Data Source:

City Planning and Housing Departments of Silicon Valley

Analysis:

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 35 cities/counties included in the FY 2021-22 Building Affordable Housing analysis included Belmont, Burlingame, Campbell, Colma, Cupertino, Daly City, East Palo Alto, Foster City, Fremont, Gilroy, Half Moon Bay, Hillsborough, Los Altos, Los Altos Hills, Menlo Park, Millbrae, Milpitas, Monte Sereno, Morgan Hill, Mountain View, Newark, Pacifica, Palo Alto, Redwood City, San Bruno, San Carlos, San Jose, San Mateo, San Mateo County, Santa Clara, Santa Clara County, Saratoga, South San Francisco, Sunnyvale, Union City, and Woodside. Most recent data are for fiscal year 2021-22 (July 2021 through June 2022). 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 2018-19, the total number of newly approved units included accessory dwelling units (ADUs) issued a permit in lieu of a planning approval.

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

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