This depends on the size and complexity of the proposed work. I always quote before starting any work.

Building Control stipulates that Structural Calculations are required for structural work. This is to ensure the safety of a new building. It includes information such as materials required, measurements, supporting walls, load bearings and connection calculations.

Building regulations approval is required for most building work in the UK. These are legal obligations to ensure that the proposed work is built correctly.

As a homeowner you’re responsible for your home and any related building work. Works to your property, or creations of new structures will most likely need to be approved. Building Regulations ensure a building is accessible to all and safe for use.

If you decide to build something new or pursue a major change to your building you will probably need planning permission. If your desired project needs permission and you do the work without approval, you can be served an enforcement notice ordering you to undo all the changes you have made. So it’s not worth taking the risk – check before you start.