Internal Accessory Dwelling Unit (IADU)

  • House Bill 82 was passed by the legislature and signed by the Governor in 2021. This Bill requires that IADUs be permitted in all residential zones.
  • An IADU is a separate dwelling unit located entirely within the footprint of an owner-occupied single-family detached dwelling on a residentially zoned property.
  • An IADU must contain complete cooking and bathroom facilities that are independent from the primary dwelling.
  • An IADU may not change the appearance of the primary dwelling as a single-family dwelling.
  • An IADU must be served by the same power and culinary water utility meters as the primary dwelling on the property.
  • An IADU must be rented for periods of 30 consecutive days or more. Therefore, an IADU is not a short-term rental.
  • The owner of the property must occupy the primary dwelling on the property.
  • Only one IADU per property is permitted.

If you have any additional questions, please contact Jim McNulty, Planning Manager, at (435) 656-4690, Ext. 225 or via email at