OneStop ADU is a reliable construction company based in San Diego, CA, founded in 2021, specializing in complete ADU (Accessory Dwelling Unit) and backyard home solutions. With a skilled in-house licensed construction team boasting over 25 years of experience and leadership with more than 50 years in San Diego's real estate market, we provide trusted and expert service. Our offerings include six pre-designed floor plans, assistance with permits, financing options, high-quality construction, and property management for rental units. We offer three exterior styles — Contemporary, Craftsman, and Spanish/Mediterranean — with a focus on ADA-compliant units for accessible living. Unlike prefab alternatives, we take a traditional approach to construction, ensuring your backyard home project is seamless, dependable, and stress-free.