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New Hampshire · Sign permitting

Commercial sign permits in New Hampshire.

In New Hampshire, on-premise commercial signage is regulated almost entirely at the local level. Each city or town adopts its own sign ordinance, with no statewide commercial sign permit. A separate state layer applies only to off-premise billboards along interstate, federal-aid primary, and turnpike systems, which the NH DOT permits under RSA chapter 236. New Hampshire isn't a billboard-ban state, but it bans them on scenic byways, and towns can lawfully ban digital signs outright.

What makes New Hampshire different

  • New Hampshire towns can lawfully ban electronic/changeable-copy (digital message-center) signs outright. The NH Supreme Court upheld Concord's ban in Carlson's Chrysler v. City of Concord (2007). A digital sign that's routine elsewhere may be flatly prohibited, so check the local code first.
  • Billboards are prohibited on designated scenic and cultural byways (RSA 238:24), and the state DOT permit is tiered by size under RSA 236:72 ($50 up to 50 sq ft; $75 over 50 but under 350; $100 for 350 or more), expiring annually on April 1.
  • The New England historic-district tradition (Portsmouth most prominently) adds a Historic District Commission Certificate of Approval and monthly design review on top of the ordinary sign permit.

Statewide rules that apply broadly

NH DOT billboards (RSA Ch. 236)

Off-premise billboards along interstate, federal-aid primary, and turnpike systems require a NH DOT permit under RSA chapter 236, with fees tiered by size (RSA 236:72: $50 up to 50 sq ft; $75 over 50 but under 350; $100 for 350 sq ft or more) and annual expiration on April 1. Billboards are prohibited on designated scenic and cultural byways (RSA 238:24).

Local control + content neutrality

On-premise signage is governed by each municipality's zoning ordinance under RSA 674:16-17, so size, height, illumination, and number limits differ by town. After Reed v. Town of Gilbert, NH sign codes must be content-neutral, and towns may lawfully ban digital/electronic message-center signs (upheld in Carlson's Chrysler v. City of Concord, 2007).

The typical permit process

  1. 01Determine whether the sign is on-premise (local) or off-premise/billboard (also a state NH DOT permit).
  2. 02For on-premise signs, identify the jurisdiction and zoning district, since allowances are set by the local ordinance.
  3. 03Apply at the municipal office (building/inspection, planning, or code enforcement) with a scaled drawing showing dimensions, copy area, height, setback, illumination, and structural/electrical details; some cities (Concord) require a Master Signage Plan for the lot first.
  4. 04If the property is in a historic district (Portsmouth), obtain a Certificate of Approval from the Historic District Commission, which typically meets monthly.
  5. 05Pull an electrical permit for illuminated or electronic signs.
  6. 06For a billboard, secure local zoning approval first (many towns regulate or prohibit billboards), then apply to NH DOT under RSA 236:72; permits expire April 1 and renew by March 15.
  7. 07Confirm content-neutrality and message-substitution rights post-Reed.

Notable jurisdictions

Manchester

NH's largest city; on-premise sign permits run through the Building Division, with sign regulations in the Zoning Ordinance (Article 9). Illuminated/electronic signs require electrical permitting, and signs near public ways carry insurance requirements.

Nashua

The second-largest city; sign rules are in the Land Use Code (Article X), with district-specific allowances and reduced ground-sign height where a nonresidential lot abuts a residential one, permitted through Building Safety.

Concord

The state capital; sign regulations are in the zoning ordinance (Article 28-6), and a Master Signage Plan is required for a lot before an individual sign permit issues. Concord's ban on electronic changeable-copy signs was upheld by the NH Supreme Court (Carlson's Chrysler v. City of Concord, 2007).

Portsmouth

A historic coastal city; properties within the Historic District require a Certificate of Approval from the Historic District Commission (which generally meets the first Wednesday monthly) on top of the standard sign permit.

Bedford

An affluent suburb with a restrictive, aesthetics-driven ordinance — externally lit signs are encouraged over internally lit ones, and animated, moving, flashing, and changeable readerboard signs (manual or electronic) are prohibited.

On timelines

Timelines vary widely by jurisdiction and sign type. A conforming on-premise wall or freestanding sign can be an over-the-counter or short administrative review (days to a couple of weeks). Add significant time if a Zoning Board variance or special exception is needed, if Planning Board site-plan review is triggered, or if the sign is in a historic district where the Historic District Commission (often meeting only monthly) must issue a Certificate of Approval. State NH DOT billboard permits run on a separate annual cycle (expiring April 1; renewals due March 15). Confirm with the specific municipality.

What adds review, time, or cost

  • Illuminated or electronic signs require an electrical permit, and many NH towns can lawfully ban electronic/changeable-copy signs entirely.
  • Signs in a historic district (Portsmouth) require a Historic District Commission Certificate of Approval, with monthly meeting lead time.
  • Some cities (Concord) require a Master Signage Plan for the lot before an individual sign permit.
  • Off-premise billboards require local approval plus a NH DOT permit (tiered fee, April 1 annual expiration) and are prohibited on scenic byways.

Exemptions are set by each municipality's ordinance and vary widely, and NH codes must be content-neutral after Reed v. Gilbert. Confirm the local code — especially whether it permits electronic message-center signs at all.

Questions people ask

Can a New Hampshire town ban digital signs?

Yes. NH towns can lawfully ban electronic/changeable-copy (digital message-center) signs outright. The NH Supreme Court upheld Concord's ban in Carlson's Chrysler v. City of Concord (2007). Always check whether the local code permits a digital sign before designing one.

Does New Hampshire ban billboards?

Not statewide. NH permits billboards along controlled highways with a NH DOT permit (tiered $50/$75/$100 by size under RSA 236:72, expiring April 1), but bans them on designated scenic and cultural byways (RSA 238:24).

What slows a sign permit in Portsmouth?

Historic review. Properties in Portsmouth's Historic District need a Certificate of Approval from the Historic District Commission, which generally meets only once a month, a design-review step on top of the ordinary sign permit.

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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