Llanvair Grange is a small country house of 2-3 stories. The main block of the house is in the late-Georgian classical style. The broad central porch was added c1920, and has a square-headed entrance with moulded architrave, Doric columns and round-headed side windows The parapet hides the very low-pitched hipped roof and at both ends of the front the corners are set back Behind this front block the house is mainly two storeys.

Source: CADW listed buildings database.

RCAHMW, 15th January 2008.