Portland Deck Permit Guide

Portland deck permits are driven by walking-surface height, zoning, overlays, and inspection requirements.

Permit takeaway

Portland says decks and porches with walking surfaces more than 30 inches above adjacent grade need a building permit and inspection.

Zoning and placement

Decks and patios not more than 30 inches above grade may not need a building permit, but zoning requirements still apply.

Building and trade review

Portland's deck process includes application submittal, review, inspection cards, and final approval.

Call before applying when

Call before applying if the deck is above 30 inches, covered, in an overlay zone, near a property line, or part of a larger outdoor project.

Documents to prepare

• Deck permit application
• Site plan
• Deck framing details
• Height above grade
• Inspection card after approval

Inspection planning

• Footing or structural inspections if listed
• Use IVR or permit number to schedule
• Final approval inspection

Official sources

• Portland Residential Decks
• Portland Brochure 3
• Portland Outside Work Permits

This guide is a planning summary. Always verify the current requirements with the local office before starting work.