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Portland, OR Solar Energy: Panel Permits (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Key Facts

Flat roof height allowance
Up to 5 feet above roofline
Pitched roof mounting
Within 12 inches of roof surface
Pitched roof setback
3 feet from edge and ridgeline
Ground-mounted panel cap
8 feet, accessory structures
Governing code
Title 33, Chapter 33.218

Summary

Portland's zoning code sets height, mounting, and street-screening rules for rooftop solar panels on houses in single-dwelling zones, letting installers exceed normal roof height limits if the panels meet specific setback standards.

N. Rooftop solar energy systems. 1. Rooftop solar energy systems must meet the following requirements: a. On a flat roof. The solar energy system must be mounted flush or on racks, with the system or rack extending no more than 5 feet above the top of the highest point of the roof, not including the parapet... b. On a pitched roof. The plane of the system must be parallel with the roof surface, with the system no more than 12 inches from the surface of the roof at any point, and set back 3 feet from the roof edge and ridgeline.

Source: Portland BDS — Solar Electric SystemsView official code

Full Breakdown

Portland City Code § 33.218.100.N lets rooftop solar panels on houses in single-dwelling zones exceed the normal roof height limit, but only if they meet mounting rules: on a flat roof, panels can rise up to 5 feet above the roofline if screened from the street by an existing parapet or a 4-foot setback per foot of height; on a pitched roof, panels must sit within 12 inches of the roof surface and be set back 3 feet from the edge and ridgeline. Ground-mounted panels on accessory buildings face a separate 8-foot cap under § 33.218.120.H, checked during the standard building and electrical permit review.

Violations & Fines

Panels that exceed the flat-roof or pitched-roof height and setback limits, or skip the required street-facing screening, fail zoning review and can be ordered relocated, re-mounted, or removed by the city.

Frequently Asked Questions

Do I need a permit to install solar panels in Portland?
Yes, standard building and electrical permits from the Bureau of Development Services are required, plus compliance with the zoning height, mounting, and setback standards in City Code Section 33.218.100.N.
Can rooftop solar panels exceed Portland's roof height limit?
Yes. On a flat roof, panels may rise up to 5 feet above the roofline if screened from the street; on a pitched roof, they must stay within 12 inches of the roof surface.
What are the rules for ground-mounted solar panels?
Ground-mounted panels on a detached accessory structure are capped at 8 feet tall and cannot sit closer to the street than the primary structure's street-facing wall, under City Code Section 33.218.120.H.

Sources & Official References

Other rules in Portland

Parking Rules: Towing & Impound RightsSignificant RestrictionsParking Rules: Loading ZonesSome RestrictionsParking Rules: Preferential Parking DistrictsSome RestrictionsParking Rules: Curb Color RulesSome RestrictionsFence Regulations: Fence Permit RequirementsSome RestrictionsAnimal Ordinances: Veterinary Clinic ZoningSome Restrictions

All Portland rules

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