In Milwaukie, OR, an “Accessory Dwelling Unit” is a second dwelling unit on a lot with a single-family detached dwelling. An ADU is incidental to, and smaller than, the main dwelling unit. An ADU can either be part of the main structure, attached to the main structure, or detached. ADU’s must include areas and equipment for sleeping, cooking, and sanitation (bathrooms and toilets).
This guide quickly outlines a summary of key zoning and construction standards. For an in-depth review of the application and review procedures for installing an ADU, see the pdf below.
1 attached or detached ADU per residential property, attached and detached have different standards.
Architectural consistency standards plus design and privacy standards,
SDC Fees- around $12,000+
Size-Type 1- 600SF, Type 2-800 SF or 75% of primary dwelling.
At Dweller, we are responsible for all of tasks, including design, permitting, construction and installation of the ADU. As part of this model, Dweller’s fixed cost covers not only the cost of construction and installation, but also the cost of permitting, utility connections and landscaping.
Click here to learn more about the Milwaukie’s Permitting Code for Accessory Dwelling Units (ADUs).