The Linn County Board of Supervisors recently adopted a code amendment for accessory dwelling units (ADU), which increases the maximum allowed size from 800 square feet to 1,200 square feet for ADUs in unincorporated Linn County. In addition to the size change, new language was adopted to clarify how floor area is calculated for ADUs.
An accessory dwelling unit (ADU) is a second, smaller, independent dwelling unit located on the same lot as an owner-occupied principal dwelling. ADUs create a wider range of housing options within the community, increase housing affordability (for homeowners and tenants), and may enable seniors to stay near family as they age. These smaller units include space for living, cooking, and sanitation, and the ADU may take several forms: it may be constructed as a stand-alone structure; it may be part of the principal dwelling; or it may be part of an accessory building.
For more information, please view the Accessory Dwelling Unit handout on the Planning & Development website or contact the Planning & Development Department directly at 319-892-5130, or by email at [email protected].