In Hillsboro, OR a secondary dwelling unit (also known as Accessory Dwelling Unit) is defined as an additional dwelling unit located on the same lot as a detached single family dwelling or duplex. A dwelling unit is specified by the presence of cooking facilities.
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.
One secondary dwelling unit allowed in most zones.
Architectural consistency standards and design standards.
SDC fees waived.
Size-250-750 sq. ft.
At Dweller, we are responsible for all 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 Hillsboro Zoning Code for Accessory Dwelling Units (ADUs).