Hillsboro, OR Home Business: Signage Rules (2026)
Key Facts
- Max signs per property
- 5, permanent+temporary combined
- Largest sign size
- 6 sq ft, 6 ft tall
- Additional signs
- 6 sq ft, 4 ft tall max
- Extra street frontage
- +1 sign allowed
- Governing code
- Hillsboro MC § 11.32.080(B)(2)
Summary
A home business sign in Hillsboro is capped by the residential sign rules: 5 signs total per property, with one up to 6 square feet facing each street frontage, and smaller additional signs.
On property containing either a single-family residence or a residential duplex, indirectly illuminated or non-illuminated signs that comply with all of the following: a. The total maximum number...is 5... b. Maximum size. i. One sign with a maximum sign area of 6 square feet and sign height of 6 feet displayed on each public street frontage bordering the property.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Municipal Code: Supplement 1 | Community Development Code: Supplement 1).
Full Breakdown
CDC § 12.40.170.E.1 bars home occupations from displaying evidence of business operations visible from the street or neighboring homes, except for signage permitted under HMC Chapter 11.32, the sign code. For a single-family residence, HMC § 11.32.080(B)(2) caps total signs, permanent, temporary, and portable combined, at 5 per property, plus 1 more per extra street frontage, with one sign up to 6 square feet and 6 feet tall per frontage and any additional signs capped at 6 square feet and 4 feet tall.
Violations & Fines
Posting a home business sign that exceeds the 5-sign count or the 6-square-foot/6-foot size cap, or that isn't placed within HMC § 11.32.080(B)(2)'s placement rules, is a sign code violation subject to removal under HMC 11.32.330.
Frequently Asked Questions
How big can a home business sign be in Hillsboro?
Does a Hillsboro home occupation need a sign permit?
Sources & Official References
Other rules in Hillsboro
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How other cities in Washington County handle signage rules.