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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

More Contact Info

Site Development/Septic Permits

Site Development Permits

Site Development permits are issued for work related to grading and clearing, tree cutting, landslide repair and subdivision development.

Fact Sheets

Information on different methods of stormwater management and erosion control including links to the stormwater manual and erosion control manual.