Scaffolding, hoardings and site cabins: are they development

Most scaffolding, hoardings and site cabins need no hoarding planning permission of their own, because Class A of Part 4 of Schedule 2 to the General Permitted Development Order 2015 grants a temporary right for buildings, moveable structures, works, plant and machinery required in connection with construction operations, for the duration of those operations. The catch is that the right is tied to the operations, it expires with them, and it says nothing about the highway. Anything standing on or over adopted highway needs a licence from the highway authority under the Highways Act 1980, and that is a separate application with its own fee and its own refusal risk.

Get the two regimes straight before the programme is written. Contractors regularly assume a planning permission covers a pavement hoarding. It does not.

Whether temporary construction items are development at all

Section 55 of the Town and Country Planning Act 1990 defines development as building, engineering, mining or other operations, or a material change in the use of land. Scaffolding erected against a building for the duration of works on that building is normally treated as part of the operation rather than as separate development. Nobody applies for permission to put up a scaffold.

The picture changes as the structure gets more permanent and more independent. A welfare cabin on blocks, a concrete-based storage compound, a site office with a mains connection and a car park: each of those is a building operation or a change of use of the land it sits on, and each needs a route to lawfulness.

That route is usually Part 4 Class A, which is why the class repays a careful read rather than an assumption.

The temporary right for buildings and plant on site

Class A permits buildings, moveable structures, works, plant or machinery required temporarily in connection with and for the duration of operations being carried out on that land or on land adjoining it. The wording does real work. The structure must be required for the operations, not merely convenient. And the right lasts only while the operations last.

Two conditions attach. When the operations finish, the building, structure, plant or machinery must be removed, and the land must be reinstated to its former condition so far as is practicable. The right does not apply where the operations are mining operations.

The phrase "land adjoining" is the one that saves most projects. A compound on the field next door, used for the works on the application site, sits inside the class provided it adjoins. A compound half a mile away on a separate parcel does not, and needs a temporary planning permission in its own right.

Designated land narrows things, and the position inside a listed building's curtilage is tighter again. Our note on permitted development rights in a listed building curtilage covers the interaction, and works affecting the building itself may still need listed building consent whatever Part 4 says.

Highway licences for scaffolding and hoardings

Two sections of the Highways Act 1980 do most of the work here.

Section 169 requires a licence from the highway authority for scaffolding erected on or over a highway. Section 172 requires a hoarding or fence to be erected, under licence, where a building near a street is being put up, altered or taken down. A separate licence under section 171 covers depositing building materials or making an excavation in the street.

Licences carry conditions on lighting, signage, pedestrian routes, insurance cover and duration, and they are chargeable. Lead-in times differ between authorities, and in busy urban boroughs a lane or footway closure can add weeks. Put the licence application on the programme at the same point as the pre-start conditions, not the week before the scaffold arrives.

None of this is a planning matter and none of it is dealt with by the case officer. But a condition on the planning permission can still bite on the same ground, typically by requiring the routeing, wheel washing and hours to be approved.

Advertising on hoardings and advertisement consent

A site hoarding that carries a notice naming the scheme and the parties carrying it out generally falls within the deemed consent classes in Schedule 3 to the Town and Country Planning (Control of Advertisements) (England) Regulations 2007, subject to the size and siting limits in the class.

Selling the hoarding as media space is different. Third-party advertising unrelated to the development needs express advertisement consent, and illumination brings further control. Contractors sometimes agree a media deal without checking, and the first sign of trouble is an enforcement notice from the council's advertisement officer.

Areas of special control of advertisements restrict things further, as do conservation areas. Check before the artwork is printed.

Duration limits, removal and what happens when works stall

Because Class A is tied to the operations, a stalled site is exposed. If the operations have stopped, the justification for the temporary structures has stopped with them, and the removal condition is engaged. Enforcement in that situation is unusual but not rare, particularly where a compound sits in open countryside or where neighbours are pressing.

Where a pause is foreseeable, the cleaner answer is a temporary planning permission for the compound with an end date, applied for before the pause rather than after a complaint. A temporary permission also solves the land that does not adjoin.

Separately, Class B of Part 4 allows the temporary use of land for most purposes for up to 28 days in a calendar year, with a lower limit for certain uses. It is occasionally useful for short-term parking or storage off site, but 28 days rarely covers a construction programme and the count is cumulative.

Compounds, conditions and what the construction plan should say

On anything above a householder scale, the compound arrangements end up inside a condition rather than inside Part 4, because the council wants control over hours, routeing and neighbour effects. A Construction Management Plan is the usual vehicle, with a separate Construction Traffic Management Plan where the highway authority is engaged.

A plan that gets discharged first time tends to cover:

1. The compound location, its extent on a drawing, and what stands on it.
2. Hoarding and scaffold positions, including anything over the footway, with the licence position stated.
3. Deliveries: routes, vehicle sizes, booking arrangements and the times they are allowed.
4. Wheel washing, road sweeping and dust suppression.
5. Working hours, including any different hours for noisy operations.
6. Storage of materials and fuel, and lighting orientation away from dwellings.
7. The contact point for neighbours and how complaints are logged and answered.
8. Restoration of the compound land when the works finish.

Write it as the site will actually run. A plan promising deliveries only between 10am and 4pm on a scheme that needs early concrete pours will be breached in week one, and a breached pre-commencement condition is a poor start with the enforcement team.

Illustrative example: a 14-unit scheme on a former yard, with the compound on an adjoining paddock in the same ownership. The compound falls within Part 4 Class A because the paddock adjoins. The pavement hoarding on the frontage needs a section 172 licence. The banner advertising the housebuilder's other developments needs express advertisement consent, and was the only element refused.

This is general guidance, not legal advice; check the position with your local planning authority or a qualified professional before relying on it. Where certainty matters, a lawful development certificate under section 192 of the Town and Country Planning Act 1990 is the only formal way to confirm that works are lawful. PlanScope provides AI-assisted draft reports for planning applications. Reports should be reviewed before submission. We do not guarantee planning approval.

Enter your postcode on PlanScope to see which reports your scheme is likely to need before the compound is set out.