Design One
Artesia · Los Angeles County · CA
Verified
Bestopedia verdict
California’s contractor board lists Design One with a license standing of CLEAR. A contractor bond is on file, and workers’ compensation coverage is current.
- License standing
- 25 / 25
- Clean record
- 15 / 15
- Track record
- 24.3 / 30
- License continuity
- 10 / 10
- Workers' comp
- 9 / 12
- Contractor bond
- 8 / 8
The verified record
- CSLB license
- #503509 verify on CSLB ↗
- Classifications
- B, C-45
- Years licensed
- 39.5 years since 12/31/1986
- Contractor bond
- $25,000 Western Surety Company
- Workers’ comp
- Current
- Business type
- Sole Owner
- Qualifying principal
- Yun William Chung
- Address of record
- 17615 Pioneer Blvd, Artesia, CA 90701
Frequently Asked Questions
Is Design One a licensed General Contractor contractor in California?
Yes. Design One holds California CSLB contractor license #503509 with a B (General Building) classification. Current CSLB status: CLEAR (as of July 2026).
What work is Design One licensed to perform?
Design One is licensed for B (General Building), plus additional classifications: C-45.
Is Design One bonded?
Yes. Design One carries contractor's bond #66864531 for $25,000 through Western Surety Company.
Does Design One carry workers' compensation insurance?
CSLB records list the workers' compensation status for Design One as Exempt.
How long has Design One held its contractor license?
Design One has held California contractor license #503509 since 12/31/1986, approximately 40 years (as of July 2026).
Where is Design One located?
Design One is based in Artesia, Los Angeles County, CA 90701.