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Cowlitz County, WA Historic Preservation: Historic-Cultural Monuments (2026)

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

Key Facts

Governing section
CCC § 18.80.050, County Register of Historic Places
Minimum age
50 years old, or younger if exceptionally important
Consent required
Owner must consent in writing to listing
Administering body
Cowlitz County Historic Preservation Commission, 6 members
Alteration review
Certificate of appropriateness required, CCC § 18.80.060
Tax benefit
Up to 10-year special valuation once county is a CLG

Summary

Cowlitz County protects locally significant buildings, structures, sites, and objects through the Cowlitz County Register of Historic Places under CCC § 18.80.050. The Historic Preservation Commission lists a property that is at least 50 years old and meets one of eleven significance criteria, but only after the owner consents in writing to the nomination.

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

§ 18.80.050. Cowlitz County Register of Historic Places. A. ... Criteria for Determining Designation in the Register. Any building, structure, site, or object may be designated for inclusion in the Cowlitz County Register of Historic Places if it is significantly associated with the history, architecture, archaeology, engineering, or cultural heritage of the community; if it has integrity; is at least 50 years old, or is of lesser age and has exceptional importance; and if it falls in at least one of the following categories: 1. Is associated with events that have made a significant contribution to the broad patterns of national, state, or local history. ... Any person may nominate a building, structure, site, or object for inclusion in the Cowlitz County Register of Historic Places. The owner must consent to placement of the nominated resource in writing with the nomination prior to consideration for designation by the Commission.

Full Breakdown

040, maintains both a countywide Historic Inventory and the more protective Cowlitz County Register of Historic Places. 050(A), a building, structure, site, or object can be designated to the register if it is significantly associated with the community's history, architecture, archaeology, engineering, or cultural heritage; has integrity; is at least 50 years old, or is younger but exceptionally important; and meets at least one of eleven listed categories, from association with significant historical events to being the work of a notable designer or builder. Any person may nominate a property under subsection (B)(1), but the Commission cannot list it without the owner's written consent, and the nomination goes through a noticed public meeting that includes publication in a newspaper of general circulation.

Once listed, the property is recorded on county zoning and Comprehensive Plan records with an 'HR' designation and recorded with the County Auditor at the owner's expense. 060(A) requires a certificate of appropriateness from the Commission before anyone changes the use, builds, alters, remodels, or demolishes a register property, with exemptions only for work that needs no building permit, ordinary repair and maintenance, utility repairs, or emergency measures. Demolition instead requires a waiver of that certificate, following up to 45 days of negotiation over alternatives to demolition.

A Commission decision on a certificate or waiver can be appealed to the Cowlitz County Hearing Examiner within 10 days and, from there, to Superior Court. 070 once Cowlitz County becomes a certified local government.

Violations & Fines

Under CCC § 18.80.050(D)(2), doing work on a register property before obtaining a certificate of appropriateness is grounds for the Historic Preservation Commission to review the property for removal from the register, and the building or zoning official will not issue a permit until a certificate of appropriateness or waiver is received from the Commission. Because listing and review sit inside the land use title, unauthorized work can also be pursued as a land use civil infraction under CCC § 2.06.040 or a misdemeanor under the general penalty section, CCC § 1.01.090, punishable by a fine of up to $250, up to 90 days in county jail, or both.

Frequently Asked Questions

How does a property get listed on Cowlitz County's historic register?
Any person may nominate a building, structure, site, or object under CCC § 18.80.050(B)(1), but the owner must consent in writing before the Cowlitz County Historic Preservation Commission can consider the nomination. The Commission reviews the nomination at a noticed public meeting and checks it against eleven significance criteria in subsection A, including a 50-year minimum age unless the property has exceptional importance.
Can I remodel or demolish a listed historic property?
Only after review. CCC § 18.80.060(A) requires a certificate of appropriateness from the Historic Preservation Commission before changing, altering, or demolishing a register property, except for ordinary repair, maintenance, or emergency work. Demolition needs a waiver of that certificate, and the Commission's decision can be appealed to the County Hearing Examiner within 10 days.
What happens if I alter a listed property without approval?
Under CCC § 18.80.050(D)(2), doing work on a register property without first getting a certificate of appropriateness is grounds for the Commission to review the property for removal from the Cowlitz County Register of Historic Places, in addition to the building or zoning official withholding the permit until a certificate or waiver is issued.

Sources & Official References

Other rules in Cowlitz County

All Cowlitz County rules

Compare Cowlitz County to another location·View the Washington historic preservation overview

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