Land and Land Ownership | Intergovernmental Committee on Surveying and Mapping
"Apart from these and other similar statutory exceptions, the surface owner does own the airspace above their land in the sense that, subject to building regulations, they are fully entitled to extend their occupation of the air, for example, by building high-rise developments. However, judgements in recent cases are interpreted to mean that an owner's rights extend only as far as is necessary for the ordinary use and enjoyment of their land."