Dtheory Design Build LLC

Construction Contractor in Seattle, Washington

Licensed, bonded & insuredBond $30,000Insurance $1,000,000

Call (206) 779-7235 Send a message Map ↗

Public-record details

Address: 4726 43rd Ave S, Seattle, WA 98118
Phone: (206) 779-7235
Trade: General contractors & remodelers
L&I licence number: DTHEODB836MG
Licence type: Construction Contractor
Specialty: General
Status: Active
Business type: Limited Liability Company
UBI number: 603 523 471
Primary principal: David M Rosenfeld
Registration effective: July 10, 2017
Registration expires: July 10, 2027
Bond on file: $30,000 (Western Surety Co)
Bond effective: July 10, 2025
Bond expires: Until canceled
Liability insurance on file: $1,000,000 (Country Mutual Ins Co)
Insurance expires: July 6, 2027

Washington L&I licence DTHEODB836MG: active, expires July 10, 2027; bond and liability insurance on file (checked 2026-09-30). Source: Washington L&I contractor registration, bond and insurance files (record). Data as of 2026-09-30.

Data comes from Washington L&I's public contractor, bond and insurance files. Before hiring, re-check the licence at secure.lni.wa.gov/verify (it also shows violations and lawsuits) and ask for the written disclosure statement. Planning an ADU in Seattle or Bellevue? See ADU Builder Index.

Other contractors in Seattle

All 2283 in Seattle →