Material change of use

Approved Document F Volume 1, 2021 edition, states:

Material change of use Defined in regulation 5 as:

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;
• b. the building contains a flat, where previously it did not;
• c. the building is used as an hotel or a boarding house, where previously it was not;
• d. the building is used as an institution, where previously it was not;
• e. the building is used as a public building, where previously it was not;
• f. the building is not a building described in classes 1 to 6 in Schedule 2, where previously it was;
• g. the building, which contains at least one dwelling, contains a greater or lesser number of dwellings than it did previously;
• h. the building contains a room for residential purposes, where previously it did not;
• i. the building, which contains at least one room for residential purposes, contains a greater or lesser number of such rooms than it did previously;
• j. the building is used as a shop, where it previously was not; or k. the building is a building described in regulation 7(4)(a), where previously it was not.

[edit] Related articles on Designing Buildings

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