A beautifully appointed three-storey classical mansion, rendered in pink, Logan House lies 1½ miles (2.5 km) north of Port Logan in the South Rhins of Galloway. Built in 1702 for Colonel Andrew McDouall, extended 1848-51 and remodelled in 1874-8 first by Scottish baronial architect David Bryce (1803-76) but returned considerably to its original appearance in 1952 for banker Olaf Hambro (1885 - 1961), who bought the house in 1949. Today it comprises three bays, of which the central is pedimented, and the only evidence of Bryce's work remaining is the service wing at the rear. A bow projects from the full height of the north wall, but a similar structure on the south side was removed by Bryce.
Adjacent is the Logan Botanic Garden and the scant remains of Logan Tower (or Balzieland Tower), which was gutted by fire c.1500.