Housing Solutions: ADUs and Assistance Programs

Accessory Dwelling Units (ADUs)

Atherton’s Housing Element Update (HEU) includes credits from the California Department of Housing and Community Development (HCD) toward the Town’s Regional Housing Needs Allocation (RHNA). In an effort to fulfill the granted credit, th Town has expanded it’s ADU program. If you’re interested in building an ADU or Junior ADU on your property, click here to learn more. If you already have an ADU or Junior ADU on your property, consider taking our survey.

Housing Assistance Programs

  • MidPen Housing: MidPen Housing is a non-profit developer, owner, and manager of affordable housing in Northern California. 
  • HIP Housing: HIPhousing manages and operates affordable housing units and programs.
  • 21 Element: 21 Elements is a multi-year collaboration of all twenty-one San Mateo County jurisdictions, other partner agencies, and stakeholders aimed at supporting jurisdictions in developing, adopting, and implementing local housing policies and programs. 
  • Second Unit Resource: The Second Unit Center is a program of San Mateo County's Home for All initiative providing information and tools to make it easier for homeowners to build second units, and to help increase the housing supply in the County. 
  • San Mateo County Department of Housing: The County Department of Housing (DOH) is the primary source of information for affordable housing and services in the county. Below are useful links to access county housing information and resources:
    • Find rental housing. SMCHousingSearch.org is a resource to help you find a home in San Mateo County that fits your needs and budget. Property owners and managers throughout the county can post apartments or homes for rent at any time.
    • Check out our List of Affordable Housing Rental Projects (PDF) in San Mateo County with descriptions and contact information. Each affordable housing development may have its own waiting list and the waiting list may be closed. Contact each affordable housing development to find out its availability.