By the time of the compilation of the Domesday Book in 1086, the Normans had not encroached beyond the 1066 boundaries, and Bootle was still the northern limit of their holdings in West Cumberland. Waberthwaite is not mentioned in the Domesday Book, so it appears that it was the southern limit of land held by King Malcolm III in West Cumberland, though it had been settled by Norsemen by then, or possibly it was a no-man's land remote from proper control by Malcolm III and of no value or interest to the Normans.
The Domesday Book of 1086 shows that the Normans had not expanded beyond their 1066 boundaries, with Bootle being their northern limit in West Cumberland. Waberthwaite is not mentioned in the book, possibly indicating it was either the southern boundary of land held by King Malcolm III or a remote area outside Norman control and lacking significance to them.