Denver's Sign Regulations: The Rules That Matter

Every city handles sign regulations a little differently. In Denver, Colorado, there are 6 distinct rules that residents and property owners should be aware of. Some are stricter than what neighboring cities enforce, and others are more relaxed. Here is what you need to know.

Window Signs

Temporary window signs in Denver can't exceed 60 percent of ground-level window area or 50 percent of the zone lot's permitted sign area, capped at 75 square feet, and must come down within 45 days.

Key details: Max coverage: 75 sq ft or 60% of window area. Duration limit: 45 days per sign or copy. Permit needed: None, unless exceeding limits. Illumination: Concealed source only, no flashing. Governing section: Denver Zoning Code § 10.10.3.1.F.

Violating the sign code is a general Code violation under DRMC § 1-13: up to a $999 fine, 300 days in jail, or both, with each day a separate offense; Community Planning and Development can also order removal.

Digital Billboards

Denver's zoning code bars new LED message surfaces on outdoor advertising billboards, grandfathering only devices with LEDs installed before March 1, 2010.

Key details: New LED billboard faces: Prohibited citywide. Grandfathered LED billboards: Only if permitted before 3-1-2010. Change frequency limit: No more than once per hour. Illumination curfew: Off 1:00 a.m.-6:00 a.m., dim at dusk. Animation: Prohibited on all billboards.

Building an unpermitted LED billboard face or operating one outside the grandfathered hours/change-rate limits is a zoning code violation subject to permit denial or revocation by the Zoning Administrator.

Compared to other cities, Denver takes a harder line on digital billboards. The enforcement and penalty structure reflects that.

Freeway-Facing Signs

Denver prohibits erecting or remodeling any billboard within 660 feet of a freeway right-of-way if its face is visible from the main-traveled way.

Key details: Buffer distance: 660 feet from freeway ROW. Where allowed: Only in UO-2 overlay district. Max height: 45 feet above grade. Permit required: Zoning Administrator permit.

Erecting or remodeling an unlawful freeway-visible billboard, or operating one without a zoning permit, is a code violation enforced by the Denver Zoning Administrator; unpermitted devices are subject to removal.

This is not one of those rules that cities tend to ignore. Denver actively enforces its freeway-facing signs requirements.

Holiday Displays

Denver exempts holiday decorations from outdoor advertising device permits, but only if displayed no more than 60 consecutive days and no more than 60 days total in any calendar year.

Key details: Display cap: 60 consecutive days maximum. Annual cap: 60 days total per calendar year. Permit: None required within the cap. Enforcement: Denver Zoning Administrator. Scope: Any type, size, or illumination allowed.

Denver Zoning Code § 10.10.21.2.B exempts holiday decorations from advertising-device permits only within the 60-day cap; a display left up longer becomes an unpermitted outdoor general advertising device, enforceable by the Zoning Administrator.

Political Signs

Denver treats political signs as noncommercial signs: no permit needed on residential lots, but they're capped at 15 square feet and can't be illuminated.

Key details: Permit required: No, for residential lots. Max size: 15 sq ft per sign. Ground sign height: 6 ft (25 ft if pole-mounted). Illumination: Prohibited. Flashing/animated: Prohibited.

Zoning Administrator enforcement for oversized, illuminated, flashing, or animated signs, or signs not in a permitted category (wall, window, ground); remedies run through the standard zoning-code enforcement and permit-review process rather than a listed fine.

If you are coming from a city with tighter rules, you will find Denver gives residents more flexibility on political signs.

Garage Sale Signs

Denver limits yard and garage sales to 72 hours, one per half-year, and requires all signs and other external evidence of the sale to come down immediately once it ends.

Key details: Max sale duration: 72 hours per sale. Frequency limit: One sale per half-year. Sign removal deadline: Immediately after sale ends. Resale items: No consignment or resale goods. Governing code: Denver Zoning Code § 11.8.11.

Community Planning and Development enforces the Zoning Code through zoning compliance review; leaving garage-sale signs up after the sale, exceeding 72 hours, or holding more than one sale per half-year violates Section 11.8.11.

The Bottom Line

Denver is tougher than many cities when it comes to sign regulations. Out of the 6 rules covered here, 2 are rated strict. If you are a homeowner, renter, or business owner in Denver, take the time to understand these requirements before they become a problem. Most violations come with fines, and some repeat violations can escalate.

These rules come from Denver's publicly available municipal code. For complete penalty schedules, exemption details, and answers to common questions, see the individual ordinance pages throughout this guide.