Works that require approval
- Changing the use of an existing building.
- Erecting or extending a building.
- Installing or extending a service or fitting, which is controlled under the regulations. This includes drains, some heating appliances and domestic, oil-fired heating or storage tanks.
- Inserting insulation into a cavity wall.
- Structural alterations, which will temporarily or permanently affect the ongoing compliance of the building, service or fitting with requirements relating to structure, fire or access to/use of buildings.
- Underpinning the foundations of a building.
- Work affecting the thermal elements, energy status or energy performance of a building.