Secondary suite

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A secondary suite (also known as an accessory dwelling unit (ADU), in-law apartment, granny flat, granny annex or garden suite) is a self-contained apartment, cottage, or small residential unit that is located on a property that has a separate main single-family home, duplex, or other residential unit. It may be attached to the principal dwelling or an entirely separate unit, located above a garage, across a carport, or in the backyard on the same property. Reasons for wanting to add a secondary suite to a property may be to receive additional income, provide social and personal support to a family member, or obtain greater security.

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