Public CSLB records

MARK LANSDOWN CONSTRUCTION

License #621009·Sole Owner·SIERRA MADRE, Los Angeles County
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Summary

MARK LANSDOWN CONSTRUCTION operating as a sole owner is licensed in California under CSLB number 621009. The license was first issued in 1991, putting the business at 35 years on the active CSLB roster. It carries a single CSLB classification: B — General Building Contractor. Records show an active surety bond on file with AMERICAN CONTRACTORS INDEMNITY COMPANY and an exempt workers' compensation status (no employees on payroll). The business is based in SIERRA MADRE, in Los Angeles County, California.

Business Information
Address
249 RAMONA
SIERRA MADRE, CA 91024
License Details & Classifications
License Number
621009
Issued
May 29, 1991
Status
CLEAR
Expires
Mar 31, 2028
Entity
Sole Owner
Financial & Insurance Coverage
Contractor Bond
Surety
AMERICAN CONTRACTORS INDEMNITY COMPANY
Bond Number
101038448
Effective
Feb 20, 2026
Status
Active
Workers' Compensation
Coverage
Exempt
Carrier
Policy Number
Effective
Feb 18, 2026
Expires
License StatusActive
Contractor BondOn file
Workers' CompensationActive
Activity Timeline
  1. License issuedMay 29, 1991
  2. WC coverage startsFeb 18, 2026
  3. Bond activeFeb 20, 2026
  4. License expiresMar 31, 2028