DADU. Home 9 Completed Projects 9 DADU 9 304 32nd Ave E, Seattle, WA 98112 7 304 32nd Ave. Custom design and construction of a 1,011 sq. ft. Detached Accessory Dwelling Unit (DADU) in Seattle, WA. SALE PRICE: TBD ADDRESS: 304 32nd Ave E, Seattle, WA 98112 TYPE: DADU COMPLETION DATE: November, 2023 PHOTOS: Exterior Interior Exterior Photos. Interior Photos.