- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 19 Jun 2019
Change of use class
The Town and Country Planning (Use Classes) Order categorises uses of land and buildings. Developments may not be used for purposes that are not within the use class for which they received planning permission.
- A1. Shops.
- A2. Financial and professional services.
- A3. Food and drink.
- B1. Business.
- B2. General industrial.
- B3 to B7. Special industrial.
- B8. Storage or distribution.
- C1. Hotels and hostels.
- C2. Residential institutions.
- C3. Dwellinghouses.
- D1. Non-residential institutions.
- D2. Assembly and leisure.
- ‘Sui generis’ buildings are those that do not fall within any particular use class.
See: Use class designation for land and buildings for more information.
Changing the use of a development from one class to another may require planning permission, however, some changes are considered to be ‘permitted developments’ that are allowed without the need for a planning application. These permitted changes are listed on the Planning Portal website and are summarised below:
|A1||A1 plus up to two flats above.|
|A2||A2 plus up to two flats above.|
|A2 (professional and financial services) when premises have a display window at ground level||A1 (shop)|
|A3 (restaurants and cafes)||A1 or A2|
|A4 (drinking establishments)||A1, A2 or A3|
|A5 (hot food takeaways)||A1, A2 or A3|
|B1 (business) (not more than 500 square metres of floor space)||B8 (storage and distribution)|
|B2 (general industrial)||B1 (business)|
|B2 (general industrial) (not more than 500 square metres of floor space)||B8 (storage and distribution)|
|B8 (storage and distribution) (not more than 500 square metres of floor space)||B1 (business)|
|C3 (dwellinghouses)||C4 (houses in multiple occupation)|
|C4 (houses in multiple occupation)||C3 (dwellinghouses)|
|Casinos (sui generis)||D2 (assembly and leisure)|
From 30 May 2013.
|Agricultural buildings under 500 square metres||A1, A2, A3, B1, B8, C1 and D2 (subject to prior approval of certain aspects)|
|B1, C1, C2, C2A and D2||State-funded school (subject to prior approval of certain aspects)|
|B1(a) office use||C3 residential use (subject to prior approval of certain aspects)|
|A1, A2, A3, A4, A5, B1, D1 and D2||A1, A2, A3 and B1 uses for a single period of up two years|
|B1 and B2||B8 Thresholds increased from 235 square metres to 500 square metres|
|B2 and B8||B1 Thresholds increased from 235 square metres to 500 square metres for permitted development|
From 6 April 2014 (with some restrictions)
|A1 and A2 small shop or provider of professional / financial services||C3 residential use (subject to prior approval of certain aspects)|
|A1 shop||Bank or a building society|
|Buildings used for agricultural purposes||C3 residential use (subject to prior approval of certain aspects)|
|Offices (B1), hotels (C1), residential (C2 and C2A), non-residential institutions (D1), and leisure and assembly (D2)||Nurseries providing childcare (subject to prior approval of certain aspects)|
|Buildings used for agricultural purposes||State funded school or nursery providing childcare (subject to prior approval of certain aspects)|
This already very confusing situation is further complicated by the ability of local authorities to make article 4 directions which remove permitted development rights to protect the character of a particular area. See: Article 4 direction for more information.
NB: The Queen's speech in June 2014 suggested there would be further reform to change of use rules to make it easier for empty and redundant buildings to be converted into productive use, supporting brownfield regeneration and increasing the supply of new homes
On 31 July 2014, Brandon Lewis, newly-appointed Minister of State for Housing and Planning at the Department for Communities and Local Government, announced proposals suggesting that rules governing change of use from a shop to a restaurant, and from a shop to leisure use, may be relaxed in order to help high streets adapt to changing customer needs. Payday loan shops and betting shops would be excluded from a new, wider “retail class”, so councils have a greater say over these being set up in their area. (Ref. DCLG, Making the planning system work more efficiently and effectively, Giving communities more power in planning local development, 31 July 2014.)
 Find out more
 Related articles on Designing Buildings Wiki
- Alterations to existing buildings.
- Article 4 direction.
- Avoiding planning permission pitfalls.
- Caravan Sites and Control of Development Act 1960.
- Detailed planning permission.
- Land use.
- National Planning Policy Framework.
- Outline planning permission.
- Permitted development.
- Planning enforcement.
- Planning permission.
- Prior approval.
- Sui generis.
- Sui generis and planning permission.
- Use class designation for land and buildings.
- Zoning in the United States.
Featured articles and news
Why civil engineering is the 'best' career.
Green rating systems
Information is the lifeblood of quality management.
How PowerLottery helps industry colleagues.
Eliminating waste through blockchain.
Emerging cost contracts.
Connecting infrastructure with housing.
All about E-procurement.
Winners and finalists in CIAT's architectural technology awards.
Their survival against the odds is a remarkable feature of the City’s history.
Immersed, charmed and inspired on conservation’s front line.