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Gaithersburg, MD Sign Regulations: Digital Billboards (2026)

Significant Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Billboards
Prohibited outright, § 24-8.3(E)
RB zone / single-family lots
Electronic displays not permitted at all
Non-residential/floating zone count
1 per 10 acres (1 per 15 in CB)
Brightness, daytime
5,000 nits maximum
Brightness, dusk to dawn
500 nits maximum
Highway setback
300 feet from controlled-access highway
Adopted
Ord. No. O-5-24, effective July 15, 2024

Summary

Gaithersburg bans billboard signs outright under City Code § 24-8.3(E). Electronic message display signs are allowed only as part of a building, monument or geographic-area sign, are banned on single-family lots and in the RB zone, and are capped at one per 10 to 15 acres depending on zone, with brightness limited to 5,000 nits by day and 500 nits between dusk and dawn.

(E)Billboard signs. Billboard signs are prohibited. ...(3)An electronic message display sign must not have any distracting appearance of motion, flashing, blinking, or shimmering, and must not constitute a safety hazard by distraction of motor vehicle operators. The display must remain static for a minimum of six (6) seconds with instantaneous change of the display; i.e., no "fading" in/out between messages.(4)An electronic message display sign must be located so that it is a minimum of three hundred (300) feet from the right-of-way used for any controlled-access highway or interchange ramp. ... Electronic message display signs are prohibited on properties with single-family uses. ... Electronic message display signs are prohibited on properties within the RB zone. ... During daylight: 5,000 nits (candelas per square meter) ... Between dusk and dawn: 500 nits (candelas per square meter)

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 52 Update 1).

Full Breakdown

The prohibition sits in Article 8, Signage Standards (Ord. No. O-5-24, July 15, 2024). 3(E) lists billboard signs among the elements banned citywide, alongside balloon signs, flashing signs, roof signs and freestanding permanent signs generally. 17. They cannot stand alone: an electronic display must be integrated into a permanent building sign, monument sign or geographic area sign, and cannot be used as part of any temporary sign. 17-1 sets the numeric limits: electronic message displays are prohibited outright on properties with single-family uses and on any property in the RB zone; other standard residential zones cap multifamily developments at one sign per ten acres or portion thereof, and standard non-residential zones and floating zones generally allow one per ten acres, or one per fifteen acres in the CB zone.

The display must hold each message static for at least six seconds with no fade transitions, sit at least 300 feet from any controlled-access highway or interchange ramp, use letters at least five inches tall, go dark automatically if it malfunctions, and if within 100 feet of a single-family use, must be oriented or screened so no part of the display is visible from the residential structure. Brightness is capped at 5,000 nits during daylight and 500 nits between dusk and dawn, with automatic dimming keyed to ambient light.

Violations & Fines

Sign violations fall under § 24-15.1(C): the city manager or a designee enforces Article 8, can inspect property at reasonable times, and may order the removal of any sign that does not conform, including an unpermitted or oversized electronic display or an outright-banned billboard. If an owner fails to comply with a removal order, the city may remove the sign itself and bill the permittee or owner for the cost. Owners can appeal a removal, denial, revocation or suspension order to the board of appeals under § 24-12.9.

Frequently Asked Questions

Are billboards legal in Gaithersburg?
No. Section 24-8.3(E) of the city zoning code lists billboard signs among the sign types prohibited citywide, alongside off-premises signs generally, roof signs and freestanding permanent signs outside narrow exceptions. There is no permit path to build a traditional billboard anywhere in the city.
Can a business install a digital sign in Gaithersburg?
Only as part of an approved building, monument or geographic-area sign under § 24-8.17, and only outside single-family zones and the RB zone. The display must stay static for at least six seconds between messages, sit 300 feet from a controlled-access highway, and meet the brightness caps of 5,000 nits by day and 500 nits at night.
How bright can an electronic sign be at night?
No more than 500 nits (candelas per square meter) between dusk and dawn, per table 24-8.17-1. Daytime brightness is capped higher, at 5,000 nits, and every electronic message display must have automatic brightness control keyed to ambient light so it never exceeds 0.3 foot-candles above ambient light.
What if an electronic sign is near a house?
Section 24-8.17(A)(7) requires that when a display sits within 100 feet of a single-family use, it must be oriented so no part of the display face is visible from an existing or permitted residential structure on that lot, using landscaping or fencing to block the view if needed.

Sources & Official References

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