Col. William McDowall I

Country house

Castle Semple House

Lochwinnoch (Renfrewshire)

Built 1st Jan 1727


Col. William McDowall bought the Castle Semple estate in 1727 and built Castle Semple House. His son and grandson William II and William III of Garthland further improved the estate, which was sold to John Harvey in 1814 (q.v.). The house, possibly by Robert Hunter of Ayr, was damaged by fire in 1924 and demolished to basement level in the 1970s.


See Stuart M. Nisbet, 'Castle Semple Rediscovered', Renfrewshire Local History Forum Journal (2009).

Further Information

Demolition date