Westminster, CO Sign Regulations: Window Signs (2026)
Key Facts
- Governing section
- WMC § 11-11-10(E), Table 11-11-10-5
- Coverage limit
- 30% of window glass per frame
- Permit required
- No
- Digital window signs
- Not permitted, any category
- Exterior placement
- Not permitted; interior only
Summary
Westminster lets any property post window signs without a permit, but caps the total sign area at 30 percent of the glass in a window's mullion-and-transom frame. Anything mounted outside or within three feet of the glass on the outside doesn't count as a window sign at all.
(E)Window Signs: A "window sign" is a sign posted, painted, placed, or affixed to the inside of a window and inside a building, but clearly visible from outside the building. Signs placed on the exterior of a window are not permitted. This includes any sign that is mounted within three (3) feet of a window and oriented to the window in a manner that is visible from the outside of the building or wraps or film that reduce the transparency of the window. ... 5 Sign area (max. % of glass within a Mullion and Transom, or the Frame if the Window is not divided into separate Lights) 30% ... 2 Permit required? No ... 9 Digital No
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 12).
Full Breakdown
" The definition reaches further than glass alone: it includes any sign mounted within three feet of a window and oriented so it is visible from outside, and any wrap or film that reduces the window's transparency, though a curtain wall or window wall is not treated as a window for this purpose. Table 11-11-10-5, Standards for Window Signs, applies identically across every land use category in the city (Residential Low and Medium Intensity, Office/Transition, Commercial, Mixed Use, Employment, and Industrial Flex): window signs are permitted outright, no sign permit is required, and there is no cap on the number of window signs per building or per street frontage.
" The table also bars digital window signs outright across every category, while internal illumination is allowed only in the Office/Transition, Commercial, Mixed Use, Employment and Industrial Flex categories, not in the two residential categories. Because window signs are exempt from the Chapter's sign-permit process under § 11-11-6, a business can change window signage without City review as long as it stays under the 30 percent coverage cap and does not use prohibited digital displays.
Violations & Fines
Exceeding the 30-percent glass-coverage cap, mounting a sign on the exterior of the window instead of the interior, or using a digital display in a window sign violates § 11-11-10(E) and Table 11-11-10-5; the Building Official or Planning Manager may order the sign removed as an illegal or nonconforming sign under § 11-11-6(B).
Frequently Asked Questions
Do I need a permit for window signs in Westminster?
How much of my storefront window can I cover with signs?
Can I put a digital sign in my window?
Sources & Official References
Other rules in Westminster
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