The installation of a GSHP on a domestic property does not normally require planning permission. This is because it falls under the scope of work you can undertake without an application, known as permitted development.
However, there are some exceptions to this. If the ground source heat pump will cover more than 0.5 hectares of land, then you will need to seek planning permission. In addition to this, if you live in a listed building, then you will need to contact your local council.
Learn more about planning permissions for heat pumps in our blog post.