Zoning Overlays & Bonuses in Lewis County, WA (2026)
1 rule for unincorporated Lewis County, Washington.
Verified from official government sources
Note: These county rules apply to unincorporated areas of Lewis County. If you live within an incorporated city, that city's own rules apply: see the city list below.
Density Bonus Law
Residential developments in Lewis County's Packwood and Onalaska Small Town Urban Growth Areas earn a density bonus when 30 percent of the units are long-term rentals priced at or below 80 percent of area median income, unlocking either a 25 percent boost in dwelling units or a 30 percent boost in commercial square footage.
Lewis County Small-Town UGA Density Bonus
Some RestrictionsLewis County Code § 17.17.210
Development that includes residential uses where 30 percent of the dwelling units are long-term units provided at or below 80 percent area median income for Lewis County shall be eligible for one of either an increased commercial or residential density bonus. (1) A 25 percent increase in the total number of residential dwelling units, rounded down to the nearest whole number. ... (2) A 30 perce...
All Lewis County ordinances
See every category we cover for Lewis County: parking, noise, fences, fires, animals, pools, and more.
Lewis County Ordinance Hub →