Red outline on title plan & deeds

Our title plan / deeds shows the red outline and about 1metre from rear of house (circa 1876) is a boundary wall (the neighbouring property circa 1940 is 8feet above this wall), who would own the wall?

Ellen - such details are rarely known/recorded/registered - have a red of our blog article; check any information; and discuss with neighbour as appropriate<br> <a href="https://hmlandregistry.blog.gov.uk/2018/02/27/drawing-the-line-on-boundaries/">Drawing the line on boundaries – HM Land Registry</a>