Contra Costa County Property Search by Owner Name, Address & Parcel ID
Enter a property address, owner name, zip code, city name or parcel ID to search Contra Costa County property records instantly. Our free property search tool helps you quickly find ownership details, assessed value, parcel information, sales history, property characteristics, and other available public records. Start your search below and access the property information you need in seconds.
Total Cities
19
Total Parcels
387,831
Median Home Value
$837,000
Data Updated
August 2026
Property Tax, Maps & Real Estate Resources
Tax Calculator
Estimate property taxes using the latest assessed values, local tax rates, and available exemptions with our simple and accurate calculator.
Tax Rate
Check current property tax rates, assessment details, special taxes, and district charges to better understand your annual tax obligations.
Zoning & Maps
View parcel boundaries, zoning designations, GIS maps, flood zones, and land use information before buying, selling, or developing property.
Real Estate Updates
Follow recent housing market trends, home prices, sales activity, inventory changes, and local real estate insights to make informed property decisions.
Contra Costa County CA Assessor
The Contra Costa County Assessor’s Office is responsible for identifying, valuing, and maintaining assessment records for taxable properties. It also manages parcel maps, property ownership information, exemptions, and assessment services for property owners throughout the county
What Does the Assessor's Office Do?
- Assesss residential and commercial properties.
- Maintains official parcel and assessment records.
- Updates ownership and mailing information.
- Processes homeowner and property tax exemptions.
- Reviews assessment value requests when eligible.
- Provides parcel maps and property information.
- Helps property owners with assessment-related questions.
- (925) 313-7400
- 2530 Arnold Drive, Suite 100, Martinez, CA 94553
- Monday–Friday, 8:00 AM – 4:00 PM
Contra Costa County Real Estate Market Trends (2025–2026)
Contra Costa County’s housing market went through several changes during 2025 and 2026, with movement in property values, home sales, mortgage lending, and foreclosure activity shaping the overall direction of the local real estate market.
Contra Costa County Housing Market Trends (2025–2026)
This visual tracks changes in home prices, lending activity, sales volume, and foreclosure trends throughout Contra Costa County between 2025 and 2026.
Median Home Prices Continued to Reach New Highs
Median home prices increased from $815,000 in January 2025 to $892,000 in June 2026 before easing slightly to $885,000 in July 2026, showing sustained long-term housing market appreciation.
Buyers Needed Larger Down Payments
Median down payments rose from $163,000 in January 2025 to $178,400 in June 2026, before slightly declining to $177,000 in July 2026, reflecting steadily increasing home purchase costs.
Home Sales Remained Strong Throughout Spring
Homes sold climbed from 610 in January 2025 to 1,050 in June 2025 and reached 1,090 in June 2026 before easing to 1,030 during July 2026.
Purchase and Refinance Loans Followed Different Trends
Purchase loans increased from 488 to 872, while refinance loans moved differently, rising from 340 to 510 before declining to 335 by July 2026, reflecting changing borrowing patterns.
HELOC Activity Reflected Growing Home Equity
HELOC loans increased from 215 in January 2025 to 350 in June 2026 before easing to 315 in July 2026, indicating homeowners increasingly accessed accumulated property equity.
Foreclosure Filings and Starts Increased Gradually
Foreclosure filings ranged from 98 to 152, while foreclosure starts varied between 65 and 100 across the period, highlighting moderate foreclosure activity without significant market-wide distress.
Completed Foreclosures Stayed Relatively Low
How to Search Contra Costa County Property Records
Finding property records is quick and simple with our search tool. Choose the search method that matches the information you have, enter the required details, and review the matching property records. You can search using an owner name, property address, parcel number, city, ZIP code, or combine multiple filters for more accurate results.
Enter the property owner’s first name, last name, or business name in the search field and click Search. Our tool will display matching property records associated with that owner, including parcel details, ownership information, assessed values, property characteristics, and other available public record data.
Type the complete property address or just the street number and name to begin your search. The tool will locate matching properties and display available information such as ownership details, parcel number, assessed value, property features, sales history, and other public records.
If you already know the parcel number (APN), enter it exactly as listed and start the search. Because every parcel number is unique, this method usually returns the most accurate property record with ownership details, assessment information, parcel data, and related public records.
Enter a valid ZIP code to browse properties located within that area. This search method helps you explore multiple property records, compare nearby parcels, and quickly locate ownership information, assessed values, parcel details, and other available public records.
Select or enter the city where the property is located to narrow your search results. This option is useful when you know the property’s location but do not have the full address or parcel number, making it easier to find matching records.
What Information Does Our Property Search Tool Provide?
Our property search tool brings together essential property records in one place, making it easier to research ownership, assessments, property characteristics, and location details. Search a record once and access the most useful information without browsing multiple public sources.
Property Identification
Quickly identify a property using official reference numbers and basic location details.
- Assessor ID
- Assessor's Parcel Number (APN/AIN)
- Roll year
- Tax rate area code
- Property classification
Ownership & Assessment
Review important assessment details that help you understand a property’s taxable status and valuation.
