At that time, Hugh Percy, 2nd Duke of Northumberland asked the hall's owner, Henry Ellison, for permission to erect a monument on the field to honour his ancestor who died during the Battle of Otterburn.
Ellison denied the request and raised a monument himself which included an obelisk, possibly an architrave removed from Otterburn Hall's kitchen fireplace, which was placed into a socketed battle stone.
The Otterburn Training Area, established in 1911 and owned by the Ministry of Defence, is nearby and is the second-largest live firing range in the country.
The adjacent estate property called The Coach House, trading as a quality restaurant with bedrooms, also ceased business in July 2017 but reopened with new management the same year.
[12] The Lodge Village, now under private plot ownership, was in July 2017 being extended, adding 40 more units, in a style similar to a caravan park layout.
Renovation occurred in 1905 for Sir Charles Morrison Bell including the addition of a porch which accentuates the facade of the hall.