CONTRA COSTA COUNTY
COMMUNITY DEVELOPMENT DEPARTMENT

Advance Planning Division

 

RESOURCES *
Contra Costa County Land Conservation Program - Q & A
Department of Conservation - Q & A
Historical Changes
Easement Exchange Program
Land Conservation Contract Application
Map of Properties under Contract  [Large File - 3.7 MB]
Example of Land Conservation Contract

Williamson Act Program

The California Land Conservation Act of 1965, better known as the Williamson Act, created a program to help counties preserve agricultural land and open space by offering a tax incentive to property owners. The Act provides an arrangement where private landowners voluntarily restrict their land to agricultural and compatible open space uses under a contract with the County, known as a Land Conservation Contract.

The Williamson Act contract is an enforceable restriction on land and is binding on successors to both the landowner and the local government. The minimum term for a contract is ten years, and the contract is automatically renewed annually, unless either party gives advance notice of non-renewal or the contract is canceled.

Contra Costa County has been implementing the Williamson Act since 1968 when the Board of Supervisors adopted Ordinance 68-53, which authorized the creation of Agricultural Preserves and the execution of Land Conservation Contracts pursuant to state law. At present, Contra Costa County has 417 parcels of agricultural  land with Land Conservation Contracts, covering approximately 48,000 acres.

The Department of Conservation governs the program at the state level.  The program is administered locally, through a combined effort of the Assessor’s office, planning staff in the Community Development Department, and County Counsel. The Assessor determines the value of the land under contract with a restricted value, based on income capability rather than market value, giving tax relief to property owners.

Contact:
For questions regarding Contra Costa County's Williamson Act Program please call:
John Oborne at 925-335-1207

 

Advance Planning Division | Community Development Department

* This symbol identifies links to files in PDF format (view using Adobe Acrobat Reader ®, which can be downloaded for free).

 

651 Pine Street, 4th Floor - North Wing, Martinez, CA  94553
Phone:  (925) 335-1290 -- Fax: (925) 335-1299

If you have any suggestions or problems using our website, please let us know using our Website Feedback Form.

Contra Costa County | Legal Disclaimers/Notices