18.40.050   Location and Use of Accessory Buildings
   (a)   Accessory Buildings Setbacks
   Except as otherwise provided in this section, accessory buildings shall at all times be located in conformance with requirements for principal buildings, and shall not be located in any required front, side or rear yard.
   (b)   Limitations of Uses for Accessory Buildings
   In residential zones, accessory buildings may be located in a required interior yard subject to the following limitations:
      (1)   An accessory building shall not be used for living and/or sleeping purposes unless the building was legally constructed for or legally converted to living and/or sleeping purposes prior to October 13, 1983.
      (2)   An accessory building shall not be located in a required front yard, a required street yard, or a required rear yard of a through lot.
      (3)   An accessory building shall not be located in a required interior side or rear yard unless the building is at least seventy-five feet from any street line, measured along the respective lot line.
      (4)   Accessory buildings located within a required interior yard as permitted by this section shall be subject to a maximum height established by a daylight plane beginning at a height of eight feet at the property line and increasing at a slope of three feet for each ten feet of distance from the property line, to a maximum height of twelve feet.
      (5)   No accessory building shall have more than two plumbing fixtures. Accessory buildings shall not be allowed to be turned into habitable space nor shall these structures be allowed to have showers (indoor or outdoor), gas lines, washer/dryers, and/or cooking facilities to be provided inside or attached to the structure, unless the structure is proposed as an ADU/JADU that satisfies all requirements of the Palo Alto Municipal Code.
   (c)   Swimming Pool, Hot Tub and Spa
      No swimming pool, hot tub, spa or similar accessory facility shall be located in any portion of a required front or street side yard.
(Ord. 5585 § 6, 2023: Ord. 4934 § 3 (part), 2007)