Introduction: SHARPBUILT Construction Inc. is a Marin County licensed general contracting and construction management company specializing in modern residential design and build. We subscribe to the theory that design and build should be a simple process. Our Marin County remodeling contractor services offer room additions, kitchen remodeling, bathroom remodeling, custom home building, green remodeling, structural retrofitting, waterproofing, basement refinishing, and attic conversions.