Contra Costa County Plat Maps (California)

Search for Contra Costa County, CA plat maps. Plat maps include information on property lines, lots, plot boundaries, streets, flood zones, public access, parcel numbers, lot dimensions, and easements.


Clerks maintain and preserve important public records for a county or local government, including detailed local maps such as plat maps in Contra Costa County, CA. These Contra Costa County plat maps show the property boundaries in a neighborhood, including lots and their dimensions, boundary locations, streets and street numbers, and parcel numbers. These Contra Costa County maps contain important information for prospective buyers who may be concerned about easements, rights of way, flood zones, and public access on a particular plot of land. Clerks often provide online access to plat maps.

Antioch City Clerk Antioch CA 200 H Street 94509 925-779-7007

Brentwood Clerk Brentwood CA 708 3rd Street 94513 925-516-5440

Contra Costa Clerk Richmond CA 100 South 37th Street 94804 510-374-3241

Contra Costa County Clerk Martinez CA 555 Escobar Street 94553 925-335-7800

Hercules City Clerk Hercules CA 111 Civic Drive 94547 510-799-8215

Oakley City Clerk Oakley CA 3231 Main Street 94561 925-625-7000

Pinole City Clerk Pinole CA 2131 Pear St 94564 510-724-8928

Pleasant Hill City Clerk Pleasant Hill CA 100 Gregory Lane 94523 925-671-5237

Richmond City Clerk Richmond CA 450 Civic Center Plaza 94804 510-620-6513

San Pablo City Clerk San Pablo CA 1 Alvarado Street 94806 510-215-3005


Treasurers and Tax Collectors are responsible for collecting taxes at the local level and distributing these funds in Contra Costa County, CA. In order to collect Contra Costa County property taxes, the Treasurer and Tax Collector typically maintains maps covering its jurisdiction, including plat maps. These plat maps provide detailed information on a neighborhood or local area, including property boundaries and divisions, lot dimensions, parcel and street numbers, and land sizes. Contra Costa County plat maps also contain important information for prospective buyers about flood zones, easements, rights of way, and public access. The Contra Costa County Treasurer and Tax Collector may provide online access to plat maps on its website.

Concord City Treasurer Concord CA 1950 Parkside Drive 94519 925-671-3183

Contra Costa County Treasurer-Tax Collector's Office Martinez CA 625 Court Street 94553 925-957-5280

Pinole City Treasurer Pinole CA 2131 Pear Street 94564 510-724-9009


Assessors are responsible for determining the value of taxable property within Contra Costa County, CA. These property assessments are used to levy property taxes. In addition, Contra Costa County Assessors maintain detailed neighborhood maps that contain information about the properties. These plat maps include all the lots in a tract of land, boundary locations, street numbers, property lines, and lot dimensions. Contra Costa County plat maps also show any easements or rights of way. Assessors are responsible for assigning a parcel number to each lot, which appears on the map. Plat maps may be available online through the Assessor's website.

Contra Costa County Assessor's Office Martinez CA 2530 Arnold Drive 94553 925-313-7500


Recorders of Deeds maintain real estate ownership documents to ensure the accuracy of property, land, and property tax records in Contra Costa County, CA. As part of this responsibility, Recorders of Deeds typically keep detailed Contra Costa County plat maps. These maps show the subdivisions in a tract of land, including boundary locations, parcel and street numbers, property lines, and lot dimensions. Plat maps also include Contra Costa County flood zones, easements, and rights of ways, as well as public access land. The Recorder of Deeds often provides public access to plat maps through its website.

The County Clerk Recorder’s Office Martinez CA 555 Escobar Street 94553 925-335-7900