ADUniverse 2.0: Pre-approved plans for ADUs and middle housing

The City of Seattle is seeking designers, architects, and homebuilders to submit pre-approved plans for accessory dwelling units (ADUs) and middle housing. The city aims to curate a gallery of designs that meet accessibility requirements, offer a range of unit sizes, and are flexible and repeatable. Submissions will be assessed on criteria such as affordability, energy efficiency, and creativity. The submission guide outlines the requirements and criteria for the designs. Some key points include: • Accessible units that meet accessibility requirements • Range of unit sizes, including one, two, and three bedrooms • Single- and multi-level designs • Flexibility and repeatability in design • Inclusion of amenities such as bike storage and open space features • Compliance with the Seattle Building Code (SBC) and accessibility requirements The city welcomes submissions from designers, architects, and homebuilders who can provide innovative and practical designs that meet the city's requirements.