Grant County, WA Cannabis Regulations: Dispensary Zoning (2026)

245, Marijuana Production, Processing and Retail, sets the countywide zoning rules for state-licensed cannabis businesses in the unincorporated area. 140. No marijuana producer, processor, or retailer can operate inside a dwelling unit or a building physically attached to one. Indoor operations, including retail sales, must sit within an entirely enclosed building or rigid greenhouse; outdoor production is allowed only in the Agriculture, Rural Remote, and Urban Heavy Industrial districts, and even there it must sit at least 500 yards from any urban growth area boundary, off-site residence, residential zoning district, shoreline development district, the Rural Community district, the Recreational Development district, or the parks referenced in the section, plus at least 100 feet from any property line (the 500-yard and 100-foot buffers do not apply in Urban Heavy Industrial).

Every production, processing, and retail operation, wherever it is sited, must also stay at least 1,000 feet from any parcel containing a public park owned by a city, county, special district, or state or federal agency, measured property line to property line. Security and operational lighting cannot cross a property line, indoor facilities are capped at 10 percent building and roof fenestration outside Urban Heavy Industrial, and applicants must document a legal water source. Operations lawfully running before March 7, 2017 may continue under their existing approvals, but any expansion has to meet current UDC standards, and a state Liquor and Cannabis Board license alone does not exempt an operator from county Site Plan Review.