The California Land Conservation Act, commonly known as the Williamson Act, is a state agricultural land preservation program in which each local jurisdiction can elect to participate. Santa Clara County as well as some local cities currently participate in this program.
An agricultural preserve defines the boundary of an area within which a city or county will enter into Williamson Act contracts with landowners. The boundary is designated by resolution of the board or city council having jurisdiction. Agricultural preserves must generally be at least 100 acres in size.
Only land located within an agricultural preserve is eligible for a Williamson Act contract. Preserves are regulated by rules and restrictions designated in the resolution to ensure that the land within the preserve is maintained for agricultural or open space use.
The Williamson Act Program enables local governments to enter into contracts with private landowners for the purpose of restricting specific parcels of land to agricultural or related open space use. Private land within locally-designated agricultural preserve areas is eligible for enrollment under contract.
What are Agricultural Exempt Buildings? Agricultural Exempt Buildings are structures that comply with Appendix “C” of the current California Building Code. Agricultural Exempt Buildings shall qualify for an “exempt building permit” if they are located on a parcel of land that is at least 20 acres or is zoned AG- 20.
A landowner must submit an application to the City or County requesting the contract be cancelled for a portion or the entirety of the contracted area. See the Contract Cancellations page for detailed information and constraints. For questions regarding cancellations, contact your local Planning Department.