In the spring & summer of 2014, the San Francisco Board of Supervisors approved two significant pieces of legislation that support accessory dwelling units (ADUs), also known as “in-law” or secondary units, in the city. The first, introduced by District 3 Supervisor David Chiu and passed on April 17, enables existing illegal units to be legalized. The second, introduced by District 8 Supervisor Scott Wiener and passed on April 16, allows for the construction of new accessory dwellings in his district. These landmark legislations are huge steps for San Francisco, a city with a long history of unsuccessful attempts to pass such measures.

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