- Project plans
- Project activities
- Legislation and standards
- Industry context
- Specialist wikis
Last edited 28 Sep 2020
Sui generis and planning permission
The different use classes are set out in the Town and Country Planning (Use Classes) Order 1987. This stipulates that in terms of planning permission, if a use of land is to change within a use class, then this does not require planning permission. However, planning permission is usually needed where the change of use involves activities within the sui generis category. These include theatres, petrol filling stations, casinos, amusement centres, car hire businesses, and so on. See Sui generis for more information.
There are, however, permitted development rights that allow movement between some sui generis uses and other uses. There is a common misconception that changing the use from an existing use class to a sui generis class always requires planning permission. Permission is only required if the sui generis use is materially different from the existing one.
If there is any doubt, a lawful development certificate can be applied for. This must include a detailed and unambiguous description of the use, operations or other matter for which it is to be granted. The characteristics of the matter should be spelled out in detail to avoid future problems of interpretation.
 Related articles on Designing Buildings Wiki
Featured articles and news
IHBC members encouraged to update violations database.
Non-obtrusive security sensors can help deter intruders.
Adopting a fabric first approach to efficiency.
Government emphasises training for construction and engineering trades.
ECA and SELECT offer assistance to members set back by delays.
The virtual learning event examines Historic Places - People Places.
Getting post-pandemic infrastructure on the right track.
One of England's grandest country houses.
Take just two minutes to provide your feedback.
An update of standards and regulations is under consideration.
Exploring the key to the adoption of this abundant energy source.
His clients have ranged from Liberace to St Nick to world-class athletes.