Cities in the US are embracing Accessory Dwelling Units (ADUs) to address the nationwide housing crisis. Often built on existing single-family home lots, ADUs offer an affordable option for increasing housing availability in established neighborhoods. However, like any new housing development, effective regulations are critical for widespread adoption. Los Angeles has emerged as a testing ground in using ADUs to address its housing shortage, providing valuable insights for other cities. The city's experience underlines the challenges of establishing regulations, while also promoting the benefits of ADUs as an affordable housing solution.
In 2017, a California law aimed at easing regulations for Accessory Dwelling Units (ADUs) – basement suites, garage apartments, and backhouses – went into effect. The impact in Los Angeles was dramatic. Within two years, building permits for ADUs jumped by 30%, making up a significant one-fifth of all new housing permits issued. In stark contrast, big cities in other states like Seattle saw a much smaller impact, with ADUs making up only 2% of new housing permits during the same period.
