18.10.010   Purposes
   Three low-density residential districts are defined in this chapter. Requirements for the single-family residential (R-1) district and related subdistricts and combining districts are included in Chapter 18.12. The specific purpose of each low-density residential district is stated below:
   (a)   Residential Estate District [RE]
   The RE residential estate district is intended to create and maintain single-family living areas characterized by compatibility with the natural terrain and native vegetation. The RE district provides locations for residential, limited agricultural, and open space activities most suitably located in areas of very low density or rural qualities. Accessory dwelling unit(s) and accessory structures or buildings are appropriate where consistent with the site and neighborhood character. Community uses and facilities should be limited unless no net loss of housing units would result.
   (b)   Two Family Residential District [R-2]
   The R-2 two-family residence district is intended to allow a second dwelling unit under the same ownership as the initial dwelling unit on appropriate sites in areas designated for single-family use by the Palo Alto Comprehensive Plan, under regulations that preserve the essential character of single-family use. Community uses and facilities should be limited unless no net loss of housing would result.
   (c)   Two Unit Multiple-Family Residential District [RMD]
   The RMD two-unit multiple-family residence district is intended to allow a second dwelling unit under the same ownership as the initial dwelling unit on appropriate sites in areas designated for multiple-family use by the Palo Alto Comprehensive Plan. The RMD district is intended to minimize incentives to replace existing single-family dwellings, maintain existing neighborhood character and increase the variety of housing opportunities available within the community. The maximum density in this zone shall not exceed seventeen dwelling units per acre.
(Ord. 5412 § 3, 2017: Ord. 4875 § 2 (part), 2005)