Accessory Structures in Gresham, OR (2026)
3 verified accessory structures rules for Gresham, Oregon, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Gresham allows one Accessory Dwelling per single detached dwelling, capped at 900 square feet or 75 percent of the primary home's floor area, whichever is smaller, under Development Code Section 10.0110.
Gresham Accessory Dwelling Unit Rules
Some RestrictionsGresham Community Development Code §§ 10.0101, 10.0110(F)
The purpose of this section is to allow for establishment of an Accessory Dwelling in conjunction with a single detached dwelling. An Accessory Dwelling may be permitted as a means of providing more housing opportunities... The Manager shall approve an application for not more than one Accessory Dwelling per existing primary single detached dwelling if the applicant shows compliance with the fo...
ADU Rental Restrictions
Gresham's Development Code flatly bars Accessory Dwellings from being used as short-term rentals, closing off a popular way homeowners elsewhere convert ADUs into vacation rental income.
Gresham ADU Short-Term Rental Ban
Heavy RestrictionsGresham Community Development Code § 10.0110(N)
N. Accessory Dwellings shall not be used as short-term rentals (see Gresham Revised Code Article 9.56).
Shed & Carport Rules
Gresham's Development Code sets sliding setbacks for backyard sheds and other detached accessory structures based on size, from 3 feet for small sheds up to full zoning-district setbacks for structures over 500 square feet.
Gresham Shed Setback Rules
Some RestrictionsGresham Community Development Code § 10.0203
C. No accessory structure shall be placed closer to the street than the farthest back front wall of the dwelling unit closest to that street. D. For accessory structures located within 5 feet of a side or rear property line, the structure shall be moveable. For example, it may be built on skids or on a concrete slab with embedded pull loops. E. More than one accessory structure may be placed ...
Looking for Multnomah County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Gresham city rules.
Accessory Structures in Multnomah County →