18.13.010   Purposes
   This section specifies regulations for three multiple family residential districts.
   (a)   RM-20 Low Density Multiple-Family Residence District [RM-20]
      The RM-20 low-density multiple-family residence district is intended to create, preserve and enhance areas for a mixture of single-family and multiple-family housing which is compatible with lower density and residential districts nearby, including single-family residence districts. The RM-20 residence district also serves as a transition to moderate density multiple-family districts or districts with nonresidential uses. Permitted densities in the RM-20 residence district range from eight to twenty dwelling units per acre.
   (b)   RM-30 Medium Density Multiple-Family Residence District [RM-30]
      The RM-30 medium density multiple-family residence district is intended to create, preserve and enhance neighborhoods for multiple-family housing with site development standards and visual characteristics intended to mitigate impacts on nearby lower density residential districts. Projects at this density are intended for larger parcels that will enable developments to provide their own parking spaces and to meet their open space needs in the form of garden apartments or cluster developments. Permitted densities in the RM-30 residence district range from sixteen to thirty dwelling units per acre.
   (c)   RM-40 High Density Multiple-Family Residence District [RM-40]
      The RM-40 high density multiple-family residence district is intended to create, preserve and enhance locations for apartment living at the highest density deemed appropriate for Palo Alto. The most suitable locations for this district are in the downtown area, in select sites in the California Avenue area and along major transportation corridors which are close to mass transportation facilities and major employment and service centers. Permitted densities in the RM-40 residence district range from thirty-one to forty dwelling units per acre.
(Ord. 5460 § 4 (part), 2019: Ord. 5373 § 10 (part), 2016: Ord. 4964 § 2 (part), 2007)