Assessor explains Williamson Act, AB 1265 and county direct-charge; board asks for deeper fiscal analysis

County Assessor Elissa Douglas briefed the Board of Supervisors on Aug. 12 about the Williamson Act (California Land Conservation Act of 1965), the county’s implementation of AB 1265, and recent changes that have increased property assessments for some enrolled parcels.

Douglas said Butte County currently has about 1,475 Williamson Act parcels, approximately 220,000 acres, and that the county’s implementation of AB 1265 (adopted locally in 2011) applies a 10% direct charge on the tax savings that landowners receive under the program. She said the county’s AB 1265 direct-charge program generates roughly $700,000–$716,000 in recent years; that revenue has been accounted for in the county general fund and was included in the budget the board adopted earlier this year.

Douglas also said her office updated “rental” rates used to value grazing land for the first time in about 15 years; those adjustments, combined with other cost pressures such as groundwater sustainability fees (SGMA), higher operating costs, lower commodity prices and temporarily higher state capitalization rates, have increased the assessed restricted values used on Williamson Act parcels, producing considerably higher tax bills for some landowners. She noted the state capitalization rate has fallen in 2024 and 2025, which will lower assessments going forward.

Public comment from ranchers and Farm Bureau representatives described financial strain on small ranches and urged the board to reconsider the county direct-charge. Commenters said higher property tax bills and other fees have increased pressure to sell or subdivide land, which can increase fragmentation and change land use.

Board response: Supervisors agreed to request staff provide a deeper fiscal analysis of the effects of rescinding or modifying the direct charge (the board controls local adoption of AB 1265 implementation), and to bring a staff report back to a future meeting. County staff noted a procedural deadline of Sept. 9 for changes to appear on the next tax roll and said the $700,000 is embedded in the current fiscal-year budget, creating a near-term general-fund impact if the board were to repeal the charge.

What the county cannot change: Douglas emphasized that state rules govern the valuation approach for Williamson Act parcels (valuation on actual agricultural use rather than highest-and-best use) and that the 10% direct charge amount was set by state legislation; only the county can choose whether to implement AB 1265 locally. Supervisors asked for more detailed fiscal scenarios showing the general-fund impact, distributional impacts on parcel owners, and timing constraints.

Next steps: County staff agreed to return with a more developed fiscal analysis and options for board consideration.