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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 · Marin

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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

Map for browsing; agency service areas may differ.

Map source

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

County government · Marin

Community Development Agency

Building & Safety · Planning & Zoning

Marin zoning and Countywide Plan lookup instructionsOfficial instructions

The official lookup explains address/APN searching, leading zeros and selecting the matching dropdown result. Vacant parcels require the Assessor Parcel Number. Countywide Plan designations and zoning are described separately.

Official zoning/Countywide Plan search

Vacant parcels are only searchable by Assessor Parcel Number.

Official information checked October 26, 2026 · Details & sources

Official lookup input guidance

Begin typing the full address or Assessor Parcel Number, including leading zeros.

Official information checked October 26, 2026 · Details & sources

Source checked October 26, 2026

Marin official map information · Marin 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

Type in your address or your Assessor Parcel Number (shown on your tax documents). Vacant parcels are only searchable by Assessor Parcel Number.

Saved evidence: e3526a3584faac86 · Agent source review

Full guide, contact details & sources →

Look up zoning maps in California

Community Development Agency

Look up zoning maps by county