Manufacturer of high-quality ergonomic and affordable DIY tiny prefab houses and move-in ready turnkey ADU solutions. ?Our focus is to design and manufacture low cost, high-quality ergonomic and affordable tiny prefab houses that every homeowner can opt to DIY or have TurnKey ADU complete the entire project for you, ready to move in.? At Turnkey ADU we design tiny house and Prefab ADU floor plans, deliver factory-built prefab house kits with a panelized system, and as a complete finished tiny prefab house kit. Simple TurnKey ADU kits.