Will I need planning permission?
The installation of ground or water sources heat pumps within the grounds of a dwelling or flat will normally be regarded as "permitted development" and would not need planning permission.
If the property is a listed building or the proposal is within the grounds of a listed building you might need to have listed building consent.
Building control advice
This specialised installation involves utilising energy from subsoil pipes to assist with water heating.
This is classed as the provision or extension of a controlled service or fitting and building regulation approval is required.
Full specifications, energy efficiency appraisal, and specialist consultant details will be required along with electrical details (except if a Part P competent person is used).
If the contractor is registered with a government approved Competent Persons Scheme (Building Regulations 2010, Schedule 3, Item 17), then self certification for compliance with Building Regulation requirements, can be issued.
Building regulation approval process