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Look up zoning maps in California

Official zoning and land-use maps, map directories, instructions and purpose-labelled zoning inquiry channels. County/city scope, historical or partial maps and offline access are identified in each entry.

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In California, 58 county departments and 1 city government publish 60 official links for this service, 3 of them online. Reviewed requirements cover availability notices (44) and processing time (1). 56 counties have a page for it below.

Before you start · 2 things to check

Start with the jurisdiction of the property. County permit offices may serve only unincorporated areas.
Use the official map and confirm project requirements with the planning or building office.

1 guide with reviewed service links · Contra Costa

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Highlighted counties have a reviewed service guide matching this selection. An agency may serve only a city or part of a county.

California58 counties

County directory Reviewed service guides available

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U.S. Census boundaries via U.S. Atlas · 2017 edition, simplified for display.

County government · Contra Costa

Conservation & Development — Building Permits

County building permits and inspections for unincorporated Contra Costa and Clayton, Hercules, Lafayette, Moraga and Orinda. Planning approvals within those cities remain with the city or town.

Contra Costa CCMAP zoning and property research referralOfficial instructions

DCD's permit/property research page publishes CCMAP with zoning and General Plan layers for unincorporated county areas. This is that department's published map referral, without expanding its Building Permits guide into a separate countywide zoning authority.

Service area: General Plan and zoning map information for unincorporated Contra Costa County areas only. Area details & sources

CCMAP county zoning and General Plan scope

Note the general plan and zoning information is available for unincorporated County areas only.

Official information checked October 26, 2026 · Details & sources

Source checked October 26, 2026

Contra Costa official map information · Contra Costa official zoning map information candidate (opens in a new tab)

Official county map/provider evidence: exact named map, actual layer list, access instructions or limitation

Note the general plan and zoning information is available for unincorporated County areas only.

Saved evidence: 4716f0c2a939699b · Agent source review

Full guide, contact details & sources →

Look up zoning maps in California

Conservation & Development — Building Permits

Look up zoning maps by county