Material change of use

According to the Building Regulations, there is a 'material change of use' where:

There is a change in the purposes for which or the circumstances in which a building is used, so that after that change:

• The building is used as a dwelling, where previously it was not;
• The building contains a flat, where previously it did not;
• The building is used as an hotel or a boarding house, where previously it was not;
• The building is used as an institution, where previously it was not;
• The building is used as a public building, where previously it was not;
• The building is not a building described in classes 1 to 6 in Schedule 2, where previously it was;
• The building, which contains at least one dwelling, contains a greater or lesser number of dwellings than it did previously;
• The building contains a room for residential purposes, where previously it did not;
• The building, which contains at least one room for residential purposes, contains a greater or lesser number of such rooms than it did previously; or
• The building is used as a shop, where previously it was not.

[edit] Related articles on Designing Buildings Wiki

• Alterations to existing buildings.
• Approved documents.
• Building regulations.
• Material alteration.
• Material amendment.
• Minor material amendment.
• Non material amendment.