Oldknow Construction
Verified against CSLB on · View on CSLB
License details
- License number
- 859983
- Status
- Active
- Classifications
- B · General Building
- Contractor bond
- $25,000
- Workers' comp
- Exempt
- License term on file
- June 4, 2005 – June 30, 2027
Business
- (415) 297 6150 (CSLB public record)
- PO BOX 386, Mill Valley, CA 94942Marin County
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Frequently asked questions
Is Oldknow Construction licensed in California?
Yes. Oldknow Construction holds an active California state contractor license (CSLB #859983), verified against the CSLB public record on June 17, 2026.
What is Oldknow Construction's CSLB license number?
Oldknow Construction's California contractor license number is 859983. You can verify it directly on the CSLB website: https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=859983
What kind of work is Oldknow Construction licensed for?
Oldknow Construction is classified under General Building (B) by the CSLB.
How do I verify Oldknow Construction's license myself?
Look up license #859983 with the CSLB "Check a License" tool at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=859983. This page reflects the CSLB public record as of June 17, 2026.
See an error in this record? Report incorrect information. Status reflects CSLB data as of the date shown above.