Multi-residential property refers to buildings containing multiple dwelling units, including apartment buildings, condominiums, and purpose-built rental housing. For property tax purposes, multi-residential properties may be assessed and taxed differently than single-family homes or commercial properties. Some provinces have specific multi-residential tax classes with rates between residential and commercial. Assessment methodologies for multi-residential properties may use income approaches rather than comparable sales. Tax treatment of multi-residential properties affects housing affordability and investment decisions. Some municipalities have reduced multi-residential tax rates to encourage rental housing construction and maintain affordable rents.