Although much altered over the centuries and now looking very much like a mansion house, Newton House has at its core a much older defensive structure.

Dating from the late 17th century, the main building consists of an oblong with a vaulted basement. To the east of the house – and attached to it by a single wall – is a circular tower dating back to the 16th century, the lower storey of which is also vaulted. The upper chamber of the tower features a dovecot, however the fact that its walls are a metre thick, and that there is a gun-loop opening to the south, suggest a more defensive use in the past.