Amazingly the HM Land Registry [0] doesn't actually identify the ownership of all land in the UK. Specifically, land only needs to be registered when it is sold

Amazingly the HM Land Registry [0] doesn't actually identify the ownership of all land in the UK. Specifically, land only needs to be registered when it is sold or transferred in certain ways - which puts it on the system, as it were. But there is no legal compulsion to register land that doesn't meet these transfer criteria, and such land won't be returned in a public search of the Land registry, especially for land that was last transferred before 1990 [1] when the current registration triggers were defined. [Edit] Actually establishing who does own England is a somewhat challenging topic; see [2] for an example of one such attempt, and the list of sources that needed to be consulted. [0] https://en.wikipedia.org/wiki/HM_Land_Registry https://en.wikipedia.org/wiki/HM_Land_Registry [1] https://www.gov.uk/registering-land-or-property-with-land-registry https://www.gov.uk/registering-land-or-property-with-land-re... [2] https://map.whoownsengland.org/ https://map.whoownsengland.org/