Planning requirements
Polytunnels – polytunnels are considered on a case-by-case basis by local planning authorities.
Portable buildings and containers – A portable building requires planning permission if it is to be in place for more than 28 days and the same applies to containers.
Communal huts or clubhouses – A communal hut for the storage of tools is likely to be larger and more permanent than a plot holder’s shed and will always be regarded as development requiring planning permission.
Sheds - In general, planning permission is not required for sheds on allotments as long as they do not exceed certain size and height limits. However, it is advisable to check with the local planning authority to ensure compliance with all relevant regulations.
Fencing – The General Permitted Development Order 1995 states that planning permission is not required for any means of enclosure including a fence, wall or gate provided that (a) it is below 1 metre high where it is adjacent to a road; or (b) it is below 2 metres anywhere else except within the curtilage of a Listed Building.
Access and car parking – The formation of a vehicular or pedestrian access to an allotment would definitely require planning permission. The creation of a car park to serve allotments would also definitely require planning permission.
Water supply – Statutory Undertakers such as United Utilities can lay pipes underground without the need for planning permission.
Water butts – The placing of a water butt on an allotment would not be classed as development and would not therefore require planning permission provided that it was not fixed to the ground.
Water storage tank or pond/reservoir – A permanent water storage tank, reservoir or pond would be an engineering operation requiring planning permission.
Toilet facilities - A permanent building connected to a sewer or septic tank would require planning permission as would a portable toilet or a composting toilet that is not fixed to the ground.