It seems unlikely that this will cast any light on John Newton's situation, but by the time of the 1843 tithe records the Blubell Inn was owned by George Walton and occupied by George Walton Junior (with GW senior occupying a house at the south end of Front Street).
The Lodge (Lodge Farm) is to immediately to the east of the Bluebell Inn, owner John Fawcett.
Interestingly however, there is also a relatively important landowner in the area called Margaret
Ornsby with two tenants holding 85 and 64 acres plus some tenants with smaller holdings, including George Walton with 5 acres across two plots.
Evidence that the Ornsby family were at Lanchester Lodge around the time of the newspaper item:
baptism
26 Apr 1820 Robert Ornsby, of Lanchester Lodge, son of George (esquire) & Margaret Ornsby
burial
13 Aug 1823 George Ornsby, of Lanchester Lodge, age: 52
Durham County Advertiser 23rd August 1823
At Lanchester Lodge on the 8th inst. suddenly, aged 52, George Ornsby Esq. one of His Majesty's Justices of the Peace for this county.