Plonowski Architects + Builders
Verified against CSLB on · View on CSLB
License details
- License number
- 649916
- Status
- Active
- Classifications
- B · General Building
- Contractor bond
- $25,000
- Workers' comp
- Covered
- License term on file
- July 14, 1992 – July 31, 2026
Business
- (415) 389 8047 (CSLB public record)
- 23 DORSET LANE, Mill Valley, CA 94941Marin County
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Frequently asked questions
Is Plonowski Architects + Builders licensed in California?
Yes. Plonowski Architects + Builders holds an active California state contractor license (CSLB #649916), verified against the CSLB public record on June 17, 2026.
What is Plonowski Architects + Builders's CSLB license number?
Plonowski Architects + Builders's California contractor license number is 649916. You can verify it directly on the CSLB website: https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=649916
What kind of work is Plonowski Architects + Builders licensed for?
Plonowski Architects + Builders is classified under General Building (B) by the CSLB.
How do I verify Plonowski Architects + Builders's license myself?
Look up license #649916 with the CSLB "Check a License" tool at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=649916. 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.