- Total assessed value
- Taxable value
- Land value
- Improvement value
- Property tax status
Property Details
View the physical characteristics of the property for better research and comparison.
- Property type
- Building count
- Living area
- Bedrooms & bathrooms
- Year built
Tax & Exemptions
See available tax-related information and exemptions recorded for the property.
- Homeowners' exemption
- Real estate exemption
- Fixture exemption
- Personal property exemption
- Total exemptions
Address & Location
Access accurate property location information for mapping and identification purposes.
- Street address
- City & ZIP Code
- Unit information
- Latitude & longitude
- Region details
Parcel & Legal Records
Explore additional parcel information used for legal identification and land records.
- Legal description
- Land use details
- Property use codes
- Cluster information
- Recording date
Communities Covered in Our Contra Costa County Property Database
Our property database covers records across 19 incorporated cities and towns along with 31 unincorporated communities, giving you access to property information from every major area within Contra Costa County.
Antioch
Brentwood
Clayton
Concord
Danville (Town)
El Cerrito
Hercules
Lafayette
Martinez
Moraga (Town)
Oakley
Orinda
Pinole
Pittsburg
Pleasant Hill
Richmond
San Pablo
San Ramon
Walnut Creek
31 Unincorporated Communities
Nearby Counties to Explore
If you can’t find the property you’re looking for, it may be located in a neighboring county. Our database also supports property searches across nearby California counties, making it easy to continue your search without starting over.
Contra Costa County Property & County Information
| Property & County Information | Contra Costa County Details |
|---|---|
| County | Contra Costa County |
| State | California (CA) |
| County Seat | Martinez |
| Incorporated Cities | 19 Cities & Towns |
| Population | Approximately 1.17 Million Residents |
| Total Property Records | Available Through Official Contra Costa County Assessment Records |
| Median Home Value | Current Market Values Available Through Official & Local Real Estate Records |
| Property Tax Information | Based on California Proposition 13 with Additional Local Assessments by Tax Rate Area |
| Property Assessment System | California Proposition 13 Assessment Standard with Reassessment After Qualifying Events |
| Primary Property Types | Single-Family, Condominium, Multi-Family, Commercial, Industrial, Agricultural & Vacant Land |
| Major Property Uses | Residential, Commercial, Industrial, Agricultural, Mixed-Use & Public Properties |
| School Districts | Multiple Public School Districts Including Mt. Diablo, West Contra Costa & San Ramon Valley |
| Time Zone | Pacific Time (PT) |
| Flood Zone Information | Available Through FEMA Flood Maps and Official County GIS Services |
| Property Search Options | Owner Name, Property Address, APN, City, ZIP Code & Advanced Search |
| Property Records Available | Ownership, Assessed Value, Parcel Data, Property Details, Tax Information & GIS Maps |
| Official Assessor | Contra Costa County Assessor – Kristen B. Cunniffe |
| Official Records Source | Contra Costa County Assessor's Office & Clerk-Recorder's Office |
| GIS & Parcel Maps | Official Interactive GIS Parcel Maps, Aerial Imagery & Geographic Data Available |
| County Property Feature | Official Wildfire Hazard Zone Maps and Risk Layers Available Through County GIS Services |
FAQ's
Why can't I find a property in the search results?
Some properties may not appear because the search information is incomplete, misspelled, or recently updated. Try searching with the property’s APN, full address, owner name, or use multiple search filters to improve your results.
How often are Contra Costa County property records updated?
Our property database is updated regularly to reflect the latest available county property information. However, recently recorded ownership changes or assessments may take some time before appearing in searchable records.
Can I search for vacant land and commercial properties?
Yes. The search tool includes various property types, including residential homes, vacant land, commercial buildings, industrial properties, agricultural parcels, and other taxable real estate where records are available.
Does this search tool show the current property owner?
Yes. When ownership information is available in public records, the search results include the current owner along with other property details maintained in the county assessment database.
Can I verify a property's parcel boundaries before buying?
Yes. After locating a property, you can review available parcel information and mapping data to better understand property boundaries, parcel identification, and the property’s recorded location.
Are recorded documents available through this search?
This tool primarily provides property record information. Official recorded documents, such as deeds, liens, and other recorded instruments, are maintained by the Contra Costa County Clerk-Recorder and may require a separate records search.
Can I use the search results for legal or ownership verification?
The information is intended for property research and general reference. If you need records for legal proceedings, title verification, or other official purposes, obtain certified documents from the appropriate county office.
What should I do if property information appears incorrect?
Property records occasionally change because of reassessments, ownership transfers, or county updates. If you believe a record is inaccurate, compare it with the latest official county records or contact the appropriate county office for verification.
Can I search properties located near Contra Costa County?
Yes. If the property you’re looking for is close to the county boundary, you may also want to search neighboring counties such as Alameda, Solano, San Joaquin, Sacramento, Marin, or San Francisco.