[3] The new building was constructed from rubble stone with a single tower with a parapet and a spiral-stair turret, with an adjacent hall.

[2] The hall was 60 feet long and 42 wide (18 metres by 13 metres), but was largely remodelled in 1604; the new hall is a single space, whereas it was probably originally subdivided, and additional windows were added.

[2] Subsequent work was conducted in the 1670s to give the property a grander appearance.

[1] Branthwaite Hall was restored between 1985 and 1986 by the National Coal Board, which converted the property into offices.

[4] It is considered by historian Anthony Emery to be "one of the best-preserved early houses in Cumbria".