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

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Key Facts

Nomination trigger
Owner-initiated application only
Designation authority
Board of supervisors, by ordinance
Demolition notice period
90 days, extendable to 120
Review body
Historical advisory board (HAB)
Application completeness review
30 days

Summary

Placer County lets property owners nominate buildings, sites or districts to its Official Register of Cultural and Historic Resources. Once listed, no demolition permit can issue without 90 days' notice to the planning director, and the historical advisory board and board of supervisors review every application.

City-specific rules exist: Roseville has its own historic-cultural monuments rules that differ from Placer County's county-level regulations. If you live in Roseville, check the city-specific page instead.

The alteration, reconstruction, demolition, or destruction in whole or part, of a designated cultural resource or a site in a designated historic district is prohibited unless written permission is granted by the planning director or designee pursuant to this section. The property owner of such structure, or an authorized agent, must give the planning director 90 days prior written notice that such act is planned for such structure.

Full Breakdown

070. 080, and must find the resource retains sufficient integrity of location, design, setting, materials, workmanship, feeling and association. 090(D). 110(A), acting by ordinance. 150 bars issuance of any construction or demolition permit on the resource, its site, or within a designated historic district unless it follows the demolition-review procedure. 180 requires the property owner to give the planning director 90 days' prior written notice of any planned alteration, reconstruction, demolition or destruction, extendable to 120 days for good cause; during that window the county pushes owners to seek land trusts or other buyers willing to fund restoration before it will consider a permit. 160, and county officials evaluating a substandard historic structure have 30 days to submit an advisory report once notified.

Violations & Fines

Demolishing, reconstructing, altering or destroying a designated cultural resource or a site in a designated historic district without written permission from the planning director is prohibited under Section 15.60.180(A). No permit application is deemed complete until the 90-day notice period has run, and the planning director may deny a demolition permit outright or require the owner to pursue preservation alternatives such as sale to a land trust.

Frequently Asked Questions

Can Placer County designate my property as historic without my consent?
No. Section 15.60.070 requires the property owner, or an authorized representative, to initiate the designation process; for a historic district, a simple majority of the affected owners must apply. The county does not impose the designation unilaterally.
How much notice do I need to give before demolishing a designated historic building?
Section 15.60.180(A) requires 90 days' prior written notice to the planning director before any alteration, reconstruction, demolition or destruction, and no demolition permit application is complete until that notice period runs. The planning director can extend it to 120 days for good cause.
Who actually decides whether a resource joins the official register?
The historical advisory board and planning commission review the application and make recommendations, but Section 15.60.110(A) vests the sole authority to designate a resource in the board of supervisors, which acts by ordinance after a public hearing.

Sources & Official References

Other rules in Placer County

All Placer County rules

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

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