Accessory Dwelling Units (ADU)

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The Housing Element of the Portola Valley General Plan calls for the Town to encourage the construction of second units.  Second units are a key way for the Town to accommodate new housing while still preserving the rural character of the community. 

Second Unit/ADU Ordinance

Second Unit/ADU Handout

Second Units are also called ADUs, or Accessory Dwelling Units. Both state law and our handout use ADU, which is the newer term, to refer to what the Town traditionally referred to Second Units. The Town documents use the two terms interchangeably but are transitioning to using only ADU.