B T S Design and Construction Inc

Report card

• Licence activeCSLB #1064583, class B. Issued 23 Mar 2020, expires 30 Jun 2027.
• Licensed 7 yrsSince 23 Mar 2020.
• Bonded$25,000 with Merchants Bonding Company (Mutual), since 9 Sep 2026. California requires the same $25,000 bond of every contractor.
• Works aloneExempt from workers' comp: certifies no employees, so nobody else may work on your job.
• Clean CSLB recordNo citations, complaints or legal actions disclosed.CSLB record
• On the BBB, not accreditedIts BBB rating, complaints and reviews are on its Better Business Bureau profile.BBB profile Complaints Reviews
• 11 building permits since 2020Pulled under this licence (City of Los Angeles, LADBS), most recently 13 Apr 2023.

Checked against the Contractors State License Board (CSLB) register on 4 Nov 2026.

About B T S Design and Construction Inc

People on the licence

Sung Woon Yun (qualifier), Don Dongseok Hwang (CEO and president)

Recent permits

Building permits pulled under license #1064583, from City of Los Angeles, LADBS open data, which names contractors up to 30 Oct 2026. Locations are shown to ZIP code only.

• 13 Apr 2023 · Bldg-Alter/Repair · ZIP 900174 windows change-out (same size & type) for residential buildings. Du
• 17 Mar 2023 · Bldg-Alter/Repair · ZIP 91343eplan: TENANT IMPROVEMENT FOR AN EXISTING MASSAGE PARLOR WHERE ANY PER
• 14 Mar 2023 · Bldg-Alter/Repair · ZIP 902475 Window change-out (same size & type) for residential buildings.
• 17 Feb 2023 · Bldg-Addition · ZIP 90247ePlan New bedroom addition, new kitchen millwork and fixtures, new ba
• 18 Aug 2022 · Bldg-Alter/Repair · ZIP 90057SUPPLEMENTAL TO PERMIT 18016-10000-27207. CHANGE OF EOR & CHANGE OF DE

Why it ranks #6257 of 9,857 general contractors in Los Angeles

Score 44.9 / 100. Claiming this listing or using Theo never changes it. How we rank