Harris County, TX Sign Regulations: Window Signs (2026)
Key Facts
- Base rule
- Permit required for toll-road-visible signs
- Window sign exemption size
- Under 40 sq ft
- Issuing authority
- Harris County Engineer
- Legal authority
- Tex. Transportation Code Ch. 395
- Visibility presumption
- Within 660 ft of pavement
Summary
Along a Harris County toll road, most signs visible from the main-traveled way need a written permit from the County Engineer. Ch. 41, Subchapter 41F, Sec 5 carves out an exception for signs painted on glass, windows, or doors, as long as the sign stays under 40 square feet.
No person shall hereafter erect, construct, reconstruct, alter, maintain or use a sign visible from the main-traveled way of a County toll road for the purpose of having the message seen from the main-traveled way of the County toll road without first having secured a written permit from the County Engineer. ... No permit shall be required under these Regulations for the following on-premise signs. signs painted on glass surfaces or windows or doors less than 40 square feet in size;
Full Breakdown
Harris County's toll-road sign rules, adopted under Texas Transportation Code Chapter 395 by Commissioners Court acting as the Harris County Toll Road Authority, start from a blanket permit requirement: no one may erect, construct, reconstruct, alter, maintain, or use a sign visible from the main-traveled way of a county toll road, for the purpose of having its message seen from that road, without first getting a written permit from the County Engineer. Ch. 41, Subchapter 41F, Sec 5 then lists on-premise signs that skip the permit step entirely.
Among them: signs painted directly on glass surfaces, windows, or doors, provided the sign is under 40 square feet in size. That sits alongside other narrow exemptions the same subsection lists, including signs under 40 square feet marking a building under construction or for sale, temporary signs limited to one per frontage road for up to seven days in any 30-day stretch and no larger than 30 square feet, and directional or parking signs capped at 10 square feet. The exemption only removes the permit paperwork; the sign still has to comply with the rest of Subchapter 41F's construction, height, and placement rules under Sections 10 through 12, and it loses the exemption altogether if it is a spectacular sign with moving or flashing elements or a portable sign.
The 660-foot rule in Sec 2 presumes any sign within that distance of a toll road's pavement edge is 'visible' and covered by these Regulations.
Violations & Fines
Putting up a window or glass sign over 40 square feet, or one that otherwise fails to qualify for an exemption, without first getting a County Engineer permit violates Sec 5. Sec 13 makes any violation of these Regulations an offense subject to the penalties listed there, and the County Engineer can issue a stop-work order and ask the County Attorney to pursue an injunction to force compliance.
Frequently Asked Questions
Do I need a county permit for a sign painted on my storefront window?
What if my window sign is bigger than 40 square feet?
Does this exemption apply anywhere in Harris County?
Sources & Official References
Other rules in Harris County
Texas rules heatmap·Compare Harris County to another location·View the Texas sign regulations overview
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