surety bond on file with CSLB?
Yes. Leff Design Build has an active California contractor surety bond filed with Ohio Casualty Insurance Company (the).
Does Leff Design Build carry workers' compensation coverage?
Yes. Leff Design Build carries active workers' compensation coverage through Benchmark Insurance Company.
How do I verify Leff Design Build's contractor license?
You can verify Leff Design Build's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=521133.
- License issuedNov 20, 1987
- Bond activeJan 1, 2023
- WC coverage startsSep 18, 2025
- WC expiresSep 18, 2026
- License expiresNov 30, 2027
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