Pierce County, WA Landscaping Rules: Composting (2026)

Pierce County neither prohibits nor permit-requires home composting of yard and food waste on residential property; the county and Health Department encourage backyard composting as waste reduction. The limit is the public-nuisance standard: under PCC Chapter 8.08, a compost pile that generates offensive odors, harbors pests, or unreasonably affects a neighbor's comfort, health, or safety can be declared a public nuisance and abated. PCC 8.08.050.F also treats improperly handled solid waste as a nuisance except where securely stored, so tidy backyard bins are fine while an unmanaged rotting heap is not. Commercial or large-scale composting requires a solid-waste facility permit; operating it without permits is itself a declared nuisance. Keep piles managed and set back from property lines.