Shea Construction is a San Diego design-build general contractor based in Grantville at 4401 Twain Avenue, Suite 17, operating under CSLB #908248 within the 92120 ZIP's commercial office corridor near Mission San Diego de Alcala. Founded by Stephen Shea, a San Diego native who holds a Class B-1 General Building license, the firm takes residential and commercial projects spanning custom home construction, whole-home remodels, building additions, tenant improvements, and full-structure restoration. Architectural coordination on Shea's design-build projects routes through area firms, and Domeier Architects Inc in Grantville handles the permit-ready construction documents and structural engineering packages that Shea's crew builds from on custom residential and commercial scopes. BuildZoom's permit database records 54 permitted projects for the firm, ranking Shea in the top one percent of California licensed contractors by verified project history and compliance record. The commercial portfolio includes restaurant buildouts — the company constructed Whiskers & Wine, North Park's cat wine bar and cocktail lounge — as well as retail tenant improvements, office renovations, and reconstruction of fire- and water-damaged structures. The Twain Avenue office sits at the southern edge of Grantville's industrial corridor, within a half-mile of Mission San Diego de Alcala and the Mission Gorge Road commercial spine that connects the I-8 interchange to Mission Trails Regional Park. HVAC system installation and replacement on Shea's residential builds and commercial tenant improvements coordinates with area mechanical contractors, and Duct Dynasty Heating & Air in Grantville handles the forced-air and ductless mini-split installations that meet Title 24 energy requirements on permitted construction. The firm's design services division produces in-house drafting and space planning, giving clients a single point of contact from concept rendering through construction documents, permit approval, and final inspection sign-off.