Building Setbacks & Zoning in Benton County, OR (2026)
3 rules for unincorporated Benton County, Oregon.
Verified from official government sources
Setback Rules
In the Rural Residential zone of unincorporated Benton County, BCC § 63.405 sets minimum yard setbacks: 25 feet from a road right-of-way (40 feet from the roadway edge), 8 feet on the side (30 feet if a structure already exists next door), and 25 feet at the rear, enforced by Community Development.
Rural Residential Setback Rules in Benton County
Some RestrictionsBenton County Code § 63.405(1)-(3)
63.405 - Siting Standards. All structures allowed in the Rural Residential Zone shall be sited in compliance with BCC Chapter 99 and the following additional standards: ... (1)A setback to a road right-of-way shall be at least 25 feet and at least 40 feet from the edge of an existing roadway.(2)A side setback shall be at least 8 feet. If structures exist on an adjoining property, a minimum 30-f...
Structure Height Limits
In the Rural Residential zone of unincorporated Benton County, BCC § 63.405(10) caps structures at 40 feet in height. Chimneys, spires, domes, towers, flagpoles and similar features not used for human occupancy are exempt from that limit, and the same 40-foot cap applies across most other residential and commercial zones.
Rural Residential Building Height Limit, Benton County
Some RestrictionsBenton County Code § 63.405(10)
63.405 - Siting Standards. All structures allowed in the Rural Residential Zone shall be sited in compliance with BCC Chapter 99 and the following additional standards: ... (10)A structure shall not exceed 40 feet in height. Structures such as chimneys, spires, domes, elevator shaft housings, towers, aerials, flagpoles, agricultural buildings, and other similar objects not used for human occupa...
Lot Coverage Limits
In unincorporated Benton County's Philomath General Commercial zone, BCC § 69.030(2) allows full lot coverage, no percentage cap, as long as the required setbacks and off-street parking are met, though a 4-foot side or rear setback applies where the lot abuts a residential zone.
Commercial Lot Coverage Limit in Benton County
Few RestrictionsBenton County Code § 69.030(1)-(2)
69.030 - Siting Standards. All structures allowed in the Philomath General Commercial Zone shall be sited in compliance with BCC Chapter 99 and the following additional standards: ... (1)There are no front, rear, or side setbacks, except a 4-foot rear or side setback if abutting a residential zone.(2)Full lot coverage is permitted if setback and parking requirements are met.
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