Skip to content
Build This Plan

Building a house in California

How many new single-family homes each of California's counties permitted in 2025, what builders declared they would cost, and who is listed here to build one.

57,739 new homes permitted in 2025

US Census Bureau, Building Permits Survey

A lot ZIP anywhere in the US gives its county and these figures on the home page map.

Skip the map
Map of California counties, shaded by new single-family homes permitted in 2025
New single-family homes permitted in 2025, per countyUnder 5050 to 199200 to 499500 to 1,9992,000 or moreNo dataUS Census Bureau, Building Permits Survey, 2025.

Every county in California

New single-family homes permitted in 2025 and the average value builders declared per home. Permit values usually run below the full cost to build, and an average from fewer than 10 permits is left out. Sort by any column.

CountyNew homesAverage permit value
Los Angeles County10,106$275,000
Riverside County6,399$329,000
Sacramento County4,629$315,000
San Bernardino County3,578$268,000
San Diego County3,506$307,000
Kern County2,793$234,000
Orange County2,777$294,000
San Joaquin County2,520$405,000
Placer County2,462$388,000
Fresno County2,002$336,000
Santa Clara County1,795$405,000
Tulare County1,567$284,000
Madera County1,144$374,000
Alameda County1,117$394,000
Contra Costa County970$369,000
Stanislaus County894$186,000
Sonoma County790$303,000
Solano County750$354,000
Merced County697$321,000
Monterey County663$227,000
Butte County662$203,000
San Luis Obispo County642$359,000
Ventura County540$344,000
San Mateo County457$694,000
Yuba County440$422,000
Santa Barbara County433$517,000
Kings County389$348,000
El Dorado County345$481,000
Yolo County280$329,000
Napa County258$481,000
Shasta County249$356,000
San Benito County247$347,000
Imperial County224$169,000
Nevada County194$467,000
Santa Cruz County163$273,000
Humboldt County160$217,000
Marin County149$583,000
Sutter County149$412,000
Tuolumne County88$321,000
Calaveras County72$444,000
Amador County67$232,000
Lake County45$233,000
Plumas County44$169,000
Mono County41$373,000
Siskiyou County41$338,000
Trinity County33$138,000
Glenn County32$256,000
Tehama County28$315,000
Mariposa County22$268,000
San Francisco County20$1,098,000
Del Norte County17$358,000
Colusa County13$213,000
Inyo County10$291,000
Lassen County9None
Modoc County9None
Alpine County4None
Mendocino County3None
Sierra County1None

US Census Bureau, Building Permits Survey, 2025. Permit values are what builders declare and usually run below the full cost to build.

Builders and pros listed in California

Nobody is listed in California yet. Builders and pros list free anywhere in the US, and a buyer is matched to each one whose service area covers the lot.

Matching goes by distance, not state lines: a pro in a neighboring state whose service area covers your lot is on your list too. How builders are listed ยท List free

Plans to build here

Every plan is licensed for a build anywhere in the country. Each plan page shows the lot it fits and, for a ZIP, the county figures.

Browse plansPlans for builders and investorsFree build review