Contra Costa County Property Viewer

Search for a Contra Costa County CA property viewer. A property viewer provides information on property maps, boundary lines, zoning boundaries, parcel divisions, parcel viewer, property appraisals, property assessments, property taxes, unpaid property taxes, tax liens, foreclosures, unclaimed parcels, property owner information, building permits, property research, deeds, titles, historical property taxes, property tax rates, and historical maps.


Assessor Offices in Contra Costa County CA calculate the value of all taxable property in their municipality by conducting property appraisals. They may also be responsible for determining the property taxes for each parcel. Assessor Offices maintain information on all properties, including property maps, boundary lines, zoning boundaries, and parcel divisions. This information is often available in a property viewer on the Assessor Office website. Contra Costa County property viewers may also provide information on appraisal values, zoning restrictions, and Contra Costa County property tax assessments. They can be used to locate unclaimed parcels, public property, and look up property owner information or parcel numbers in Contra Costa County.

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


Historical Societies in Contra Costa County CA maintain documents and objects that have historical value, and this can include property records. Historical Societies may keep historic Contra Costa County property tax records, property sale documents like deeds and titles, or property maps from different eras. They may also provide property information in the form of a property viewer, which can show historic property boundaries, changes to municipal lines and zones, and ownership information. Contra Costa County property viewers can also show property appraisal values and property tax rates over time, and they are an useful tool for conducting research. Property viewers may be available online through the Historical Society website.

Antioch Historical Society Antioch CA 1500 West 4th Street 94509 925-757-1326

Clayton California Historical Society Clayton CA 6101 Main Street 94517 925-672-0240

Concord California Historical Society Concord CA 1601 Sutter Street 94520 925-827-3380

Contra Costa County Historical Society Martinez CA 610 Main Street 94553 925-229-1042

East Contra Costa Historical Society Brentwood CA Sellers Avenue 94513 925-634-8651

Lafayette Historical Society Lafayette CA 3491 Mount Diablo Boulevard 94549 925-283-1848

Martinez Historical Society Martinez CA 1005 Escobar Street 94553 925-228-8160

Orinda Historical Society Orinda CA 24 Orinda Way 94563 925-254-1353

Pittsburg Historical Society Pittsburg CA 515 Railroad Avenue 94565 925-439-7501

Walnut Creek California Historical Society Walnut Creek CA 2660 Ygnacio Valley Road 94598 925-935-7871


Building Departments in Contra Costa County CA create and enforce codes and regulations to ensure the construction of safe buildings. As part of this responsibility, Building Departments may keep Contra Costa County property viewers, which display information about all the properties in the department's area. These property viewers may include information on parcel numbers, property tax assessments, building permits, and occupancy permits. They also show property zones, including the rules and regulations for each zone and zoning boundaries, making them useful resources for property owners or prospective buyers. Contra Costa County Building Department property viewers may be available online.

Brentwood Permits Brentwood CA 104 Oak Street 94513 925-516-5406

Brentwood Planning Department Brentwood CA 118 Oak Street 94513 925-516-5405

Clayton Zoning Clayton CA 6000 Heritage Trl 94517 925-673-7340

Concord Permits Concord CA 1950 Parkside Drive 94519 925-671-3075

Contra Costa Building Department Martinez CA 651 Pine Street 94553 925-646-4108

Contra Costa Planning and Zoning Department Martinez CA 651 Pine Street 94553 925-335-1381

Danville Planning Department Danville CA 510 La Gonda Way 94526 925-314-3310

El Cerrito Planning Department El Cerrito CA 10890 San Pablo Avenue 94530 510-215-4330

Martinez Zoning Martinez CA 525 Henrietta Street 94553 925-372-3515

Moraga Planning Department Moraga CA 329 Rheem Boulevard 94556 925-888-7040

Orinda Planning Department Orinda CA 14 Altarinda Road 94563 925-253-4211

Pinole Building Department Pinole CA 2131 Pear Street 94564 510-724-8914

Pinole Planning Department Pinole CA 2131 Pear Street 94564 510-724-9014

Richmond Building Department Richmond CA 450 Civic Center Plaza 94804 510-620-6868

Richmond Planning and Zoning Department Richmond CA 1401 Marina Way South 94804 510-620-6706

San Pablo Zoning San Pablo CA 13831 San Pablo Avenue 94806 510-215-3030

San Ramon Building Department San Ramon CA 2401 Crow Canyon Road 94583 925-973-2582

San Ramon Building Department San Ramon CA 2401 Crow Canyon Road 94583 925-973-2580

Walnut Creek Zoning Walnut Creek CA 1666 North Main Street 94596 925-256-3558


Treasurer and Tax Collector Offices in Contra Costa County CA collect property taxes for a local government and distribute these funds. They maintain several property records that may be available as part of Contra Costa County property viewers. A property viewer, also called a Contra Costa County property map, includes property tax assessments, real estate appraisal reports, boundary lines, and zoning boundaries. These viewers may also provide information on the current owners, parcel numbers, and unclaimed parcels. Contra Costa County property owners or potential buyers can use property viewers to locate information about paid and unpaid property taxes, tax liens, and foreclosures. Property viewers are typically available on the Treasurer and Tax Collector Office 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


Archives in Contra Costa County CA preserve records that have historical significance for a local area, which can include property records. Some Archives may provide property information in the form of a property viewer, which can be used to look up historic Contra Costa County property boundaries, ownership information, and property divisions over time, as well as historical city and town maps. These Contra Costa County public property records may also list historical property tax rates or property value assessments and any changes to property maps over time, which make them valuable for conducting genealogical research. Archives may provide online access to their property viewers.

Martinez Divorce Records Archive Martinez CA 1111 Ward Street 94553 925-646-2967


Recorders of Deeds in Contra Costa County CA maintain real estate ownership documents as part of their job to ensure the accuracy of property, land, and property tax records. They have records on every property in their municipality, and they may provide a property viewer to look up this information. Contra Costa County property viewers provide information on parcel boundaries, property owners, property divisions, and zoning boundaries. They can also show Contra Costa County parcel numbers, unclaimed parcels, and property tax information, including property tax assessments, unpaid property taxes, and tax liens or foreclosures. Recorders of Deeds may provide online access to a property viewer on their website.

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