CT ADU is a trusted ADU builder in Connecticut, specializing in custom modular and prefab ADUs, tiny homes, and backyard cottages. We handle zoning, permitting, financing, and construction to make ADU building easy. Our expert team includes architects to customize ADU plans, builders to manage your ADU project, local real estate agents to provide ADU rental comps and valuations and vetted ADU lenders offering high-leverage, flexible ADU loan programs. Visit our site to explore models like The Noroton, The Haven, and The Westport ADUs. We serve Fairfield County, including Darien, Fairfield, Greenwich and surrounding ADU-friendly towns. Contact us today to see if your property qualifies for an ADU and explore the best size and style for your needs!