The Penninghame House was sold to its current owners in 2000 by the Scottish Prison Service.
Source: Knight Frank, BBC News
The prison provided rehabilitation courses for its prisoners and provided nearly 50 jobs to the local community.
Source: BBC News
The mansion was built in 1869, while the office building and dining room are believed to have been built around 1700.
Source: Knight Frank
The property includes a 13-bedroom mansion, five additional houses, a stable block, equestrian facilities, nearly 5,000 feet of river frontage, and farmland.
Source: Knight Frank
The estate spans around 100 acres and boasts breathtaking views of parkland and gardens.
Source: Knight Frank
The current owners spent five years renovating the property. They added modern finishes including a kitchen with light-colored cabinets and wood floors.
Source: Knight Frank
To preserve its history, the owners decorated the mansion with Victorian furniture and art.
Source: Knight Frank
The entire estate is for sale for $3.3 million (£2.6 million). It is represented by estate agency Knight Frank.
Source: Knight Frank
