Whether a property is defined as a one-unit property with an ADU or a two- to four-unit property will be based on the characteristics of the property, which may include, but are not limited to, the existence of separate utility meter(s), a unique postal address, and whether the unit can be legally rented. The appraiser must determine compliance with this definition as part of the analysis in the Highest and Best Use section of the appraisal.
An ADU is generally an additional living area independent of the primary dwelling that may have been added to, created within, or detached from the primary dwelling. The ADU must have basic requirements for living, sleeping, cooking, and bathroom facilities on the same parcel as the primary dwelling. See B2-3-04, Special Property Eligibility Considerations for complete ADU eligibility requirements.
For additional information, see B4-1.3-05, Improvements Section of the Appraisal Report.