ADU or Accessory Dwelling Unit

An accessory dwelling unit (ADU) is a small dwelling unit on a property that contains a single-family dwelling unit as the primary use. An ADU may be attached to or detached from the single-family dwelling. ADUs are often called “mother-in-law apartments”, “granny flats”, or “garage apartments.”

  • ADUs are permitted uses on residentially-zoned lots or parcels with a single-family dwelling, townhome, or a manufactured home.
  • A maximum of one ADU is allowed per lot or parcel.
  • The City recommends that the applicant complete their due diligence by checking any applicable private Conditions, Covenants, and Restrictions (CC&Rs) that may limit ADUs on the subject property. The City does not enforce or monitor private CC&Rs. 
  • ADUs in NorthWest Crossing must comply with special standards outlined in BDC 2.7.300. For all other properties, the standards of BDC 3.6.200 apply, summarized below. 
  • Special standards apply to units on properties that are Historic Resources or located in the Historic Districts (see Bend Code 10.20) or Waterway Overlay Zone (WOZ) (see BDC 2.7.600).