Building Affordable Housing

Affordable Units as a Percentage of Total Approved New Residential Units

Silicon Valley

Data Source:

City Planning and Housing Departments of Silicon Valley


Silicon Valley Institute for Regional Studies

Data are from Joint Venture Silicon Valley’s annual land-use survey of all cities within Silicon Valley. The 38 cities/counties included in the FY 2016-17 Building Affordable Housing analysis included Atherton, Belmont, Brisbane, Burlingame, Colma, Cupertino, Daly City, East Palo Alto, Foster City, Fremont, Gilroy, Half Moon Bay, Hillsborough, Los Altos, Los Altos Hills, Los Gatos, Menlo Park, Millbrae, Monte Sereno, Morgan Hill, Mountain View, Newark, Pacifica, Palo Alto, Portola Valley, Redwood City, San Bruno, San Carlos, San Jose, San Mateo, County of San Mateo, Santa Clara, County of Santa Clara, Saratoga, South San Francisco, Sunnyvale, and Union City. Most recent data are for fiscal year 2017 (July 2016-June 2017). Affordable units are those units that are affordable for a four-person family earning up to 80% of the median income for a county. Cities use the U.S. Department of Housing and Urban Development’s (HUD) estimates of median income to calculate the number of units affordable to low-income households in their jurisdiction.

Beginning in 2008, the Land Use Survey expanded its geographic definition of Silicon Valley to include cities northward along the U.S. 101 corridor (Brisbane, Burlingame, Millbrae, San Bruno and South San Francisco). In 2014, the Survey expanded to include all Silicon Valley cities (adding Colma, Daly City, Half Moon Bay and Pacifica).

Resources for Relevant Data and Reports (show)

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