- Project plans
- Project activities
- Legislation and standards
- Industry context
- Specialist wikis
Last edited 12 Nov 2020
The Town and Country Planning (General Permitted Development) Order 1995 permits certain types of development without needing to seek planning permission from the local planning authority. These are known as ‘permitted developments’.
- Class A ‘…provision on land of buildings, moveable structures, works, plant or machinery required temporarily in connection with and for the duration of operations being or to be carried out on, in, under or over that land or on land adjoining that land.’
- Class B ‘…use of any land for any purpose for not more than 28 days in total in any calendar year, of which not more than 14 days in total may be for the purposes referred to in paragraph B.2 (the holding of a market, motor car and motorcycle racing including trials of speed, and practising for these activities), and the provision on the land of any moveable structure for the purposes of the permitted use.’
However, Class A developments are not permitted for mining operations, or if planning permission is required for those operations but is not granted or deemed to be granted. In addition, ‘…any building, structure, works, plant or machinery permitted by Class A shall be removed, and, any adjoining land on which development permitted by Class A has been carried out shall, as soon as reasonably practicable, be reinstated to its condition before that development was carried out.’
Class B developments are not permitted if:
- The land in question is a building or is within the curtilage of a building.
- The use of the land is for a caravan site.
- The land is, or is within, a site of special scientific interest and the use of the land is for:
- The holding of a market.
- Motor car and motorcycle racing including trials of speed, and practising for these activities.
- Other motor sports.
- Clay pigeon shooting.
- Any war game.
- The use of the land is for the display of an advertisement.
 Related articles on Designing Buildings Wiki
- Approved documents.
- Building regulations.
- Building regulations exemption for temporary buildings.
- Caravan Sites and Control of Development Act 1960.
- Inflatable building.
- Live event production.
- Modular buildings.
- Modular buildings in the educational sector.
- Permitted development.
- Planning permission.
- Temporary building.
- Temporary demountable structures.
- The history of fabric structures.
Featured articles and news
IHBC publishes response to consultation.
Institute applauds funding initiatives but presses for additional retrofit and tax measures.
The switch from analogue to digital has begun.
The fourth industrial revolution is well underway.
Free online resource will offer guidance on conserving places and the planet during COP26.
Government allocates additional money for building new homes on derelict land.
Smart built environments can be designed around the requirements of real people.
Consistency is at the core of realistic strategies.
Entries being accepted until 20 November 2021.