HB 151

Abstract

Development and use of accessory dwelling units.Provides that all localities shall allow for the development anduse of one accessory dwelling unit (ADU) per single-family dwelling(SFD), notwithstanding any contrary provision of a zoning ordinance.The bill defines "accessory dwelling unit" or "ADU" as an independentdwelling unit on a single-family lot with its own living, bathroom,and kitchen space that may be within or attached to SFDs or in detachedstructures on lots containing SFDs. ADUs may include basements, attics,flats, guest houses, cottages, and converted structures such as garages and sheds. The bill requires localities to regulate the sizeand design of ADUs through an approval process, as well as regulatefees, parking, and other requirements, provided that the regulations(i) are not so arbitrary, excessive, or burdensome, individuallyor cumulatively, as to unreasonably restrict the ability of propertyowners to utilize or create ADUs and (ii) do not require the propertyowner to occupy the ADU or SFD as his primary residence.