In England, signs are governed by the Town and Country Planning (Control of Advertisements) (England) Regulations 2007, not by ordinary planning permission. That surprises people who have just got permission for a new shopfront and assume the fascia sign came with it. It did not.
The three routes a sign can take
- Excluded: a short list of signs the regulations do not control at all — for example some signs inside a building.
- Deemed consent: signs that are allowed without applying, provided they meet every condition of their class.
- Express consent: everything else. You apply to the council and wait for a decision before putting the sign up.
What a shop can usually put up without applying
The government’s guide for advertisers summarises Class 5, which covers signs on business premises about the business itself. A Class 5 sign must not be illuminated (unless it shows medical services), its lettering must not exceed 0.75 m in height, its top must be no higher than 4.6 m and no higher than the bottom of the first-floor window, and on a shop it can only go on a wall that has a shop window in it.
Class 4 allows some internally lit or halo-lit signs without an application, within further limits — one fascia sign and one projecting sign, the lowest point at least 2.5 m up, and the fascia no more than 0.25 m off the wall. The point most people miss: Class 4 does not apply in a conservation area, an Area of Outstanding Natural Beauty, a National Park, the Broads or an Area of Special Control of Advertisements.
In practice: if your shop is in a conservation area and you want an illuminated sign, plan to apply for express consent.
What the council looks at
Advertisement decisions are limited to two questions: amenity — how the sign affects the look of the building and street — and public safety, which mostly means not distracting drivers or obstructing the pavement. The sign’s wording and the business behind it are not the council’s concern. Councils’ own shopfront guides say what they mean by amenity: many ask for individual letters rather than box signs, external rather than internal lighting in historic streets, and one projecting sign at fascia level.
Listed buildings
A sign fixed to a listed building will usually also need listed building consent, because it affects the building’s character. That is a second application with a different test.
Why it matters more than an ordinary planning breach
Displaying an advertisement without the consent it needs is itself a criminal offence under the Town and Country Planning Act 1990. With most unauthorised building work the council first has to serve a notice; with an unauthorised sign it can prosecute.
Scotland, Wales and Northern Ireland
Scotland has its own advertisement regulations from 1984, Wales still operates the 1992 regulations with Welsh amendments, and Northern Ireland has its 2015 regulations. The broad shape is similar — deemed classes, then express consent — but the limits differ, so check the rules for the nation your shop is in.
This is a plain-English summary from an installer, not legal advice. Your council decides.