> There are only "title plans" held by HM Land Registry, that may or may not include information about who owns the wall and exactly what delineates the propert

> There are only "title plans" held by HM Land Registry, that may or may not include information about who owns the wall and exactly what delineates the property line. Yeah the UK has been introducing a land registry, but as of 2019, 15% of the land was still not registered. https://hmlandregistry.blog.gov.uk/2019/05/30/registering-land-for-more-than-150-years/ https://hmlandregistry.blog.gov.uk/2019/05/30/registering-la... In continental europe, Napoleon can be attributed to many of the land registries, but England never got conquered by him :).