Maryland · Sign permitting

Commercial sign permits in Maryland.

Maryland has no single statewide sign-permit process. Building permits for signs are issued and enforced locally by each county or municipality under the Maryland Building Performance Standards (MBPS), which require every jurisdiction to adopt the same edition of the International Building Code but allow local amendments. The result is a common structural/electrical baseline plus highly variable local zoning sign codes, and a separate state Outdoor Advertising permit from MDOT for signs near state highways.

What makes Maryland different

Baltimore City and Baltimore County are entirely separate jurisdictions with separate codes, a frequent trap. Baltimore City uses Zoning Code Title 17 and Table 17-201; Baltimore County uses its own Zoning Regulations and Table of Sign Regulations.
Annapolis bans internally illuminated signs in its historic district outright and requires a Historic Preservation Commission Certificate of Approval before the sign permit is even filed.
Maryland's only genuinely state-issued layer is the MDOT Outdoor Advertising permit for signs near state highways, which requires a plat showing the area within 500 feet of the sign and renews annually.

Statewide rules that apply broadly

Maryland Building Performance Standards (MBPS)

Every Maryland jurisdiction must use the same IBC edition but may amend it locally, and permits are issued and enforced locally. The IBC's Appendix H (Signs) is the model sign-construction chapter but is enforceable only where a jurisdiction explicitly adopts it, so its structural and area caps must not be assumed to apply statewide. Illuminated signs are wired per NFPA 70.

MDOT outdoor advertising

Signs that are outdoor advertising near a state highway require the Maryland DOT Outdoor Advertising Sign Permit, a distinct state-highway permit that requires a plat showing the area within 500 feet of the sign and renews annually. It is separate from the local building and zoning sign permit.

The typical permit process

01Confirm zoning: identify the property's local zoning district and check the applicable sign table or ordinance for allowed sign type, area, height, placement, and quantity.
02If the property is in a designated historic district, obtain historic-preservation approval before applying for the sign permit (Annapolis HPC Certificate of Approval; Frederick HPC approval; Baltimore CHAP review).
03Prepare submittal drawings: a site plan showing property lines and the building facade, sign dimensions, copy, mounting detail, and a foundation and wind-load design for freestanding signs.
04Apply for the sign (building) permit with the local permitting office, often through an electronic portal; some jurisdictions require a joint application signed by both the property owner and the licensed sign installer.
05Add an electrical permit for any illuminated sign, with work performed by a licensed electrician per NFPA 70.
06Plan review and approval; if the sign doesn't conform to zoning, seek a variance (for example the Montgomery County Sign Review Board), then pass required inspections.
07Separately, if the sign is outdoor advertising near a state highway, obtain the MDOT Outdoor Advertising permit.

Notable jurisdictions

Baltimore City

Governs signs under Zoning Code Title 17, using Table 17-201 to set, by zoning district, the allowed sign type, approval method, maximum area, placement, and quantity. Historic and architectural districts add Commission for Historical and Architectural Preservation (CHAP) review.

Montgomery County

Permits are issued by the Department of Permitting Services, largely through ePlans electronic submission. A permit is required to construct, erect, move, enlarge, illuminate, or substantially alter a sign; the property owner and sign installer must file a joint application, and nonconforming signs require a variance from the Sign Review Board.

Baltimore County

A separate jurisdiction from Baltimore City, with its own Zoning Regulations (Section 450 Signs and the Table of Sign Regulations) and a Sign Building Permit administered by the Department of Permits, Approvals and Inspections, including a published sign-drawing checklist.

Annapolis

A strong historic-district overlay. Exterior signage in the Historic District requires a Historic Preservation Commission application and a Certificate of Approval before the sign permit is filed; internally illuminated signs are not permitted in the historic district, and permits are filed through the city's CSS portal.

Frederick

The Downtown Frederick Town Historic District requires HPC approval for all exterior work including signage before the sign permit. Notably, in the Downtown Commercial/Residential district, one sandwich-board sign placed in front of the business and removed each night is allowed without HPC approval or a permit, subject to size and placement rules.

On timelines

Timelines depend heavily on jurisdiction and sign type. A straightforward wall sign in a permissive commercial district can be a relatively quick over-the-counter or online plan-review approval, while signs needing a historic Certificate of Approval, design review, or a zoning variance add weeks to months because they go before a board that meets on a fixed schedule. MDOT cites roughly a two-week window for its state Outdoor Advertising permit, but that is a separate state highway permit, not the local building/zoning sign permit. Confirm with the local office.

What adds review, time, or cost

Illuminated signs require both a sign/building permit and a separate electrical permit, wired per NFPA 70.
Freestanding signs require a foundation, footing, and wind-load design plus a footing inspection.
Historic districts require a Certificate of Approval before the sign permit (Annapolis, Frederick, Baltimore CHAP).
Outdoor advertising near a state highway requires the MDOT Outdoor Advertising permit (annual).

Some jurisdictions exempt limited-duration or temporary signs on private property but require approval for signs in the public right-of-way; Frederick allows one daily-removed sandwich board in its downtown district without a permit. Because Appendix H applies only where locally adopted, don't assume its exemptions or caps apply in every Maryland jurisdiction.

Questions people ask

Is Baltimore City the same as Baltimore County for sign permits?

No — they're entirely separate jurisdictions with separate codes, which is a common trap. Baltimore City uses Zoning Code Title 17 and Table 17-201; Baltimore County uses its own Zoning Regulations and Table of Sign Regulations.

Can I have an internally illuminated sign in Annapolis?

Not in the historic district. Annapolis prohibits internally illuminated signs in its historic district and requires a Historic Preservation Commission Certificate of Approval before the sign permit is even filed.

Does Maryland have a statewide sign permit?

No. There's a uniform statewide building-code baseline (MBPS-mandated IBC), but the zoning sign codes and the permits themselves are local. The only state-issued layer is the MDOT Outdoor Advertising permit for signs near state highways.

Sources

Informational only, not legal advice. Sign codes and fees change and vary by jurisdiction — confirm current requirements with the local department before you rely on them.

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