They are related to tower houses, which occur in considerable numbers in Ireland and Scotland and to a much lesser extent in England.
Smith distinguished a smaller group of house which only have one storey above an undercroft, The best example of this type is Carswell in Pembrokeshire.
These were built after 1427 when a statute was passed that any of the King’s liege living within The Pale would be paid £10 for building a house of a minimum size.
[7]” Taller tower houses, such as the Old Rectory, Angle, are likely to have been built before 1400, as they have arrow slits, rather than an early form of gun port, which would have been used after that date.
At Eastington and Bonville Court, the tower which was built against a hall, is rectangular, rather than square.