Price: £650,000 (USD $1.04 million)
Square Footage: 9230
Grounds: 10.65 acres
One of the older castle homes on this list, Colliston Castle was erected in 1545 on the grounds of a mansion house granted to John Guthrie and Isabella Ogilvy by Cardinal David Beaton of Arbroath Abbey in 1539. Set on more than 10 acres of gardens and woodland in keeping with its era, Colliston Castle has a number of period features. The original castle front door leads into a hallway with stone floor and barrel vaulted ceilings, the staircase has a brass hand rail, there are period fireplaces throughout, a priest hole and a turret with views overlooking the garden.