DADU. Home 9 5906B 41st Ave SW, Seattle, WA 98136 7 5906B 41st Ave. Custom design and construction of a Detached Accessory Dwelling Unit (DADU) in Seattle, WA. SALE PRICE: TBD ADDRESS: 5906B 41st Ave SW, Seattle, WA 98136 TYPE: DADU COMPLETION DATE: September, 2024 PHOTOS: Exterior Interior Aerial Exterior Photos. Interior Photos. Aerial Photos.