Family-owned Bay Area general contractor with 24 years in business and a credential stack nobody else in the directory has matched — Diamond Certified for 19 consecutive years, BBB A+ accredited for 18+ years, and CSLB licensed #865155. Founded by Ilan Sigura, the company serves Santa Clara, San Mateo, Alameda, and San Francisco counties with ADU construction as a core service. ADU types include attached, detached, garage conversions, and second-story builds — all design-build, handled in-house. Also known for insurance claim negotiation on fire and water damage projects, a differentiator few contractors offer alongside ADU construction. Clients name Ilan directly across reviews for responsiveness, transparency, and holding to both budget and timeline.