Public CSLB records

Bay Cities Development, A General Engineering Contractor in South San Francisco, CA

License #638618·Sole Owner·South San Francisco, San Mateo County
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Summary

Bay Cities Development operating as a sole owner holds California contractor license #638618, which is currently expired (lapsed Jul 31, 2026) and not valid to contract until it is renewed. First issued in 1992, the license has been on the CSLB roster for 34 years. It carries 7 CSLB classifications: A General Engineering Contractor, B General Building Contractor, C-10 Electrical Contractor, C-13 Fencing Contractor, C-35 Lathing and Plastering Contractor, C-36 Plumbing Contractor, and C-39 Roofing Contractor. Records show an active surety bond on file with Merchants Bonding Company (mutual) and a previously-filed workers' compensation policy with State Compensation Insurance Fund that is no longer active. The business is based in South San Francisco, in San Mateo County, California.

Business Information
Address
28 Del Paso Dr
South San Francisco, CA 94080
License Details & Classifications
Financial & Insurance Coverage
Contractor Bond
Surety
Merchants Bonding Company (mutual)
Bond Number
101524435
Effective
Jun 20, 2025
Status
Active
Workers' Compensation
Coverage
Workers' Compensation Insurance
Carrier
State Compensation Insurance Fund
Policy Number
9161833
Effective
Jun 29, 2020
Expires
Jun 29, 2026
Alert

This contractor has a compliance issue in its public CSLB record:

  • License expired
  • No active workers' comp on file
License StatusInactive / Expired
Contractor BondOn file
Workers' CompensationInactive

An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this

Frequently asked questions
Is Bay Cities Development licensed in California?

Bay Cities Development previously held California Contractors State License Board license number 638618, but the license expired on July 31, 2026 and is not currently valid. It was first issued on February 27, 1992.

What does Bay Cities Development specialize in?

Bay Cities Development is licensed for 7 CSLB classifications: A General Engineering Contractor, B General Building Contractor, C-10 Electrical Contractor, C-13 Fencing Contractor, C-35 Lathing and Plastering Contractor, C-36 Plumbing Contractor, and C-39 Roofing Contractor.

Where is Bay Cities Development headquartered?

Bay Cities Development is headquartered at 28 Del Paso Dr, South San Francisco, CA 94080, in San Mateo County, California.

Does Bay Cities Development have an active surety bond on file with CSLB?

Yes. Bay Cities Development has an active California contractor surety bond filed with Merchants Bonding Company (mutual).

Does Bay Cities Development carry workers' compensation coverage?

Bay Cities Development has a previously-filed workers' compensation policy with State Compensation Insurance Fund that is no longer active.

How do I verify Bay Cities Development's contractor license?

You can verify Bay Cities Development's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=638618.

Activity Timeline
  1. License issuedFeb 27, 1992
  2. WC coverage startsJun 29, 2020
  3. Bond activeJun 20, 2025
  4. WC expiredJun 29, 2026
  5. License expiredJul 31, 2026
Other contractors in San Mateo County
California lien & payment resources

Working a California job with Bay Cities Development, or chasing an unpaid invoice? These free tools track your mechanics lien deadlines and rights under California Civil Code §§8200–8848.

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