Accessory Dwelling Units: Expanding Affordable Housing Options in Hawaii

Accessory dwelling units (ADU) are an important tool in expanding affordable housing stock, especially in areas with limited room for growth and high housing costs. This policy brief describes ADUs and their benefits and provides examples of successful ADU policies from around the country. This brief concludes with initial proposals for policies, initiatives, and reforms that would balance the needs and concerns of communities while allowing and facilitating ADU creation.