The application writers and the approving authorities can't make whatever rules they want. I think that if there is anything outrageous in the planning applica

The application writers and the approving authorities can't make whatever rules they want. I think that if there is anything outrageous in the planning application, and it gets approved by the local authority, it can still be challenged in a court. I am certain, for example, that if the planning application would include a clause banning e.g. blacks, LGBT, or non-Anglicans from buying a property, this would be shot down later, even if approved. The question is, whether limiting current homeowners from buying a property would stand up to the courts' scrutiny or not.