UK Planning Permissions for Temporary Buildings
Temporary warehouses and industrial tents can be used without planning permissions in the UK if they are used for a very short duration only. This can be until 28 days at a given location, and there are exceptions to this. Exceptions take the size, position and building reason into consideration. If the buildings are in use for a longer period that 28 days one usually needs to apply for a semi-permanent or a permanent permission.