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

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

Key Facts

Governing chapter
LCC Chapter 15.35, Flood Damage Prevention
Historic exemption
Register-listed structures excluded from substantial-improvement trigger
Variance authority
Administrator under LCC § 15.35.170(5)(a)
Daily penalty
Up to $1,000 per day per violation
Landmark parking standard
3 spaces plus 1 per acre, § 17.145.040
No local landmark commission
County has no separate preservation ordinance

Summary

Unincorporated Lewis County has no separate historic landmark or cultural-monument ordinance. Its only textual protection for register-listed structures sits inside the floodplain code: alterations to buildings on the National Register of Historic Places or the State Inventory of Historic Places are excluded from the 50 percent "substantial improvement" trigger and can receive a streamlined variance from the county's flood-elevation standards without jeopardizing the listing.

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

(b) Any alteration of a structure listed on the National Register of Historic Places or a State Inventory of Historic Places. ... Variance ... s may be issued for the reconstruction, rehabilitation, or restoration of structures listed on the National Register of Historic Places or the State Inventory of Historic Places without regard to the procedures set forth in this section; provided, that the issuance of the variances will not preclude the structure's listing as a historical structure. ... A notice of violation and order for penalty may be issued by the administrator or designee pursuant to LCC § 1.20.040, except that the cumulative penalty may total up to $1,000 per day for each violation assessed against the person(s) to whom the notice and order to correct the violation is directed.

Full Breakdown

35 LCC, is the only place in the code that gives register-listed buildings different treatment than ordinary structures in the unincorporated area; the county has never adopted a landmark commission, a certificate-of-appropriateness process, or a demolition-review ordinance. 040 LCC, excludes any alteration of a structure listed on the National Register of Historic Places or a State Inventory of Historic Places from the 50-percent-of-market-value threshold that otherwise turns a repair into a "substantial improvement" requiring full compliance with the chapter's elevation standards. 170(5)(a) LCC: the administrator may grant a variance for reconstruction, rehabilitation or restoration without regard to the standard variance procedures, provided the work will not cost the building its register listing.

170(3) LCC, covering flood danger, hardship and public cost. 120 LCC, with appeal available to the Lewis County hearing examiner. 040 LCC: three spaces plus one additional space per acre of land, a lighter ratio than most institutional uses in the same table. 170 variance before starting demolition or structural alteration.

Violations & Fines

Violating Chapter 15.35 LCC, including undertaking substantial improvements without the required elevation compliance or variance, is a civil infraction under § 15.35.180 LCC. The administrator can issue a notice of violation carrying a cumulative penalty of up to $1,000 per day for each violation until it is corrected. Penalties imposed jointly with the state under WAC 173-158-090 may be appealed to the Washington Pollution Control Hearings Board rather than through the county hearing examiner.

Frequently Asked Questions

Does unincorporated Lewis County have a historic landmark designation process?
No. The Lewis County Code does not create a landmark commission, register, or certificate-of-appropriateness review for cultural monuments. The only place a National Register or State Inventory listing changes the rules is Chapter 15.35 LCC, the flood damage prevention chapter, where listed buildings get relief from the substantial-improvement threshold and an easier variance path for rehabilitation work.
Can I remodel a National Register-listed building without triggering flood elevation requirements?
Alterations to a structure on the National Register of Historic Places or the State Inventory of Historic Places are excluded from the definition of "substantial improvement" in § 15.35.040 LCC, so they do not automatically trigger the chapter's elevation-compliance rules that apply once repair costs reach half the building's market value.
Who decides a variance for a historic structure in the floodplain?
The county's flood-plain administrator, designated under § 15.35.120 LCC, hears and decides variance requests. Under § 15.35.170(5)(a) LCC, rehabilitation of a National Register or State Inventory building can be approved without the standard multi-factor review, as long as the work will not cause the structure to lose its historic listing.
What happens if I violate the flood damage prevention chapter while working on a historic building?
The administrator can issue a notice of violation under § 15.35.180 LCC, and the county may assess a cumulative civil penalty of up to $1,000 per day the violation continues. Penalties imposed jointly with the Washington Department of Ecology are appealable to the state Pollution Control Hearings Board.

Sources & Official References

Other rules in Lewis County

All Lewis County rules

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