Average Units per Acre of Newly Approved Residential Development
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 35 cities/counties included in the FY 2017-18 Residential Density analysis are Atherton, Brisbane, Burlingame, Campbell, Colma, Cupertino, East Palo Alto, Foster City, Fremont, Gilroy, Half Moon Bay, Hillsborough, Los Altos, Los Altos Hills, Los Gatos, Menlo Park, Milpitas, Monte Sereno, Morgan Hill, Mountain View, Newark, Pacifica, Palo Alto, Portola Valley, Redwood City, San Bruno, San Carlos, San Jose, San Mateo, County of Santa Clara, Santa Clara, County of San Mateo, Saratoga, Sunnyvale, and Union City. Most recent data are for fiscal year 2018 (July 2017-June 2018). Residential density was calculated as the average residential density of the participating cities. Beginning in 2014, the residential density analysis began to exclude secondary units that were approved with the primary unit.
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).