Benton County, OR Home Business: Signage Rules (2026)
Key Facts
- Base rule
- no external business evidence except a compliant sign
- Sign cap, local road
- 4 sq ft
- Sign cap, collector road
- 6 sq ft
- Sign cap, arterial road
- 8 sq ft
- Whole-parcel cap
- 1.5 sq ft per linear ft of frontage
- Flashing/rotating signs
- prohibited
Summary
A home occupation in unincorporated Benton County can't display any external evidence of the business except a sign meeting BCC §§ 91.805-91.820. In residential zones, sign face area runs 4 to 8 square feet depending on the adjoining road, and the county caps every parcel's total sign area at 1.5 square feet per linear foot of road frontage.
(2)Not display any external evidence of an occupation outside the structure except as permitted for signs under BCC 91.805 through 91.820; ... (1)The number of signs allowed for each separate and identifiable use or establishment is not restricted by this section. ... (7)No parcel or lot shall contain a total sign face area which exceeds 1 ½ square feet for each linear foot of adjoining road frontage.
Full Breakdown
820. 810 sets the ceiling by the functional classification of the adjoining road. For uses permitted outright in Rural Residential, Urban Residential and Philomath Residential zones, the categories that cover home occupations, the cap is 4 square feet of sign face on a local road, 6 square feet on a collector, and 8 square feet on an arterial. 5 square feet for every linear foot of road frontage. 815 allows an exception above the size standard only through a conditional use permit approved by the Planning Official, and only if the larger sign still won't impair public safety.
820 layer on top for any sign at a home business: no rotating beacons or flashing lights, no sign that obscures safe sight distance, no encroachment into the road right-of-way without Board or State Highway Division authorization, and freestanding signs can't rise more than 25 feet or sit closer than 200 feet to another freestanding sign on the same road frontage.
Violations & Fines
An unpermitted or oversized home-business sign is enforced by Community Development and Code Compliance under Chapter 31: an escalating notice process runs from a verbal notice through a written notice to comply, and an uncorrected violation can draw an infraction complaint with a fine of up to $500, or up to $1,000 if the violation continues (BCC §§ 31.020, 31.125(3)).
Frequently Asked Questions
Can I put up any sign for my Benton County home business?
How big can my home business sign be?
Is there a total limit if I have more than one sign?
Sources & Official References
Other rules in Benton County
Compare Benton County to another location·View the Oregon home business overview
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