Law Castle is situated on the lower slopes of Law Hill in West Kilbride, only a short walk (about 200m) from the railway station. The castle is a simple rectangular structure with a sloped roof and several large chimneys protruding at each side.
It was built in the 15th century for King James III's sister Mary.
In the late 1980s it was restored and fully renovated by the Phillips family - co-ordinated by Dr Anthony Philip Phillip Phillips. It was built as a family home for himself, his wife, his daughter and his grandson. It was a project in which he designed floor plans and strategic structural plans for the beams in the roof himself whilst keeping the home's originality and authentic Keep castle feel.