Corvallis, OR Accessory Structures: Shed & Carport Rules (2026)

Corvallis treats sheds as Accessory Structures under Land Development Code Section 4.3.40, which lists Sheds by name alongside private garages, children's playhouses, shops, barns, kennels, gazebos, and solar or wind energy systems as Accessory Structures permitted in every zone where Residential Use Types are allowed. A shed must not include a bedroom or sleeping room, unless it qualifies as a detached Accessory Dwelling Unit built to the ADU standards in Section 4.9.40, and it must be detached from the primary residence; decks are the only Accessory Structure exempted from that detachment rule.

Section 4.3.30 sets the numeric limits that apply to a shed once its use is confirmed: an Accessory Structure cannot exceed 14 feet in height nor occupy more than 35 percent of a required yard, and in a residential zone its side and/or rear yard setback can shrink to three feet if the shed sits behind the front facade of the house, provided vision clearance is maintained. Where a yard structure is instead an arbor, pergola, or trellis integrated into fencing rather than a standard shed, a separate 10-foot height allowance and 50-percent-open standard applies under Section 4.3.30(e)(3).

The Director classifies any Accessory Structure not named in Section 4.3.40, such as an unusual outbuilding, under the procedures in Section 4.3.20 and Chapter 2.16 - Request for Interpretation.