Mobile Field Shelters – planning permission required?

If you keep horses, you may have thought about a mobile field shelter or stable to protect them against the good old British weather. But does being able to move it mean you can install it without planning permission?

The answer depends on the structure and any associated works, as well as the separate question of how the land is used. A manufacturer calling a shelter ‘mobile’ is not the same as a planning determination.

If you do a quick Google search, then you will rapidly discover that mobile field shelters or stables probably do not require planning. This is the story put out by manufacturers of the product. They might use the words generally do not or shouldn’t require planning etc. Buried deep somewhere will be a condition advising you to check with the local authority! This is a very broad statement to make as it is easy to make anything not legal!

A useful example is the Harwood Dale mobile stable appeal, decided on 11th September 2026. The Inspector found that a timber shelter measuring approximately 3.65m by 7.3m was not a building and quashed the enforcement notice.

The shelter rested on metal skids, had a towing bar, no foundations and no physical attachment to the ground. It had arrived fully assembled. Although it could remain indefinitely and therefore had some permanence, the Inspector gave greater weight to its modest size and lack of attachment.

The Inspector also found that transporting, lifting and positioning that completed shelter did not amount to an ‘other operation’ on the evidence before him. These were findings about this particular structure and its siting, not a general exemption for every shelter on skids.

The combined decision, APP/W9500/C/25/3367328 and 3367329, did not grant permission for any separate equestrian use of the surrounding land. That is a different question.

A manufacturer’s description is not a planning determination. If you need certainty before buying or installing a shelter, the safest route is to assess the structure, the lawful use of the land and the relevant case-specific facts, and where appropriate seek a formal lawful development certificate.

So what are the facts?

What is a mobile field shelter?

Mobile field shelters are basic structures erected for horses, goats, sheep, pigs, llamas etc. Being mobile they must be easily moveable from one location to another. Often they are built on skids or wheels. They might be made of wood or other suitable materials.

Field Shelter Planning

Equestrian land does not benefit from the agricultural rights in Part 6 merely because horses are present. Other permitted development rights may still be relevant to a particular planning unit, including some minor operations under Part 2. A separate temporary-use right may also be available under Class B of Part 4, subject to its own limits and exclusions.

Being on wheels or skids is not a planning exemption. The question is whether the object is a chattel or has become operational development because of its size, construction, physical attachment and degree of permanence. Moving a shelter around the same field also does not restart a separate temporary-use allowance under Class B.

We also need to consider the lawful use of the land. Simple grazing by horses can remain agricultural, while keeping, riding, training or exercising horses may amount to a material change to equestrian use depending on the facts. If an equestrian use has continued for the relevant immunity period, a Certificate of Lawfulness of Existing Use or Development (CLEUD) can be used to establish that lawfulness. If the use is not lawful, planning enforcement may become relevant.

If the land is agricultural, then there might be permitted development rights for erecting suitable structures under Part 6 of the GPDO. This adds to the confusion!

Whether a shelter is a building depends on size, permanence and physical attachment, assessed together as a matter of fact and degree. The ability to move it is relevant evidence, but wheels or skids do not decide the answer on their own. Nor is there a universal rule that moving a shelter every few weeks avoids planning control.

Fixing a shelter to the ground, constructing foundations, laying a purpose-made base or carrying out associated earthworks can all point towards operational development. These works require their own assessment: a separate hardstanding may itself be development even where the shelter is a chattel.

Calling the structure a ‘stable’ rather than a ‘field shelter’ does not automatically turn it into a building. Equally, placing a chattel on land does not make every use of that land lawful.

If the actual use changes from agriculture to a materially different equestrian use, that may require planning permission in its own right. Assess the structure, associated works and land use separately rather than assuming one answer settles all three.

Residential curtilage

If horses are kept as part of the enjoyment of a dwellinghouse, a shelter or stable within the residential curtilage may sometimes fall within Class E of Part 1, but only where the building is genuinely incidental to the enjoyment of the dwellinghouse and all of the Class E limitations are met. A paddock or field is not automatically part of the residential curtilage simply because it is in the same ownership.

So, does a mobile field shelter need planning permission?

Sometimes yes and sometimes no. A shelter may be a chattel rather than a building, depending on its size, permanence and physical attachment, considered with the evidence about its construction and siting. Calling it ‘mobile’ does not decide that question.

Even where the structure is a chattel, separately check whether the use of the land or any associated works involve development requiring planning permission.

If the land is being used unlawfully for an equestrian purpose, the planning authority can consider that breach separately from the shelter itself. Our planning enforcement guide explains the wider process.

For certainty before installation, consider a CLOPUD. If the shelter already exists and you are establishing that an existing development or use is lawful, the appropriate route may instead be a CLEUD. If you would like us to assess the facts and prepare the application, get in touch.

The practical message is simple: check both the status of the shelter and the lawful use of the land. One does not cure a problem with the other.

If you need further help, why not post on our forums.

Other Agricultural Sections

Mobile Field Shelters Page Updated: 12th September 2026