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Mendocino County, CA Historic Preservation: Historic-Cultural Monuments (2026)

Significant Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

District review body
5-member Historical Review Board
Board member term
3 years, max 2 consecutive terms
Hearing deadline
Within 50 days of complete application
Appeal window
11 days before decision is final
Approval expires
2 years without continuous progress
Street vending fine
Up to $50, enforced by Sheriff

Summary

The unincorporated Town of Mendocino sits inside a county-designated Historical Preservation District where a five-member Review Board must approve exterior work, demolition, signage, and even fences before a building or demolition permit can issue.

These county ordinances apply to unincorporated areas of Mendocino County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

In addition to the use regulations provided in this division there is hereby established the Mendocino Historical Preservation District which shall be an overlay district applying to the following unincorporated areas of the Town of Mendocino... None of the following activities shall be commenced or continued within Historic Zone A, nor shall any building, demolition or any other permit necessary for such work, be issued without prior approval of the Review Board except as specifically provided in Section 20.760.040.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 75).

Full Breakdown

Sec. 010 establishes the Mendocino Historical Preservation District as an overlay covering the town's core, split by Sec. 015 into Historical Zone A (west of Highway 1) and Zone B (east of it). A five-member Historical Review Board, appointed by the Board of Supervisors to staggered three-year terms under Sec. 020, reviews applications. Sec. 030 requires Review Board approval in Zone A before any construction, demolition, exterior alteration, fence, driveway, sign, exterior painting, outdoor lighting, dumpster placement, or landscaping over six feet can proceed; Sec.

035 extends the same approval requirement into Zone B for anything visible from Zone A. Limited exemptions exist under Sec. 040 for small tool sheds, routine maintenance matching existing materials, and minor decks and fences. Applications go through Planning and Building Services under Sec. 055, with a public hearing before the Review Board within 50 days of a complete application (Sec. 060); a decision becomes final 11 days after issuance unless appealed to the Board of Supervisors under Sec. 072, and any approval expires after two years without continuous progress under Sec. 075.

Violations & Fines

Sec. 20.760.090 routes penalties through Chapter 20.736: violations are punishable as infractions under Government Code Sec. 25132 and by civil fines under Public Resources Code Sec. 30820, with a separate offense for each day a violation continues after the first citation (Sec. 20.736.010). The County can record a lien against the property for permit costs and penalties, seek injunctive relief to stop or undo unpermitted work, and require restoration of a structure to its pre-violation appearance. Street vending inside the district is a separate infraction under Sec. 20.760.095, punishable by a fine up to $50 and enforced directly by the Mendocino County Sheriff.

Frequently Asked Questions

Do I need approval to repaint or fence my house in the Mendocino Historical Preservation District?
Yes, in Historical Zone A. Sec. 20.760.030 requires Review Board approval before any exterior painting, fence, driveway, or landscaping change over six feet, with only narrow exemptions in Sec. 20.760.040 for things like routine matching-material maintenance.
How long does Review Board approval last once granted?
Two years. Sec. 20.760.075 voids an MHRB approval if the project has not made continuous progress toward completion within two years of the grant, unless the approval has already vested.
What happens if work is done without Review Board approval?
It is enforced under Chapter 20.736: the County can cite the violation as an infraction with civil fines under Public Resources Code Sec. 30820, record a lien for costs and penalties, and go to court for an injunction requiring the work to be undone or the structure restored.

Sources & Official References

Other rules in Mendocino County

All Mendocino County rules

California rules heatmap·Compare Mendocino County to another location·View the California historic preservation overview

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