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File #: 25-5367    Version: 1 Name:
Type: Consent Item Status: Agenda Ready
File created: 11/29/2025 In control: BOARD OF SUPERVISORS
On agenda: 12/16/2025 Final action:
Title: APPROVE and AUTHORIZE the Chair of the Board of Supervisors to execute a Historical Preservation Agreement (Mills Act Contract) for 1850 Alameda Diablo in the Diablo area, as recommended by the Conservation and Development Director. (100% General Fund))
Attachments: 1. Historical Property Preservation Agreement (Mills Act Contract) for 1850 Alameda Diablo, Diablo, 2. Historical Resources Evaluation for 1850 Alameda Diablo, Diablo
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To: Board of Supervisors
From: John Kopchik, Director, Conservation and Development
Report Title: APPROVE and AUTHORIZE the Chair of the Board of Supervisors to execute a Historical Preservation Agreement (Mills Act Contract) for 1850 Alameda Diablo in the Diablo area.
?Recommendation of the County Administrator ? Recommendation of Board Committee


RECOMMENDATIONS:

APPROVE and AUTHORIZE the Chair to execute a Mills Act Contract for 1850 Alameda Diablo, Diablo.

DIRECT the Department of Conservation and Development to record the Mills Act Contract with the County Clerk-Recorder, and to forward copies to the California Office of Historic Preservation and the County Assessor.

DETERMINE the proposed action is categorically exempt from the California Environmental Quality Act (CEQA Regs, Section 15331, Class 31).

DIRECT the Department of Conservation and Development to file a Notice of Exemption under CEQA with the County Clerk-Recorder.

FISCAL IMPACT:

The applicant is responsible for application and processing costs for the preparation of the Mills Act Contract. Approval of the Mills Act Contract for 1850 Alameda Diablo will result in a reduction of property taxes for the subject property based on the calculations used by the State Board of Equalization for use of assessing properties under the Mills Act.

BACKGROUND:

Mills Act Contract: The Mills Act Program (Government Code, Sections 50280-50290) is a state law that grants participating local governments authority to enter into contracts with owners of qualified historic properties who actively participate in the restoration, rehabilitation, and maintenance of their historic properties while receiving property tax relief. The law enables the County to enter into 10-year agreements with owners of historic properties, which are automatically renewed each year for an additional year, unless the County or owner files a notice of non-renewal. The Mills Act Program can be utilized with historic properties list...

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