Get a quote


Changes of Use

6 May 2016
Default Author image
Eugene Kim






































baguette beauty takeout



  • A1 Shops, retail warehouses, hairdressers, undertakers, travel & ticket agencies, post offices, pet shops, sandwich bars, showrooms, domestic hire shops, dry cleaners, funeral directors and internet cafes.
  • A2 Financial & professional services – banks & building societies, professional services (other than health and medical services) including estate and employment agencies. Betting offices / pay day loan shops are no longer included. See as “sui generis” uses below.
  • A3 Restaurants / cafés
  • A4 Drinking establishments – Public houses, wine bars (not night clubs).
  • A5 Hot food takeaways – For the sale of hot food for consumption off the premises.


  • B1 Business – Offices (other than those in A2), research / development, light industry appropriate to residential areas.
  • B2 General industrial – other than falling within class B1 (excludes incineration purposes, chemical treatment, landfill or hazardous waste).

  • B8 Storage / distribution – including open air storage.


  • C1 Hotels, boarding and guest houses where no significant care is provided (not hostels).

  • C2 Residential care homes, hospitals, nursing homes, boarding schools, residential colleges / training centres.

  • C2A Secure Residential Institution – Use for a provision of secure residential accommodation, including use as a prison, young offenders institution, detention centre, secure training centre, custody centre, short term holding centre, secure hospital, secure local authority accommodation or use as a military barracks.

  • C3 Dwellings – this class is formed of 3 parts:

    C3(a) covers use by a single person or a family (a couple whether married or not, a person related to one another with members of the family of one of the couple to be treated as members of the family of the other), an employer and certain domestic employees (e.g. au pair, nanny, nurse, governess, servant, chauffeur, gardener, secretary and personal assistant), a carer and person receiving care or a foster parent and foster child.



    C3(b): up to six people living together as a single household and receiving care e.g. supported housing schemes such as those for people with learning disabilities or mental health problems.

    C3(c) allows for groups of people (up to six) living together as a single household. This allows for those groupings that do not fall within the C4 HMO definition, but which fell within the previous C3 use class, to be provided for i.e. a small religious community may fall into this section as could a homeowner who is living with a lodger.

  • C4 Houses in multiple occupation – small shared houses occupied by between three and six unrelated individuals, as their only or main residence, who share amenities such as a kitchen or bathroom.


  • D1 Non-residential institutions – Clinics, health centres, crèches, day nurseries, day centres, schools, art galleries (other than for sale or hire), museums, libraries, halls, places of worship, church halls, law court. Non residential education and training centres.

  • D2 Assembly and leisure – Cinemas, music and concert halls, bingo and dance halls (but not night clubs), swimming baths, skating rinks, gymnasiums or area for indoor or outdoor sports and recreations (except for motor sports, or where firearms are used).


  • Sui Generis – Certain uses do not fall within a class so are considered ‘sui generis’. Such uses include: betting offices/shops, pay day loan shops, theatres, larger houses in multiple occupation, hostels providing no significant element of care, scrap yards. Petrol filling stations and shops selling and/or displaying motor vehicles. Retail warehouse clubs, nightclubs, launderettes, taxi businesses, amusement centres and casinos.

  • Lets not mix up our Cs or we may get more than we bargained for (C2A)!



Sui Generis would appear to be like M for Miscellaneous. But the definition is more like a class of their own, like the irregular French verbs. Lets just be careful not to confuse our C2s with C2As!


The End   ∎ 

Default Author image


Eugene Kim

Eugene Kim, Founder and Managing Director of Extension Architecture, has led the firm for over 14 years, consistently delivering quality solutions. His dedication has been key to the company's growth and success.

Steph Fanizza, Architectural Design & Team Manager

Tell us about your plan and we'll send you a free quote! It takes less than 60 seconds!

Step 1 of 8

Book a free video meeting