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Accessory Dwelling Unit (ADU)

FHA Single Family Housing Policy Handbook Glossary November 26 2025

Updated 08-20-2026

Accessory Dwelling Unit (ADU)

An Accessory Dwelling Unit (ADU) refers to a single habitable living unit with means of separate ingress and egress that meets the minimum requirements for a living unit. An ADU is a primary one-unit Single Family dwelling, which together constitute a single interest in real

FHA Single Family Housing Policy Handbook Glossary November 26 2025

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