A fortified house of two or three storeys, the lower floor being used to house animals and the upper for domestic use.
 

A manor house, which was granted a royal licence to crenellate.
 

An uncrenellated, strong, fortified dwelling, of between two and four storeys. Occupied only in times of trouble built mainly in the border country of the North from the mid 14th to the 17th century.
 

A multi-storey, fortified hall house with one of the crosswings being raised in the form of a crenellated tower. Permanently occupied, they date from the mid 14th to the 17th century and are found mainly in the border counties of the North of England.