Lane County, OR Cannabis Regulations: Buffer Zones (2026)

420(4)(a) sets two distinct setbacks. Outdoor marijuana production must sit at least 100 feet from any exterior property line. A structure used for indoor marijuana production or processing must be set back the larger of two numbers: 30 feet from a property line, or 100 feet from an existing dwelling that is not on the same property as the marijuana use, whichever distance is greater. 420(4)(b) requires every production or processing building, including greenhouses and hoop houses, to run an activated charcoal or carbon filtration or equivalent ventilation system, with a design stamped by an Oregon-licensed mechanical engineer and fans sized to the building's cubic footage divided by three.

Subsection (4)(b)(vii) then adds the long-range buffer: the exterior exhaust vent opening must be sited to maximize distance from any off-site dwelling located within 1,000 feet of the vent, and must be oriented at least 45 degrees away from any such dwelling. An alternative ventilation system is allowed only if an engineer's stamped submittal shows it filters air as well as or better than the required carbon system. 420(4)(c): grow lights inside a building or greenhouse must be shielded from surrounding property from sunset to sunrise, and outdoor marijuana grow lights may not be illuminated at all during those hours.

None of these standards reference schools or parks; Oregon's separate OLCC licensing process, not the Lane Code, is what runs any state-level proximity screening for those uses.