Corvallis, OR Solar Energy: Panel Permits (2026)

Property owners installing a solar collector in Corvallis who want assurance that a neighbor's trees or new construction will not block it can apply for a Solar Access Permit under LDC Chapter 2.18, administered by the Director in the Community Development Department. LDC § 2.18.30 limits what the permit can restrict: it cannot reach a lot more than 150 feet south of the collector, a lot on a 20-percent-or-steeper slope facing within 45 degrees of true north, any lot in the Commercial Mixed Use 3 (CMU-3) Zone, or any tree or structure that already existed on a neighboring lot when the application was accepted.

Under LDC § 2.18.40.03, an incomplete application triggers written notice from the Director within five days, and the applicant then has 10 days to submit the missing materials; affected owners within 100 feet get mailed notice and a 14-calendar-day comment period. LDC § 2.18.40.06 sets the review criteria: the collector must get at least four hours of unobstructed sun between 9 a.m. and 3 p.m. on November 21 each year, among other tests such as no reasonable alternative site and no shading from a six-foot fence on the applicant's own lot line.

A Type 2 Permit additionally requires proof that the zone's standard setbacks and height limits do not already protect the collector, and it can cap a neighbor's future building height through a recorded solar envelope. Approved permits are recorded with the Benton County Recorder, and any nonexempt vegetation that later grows into the protected sun path must be trimmed by its owner at that owner's expense.