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Planning and Sustainability

Innovation. Collaboration. Practical Solutions.

Phone: 503-823-7700

Curbside Hotline: 503-823-7202

1900 SW 4th Ave, Suite 7100, Portland, OR 97201

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400s Overlay Zones

Overlay zones consist of regulations that address specific subjects that may be applicable in a variety of areas in the City. Plan districts consist of regulations that have been tailored to a specific area of the City. Both overlay zones and plan districts are applied in conjunction with a base zone and modify the regulations of the base zone. The Official Zoning Maps identify overlay zones and plan districts as well as the base zones and other information.