One of South Lanarkshire's most familiar landmarks has gone up for sale, and it could be yours - for a cool half a million pounds.

Mains Castle is a 15th-century keep built in 3.8 acres of land thought to have been gifted by Robert the Bruce.

It overlooks St James Hamilton Heritage Park in East Kilbride.

It has three bedrooms, three bathrooms and two reception rooms - but one of them is a Banqueting Hall.

Luxury estate agent Savills describes the castle as having a "surprisingly practical floor space," with a "modest interior".

Mains Castle was first occupied in 1478 when Princess Euphemia Stewart married David Lindsay, who was the provost of Glasgow.

Now, the history of the building is all too prominent, with cannonball marks in the walls left over from a skirmish in 1679.

What was once the castle's guardroom is now a toilet, with a stone clad cistern and handmade copper sink. 

The castle's original flagstoned Great Hall now serves as a kitchen, with dining reserved for the Banqueting Hall on the ground floor.

Around the outside of the castle is a parapet, where residents can look over the surrounding lake.

Peter Gillespie, the castle's property agent, said: [This is] a historic and imposing castle painstakingly restored by local historian Mike Rowan in the 1970s.

"Our clients have been proud custodians of Mains Castle cherishing it's fabric and history and carrying out further improvements."

Mains Castle is available from Savills for an asking price of £495,000.