Sites for marijuana production limited to one per tract in Clackamas County beginning March 1


A new zoning ordinance going into effect in Clackamas County on March 1 limits the number of marijuana production premises permitted on a tract of land in three specific zoning districts.

The ordinance, ZDO-271, permits only one State-authorized marijuana production site on a tract of land (one or more contiguous lots of record under the same ownership) in the Ag/Forest (AG/F), Exclusive Farm Use (EFU) or Timber (TBR) zoning districts. That means the tract of land is limited to one of two production sites:

  • Only one premises licensed for recreational marijuana production by the Oregon Liquor Control Commission (OLCC) or
  • Only one medical marijuana grow site registered by the Oregon Health Authority (OHA).

The amendments are available online at  

Multiple OLCC-licensed production premises and/or OHA-registered grow sites already located on a single tract may be considered a “legal nonconforming” use (sometimes referred to as “grandfathered”), but that determination will be made on a case-by-case basis through the review of a land use application  

Owners or licensees of such sites are encouraged to contact the county to discuss the details. Questions should be directed to Glen Hamburg at or 503-742-4523. 

Contact: Glen Hamburg, Planning & Zoning Division
Phone: 503-742-4523

Contact: Ellen Rogalin, Public & Government Affairs
Phone: 503-742-4274