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Last edited 15 Sep 2020
How long it takes to get building regulations approval and how long it lasts
There are two types of building regulations application:
- Full plans application: Generally on larger, new-build projects, a 'full plans' application will be made, meaning that full details of the proposed building works are submitted for approval before the works are carried out.
- Building notice application: On smaller projects, or when changes are made to an existing building, approval may be sought by giving a 'building notice'. In this case, a building inspector will approve the works as they are carried out by a process of inspection. However, this leaves the client at risk that completed works might not be approved, resulting in remedial costs.
 Full plans application
A decision should be received within five weeks for a full plans application. However, this may be extended to two months by agreement. It is necessary then to give the building control body two working days notice before commencing the works.
The approval lasts for three years, within which time the building work must commence, or a fresh application will be required. This can be very important given the speed at which the regulations change, meaning that a building which has been approved, but where construction has not begun, may need to be re-designed to satisfy the new regulations.
 Building notice application
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