Chelan County, WA Right to Farm: Agricultural Zoning Protection (2026)
Key Facts
- Minimum lot size
- Ten acres
- Max building height
- Thirty-five feet
- Max lot coverage
- Thirty-five percent of lot
- Agricultural setback
- One hundred feet from AC land
- Setback waiver
- Notarized, recorded with county auditor
- Governing section
- Chelan County Code § 11.30.020
Summary
Unincorporated Chelan County zones its working farmland as Commercial Agricultural Lands (AC) under Chelan County Code § 11.30.020, which sets a ten-acre minimum lot size, a thirty-five-foot height cap, and a mandatory one-hundred-foot setback keeping new houses away from neighboring AC-zoned cropland and orchards.
All development in this zone shall meet the applicable provisions of the Chelan County Code, including without limitation the following: ... (1) Minimum lot size: ten acres, which measures to the centerline of adjoining public rights-of-way, which may be modified one time for: ... (6) Setbacks from Agriculture. No new dwelling unit shall be placed within one hundred feet of a property zoned as commercial agricultural lands (AC).
Full Breakdown
04 district use chart. 030, or the one-time lot-size reduction for an existing dwelling described later in the same section. 170 allows more, and lot coverage cannot exceed thirty-five percent. Front yards run twenty-five feet from the property line or fifty-five feet from the street centerline, whichever is greater; rear yards are twenty feet; side yards are ten feet, widening to twenty-five feet on a corner lot's street side. Subsection (6) adds the agricultural buffer: no new dwelling may be placed within one hundred feet of AC-zoned land.
The administrator can shave that buffer by up to twenty percent for lots legally created before September 9, 1997, and neighbors can waive it entirely with a notarized agreement recorded at the county auditor's office, which then binds future enlargements or additional dwellings to a fresh waiver. Plats, short plats, and building permits within five hundred feet of designated agricultural, forest or mineral land must carry a recorded notice warning buyers that nearby commercial farming may bring noise, dust or spraying at certain times of year.
Violations & Fines
Community Development checks minimum lot size, setbacks and the agricultural buffer at plat and building permit review, and a proposal that crowds a dwelling inside the one-hundred-foot AC buffer without a recorded waiver or an administrator-approved modification will be denied. Once built, encroachments are handled through Chelan County's standard code enforcement and Title 16 violation process, which can require the structure be relocated or the owner obtain the missing recorded waiver from the adjoining agricultural owner before the county will clear the file.
Frequently Asked Questions
How big does a lot have to be in Chelan County's AC zone?
How close can a new house be built to farmland in unincorporated Chelan County?
What is the maximum building height in the AC zone?
Sources & Official References
Other rules in Chelan County
Compare Chelan County to another location·View the Washington right to farm overview
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