In California, the demand for affordable housing has led to the rise of Accessory Dwelling Units (ADUs), and the state has enacted various laws to streamline their construction. Senate Bill (SB) 9 and SB 10, passed in 2021, are pivotal in encouraging the development of ADUs.

SB 9 allows homeowners to subdivide their lots, which can facilitate the addition of multiple ADUs, effectively increasing the housing supply without large-scale developments. It simplifies zoning and permits for smaller, affordable homes and mandates that local governments approve ADU applications within 60 days, provided they meet state requirements.

SB 10, on the other hand, provides additional flexibility for local jurisdictions to rezone areas for higher-density residential units. It can help cities convert single-family neighborhoods into mixed-use areas with ADUs, alleviating some of the housing shortage.

Additionally, statewide ADU laws, effective since 2020, removed barriers by limiting local restrictions, offering incentives like reduced fees, and easing the approval process for homeowners wishing to build these small units. These laws are crucial to California’s goal of tackling its housing crisis, as ADUs provide affordable, sustainable living options while maintaining the character of established neighborhoods. The laws empower homeowners to create versatile housing solutions, adding much-needed density in urban areas.