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The City of Portland, Oregon

Portland, Oregon

Welcome to the official web site of the City of Portland, Oregon

General Information: 503-823-4000


1221 SW 4th Avenue, Room 110, Portland, OR 97204

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Documents and resources

Project documents and supporting materials for the Environmental Overlay Zone Map Correction Project.

Ezone Map Correction Project – Existing Conditions Report

The Existing Conditions Report provides an overview of natural resources in Portland and a summary of the plans that adopted the environmental overlay zones

Ezone map guide

Steps to use the ezone map

What are ezones?

Explanation of environmental overlay zones

Environmental plans

Adopted natural resources protection plans.