A 15th-century Scottish castle with connections to the royal Stuarts has been listed for sale at £1 million, its estate agent says.

Law Castle, a restored tower house in West Kilbride, North Ayrshire, was built in 1467 as a wedding gift for Princess Mary Stuart, daughter of King James II of Scotland, and is being marketed by Savills as a private residence or holiday retreat. The property combines medieval architectural features with modern fittings and occupies a coastal setting overlooking the Ayrshire shore.

The five-storey building includes six double bedrooms and four bathrooms, the listing states. Internal features described in the sales material include a stone-built great hall with exposed timber beams, a large kitchen and dining area with flagstone floors and a historic fireplace adapted to house a double AGA, and a 360-degree wraparound balcony offering coastal and countryside views.

The property retains numerous period elements such as parapets, spiral stone staircases linking the floors and a caphouse lookout. A vaulted chamber off the great hall leads to what is identified in the listing as a former dungeon; that space is presently used as a dining room and incorporates timber benches sourced from cathedral wood, together with a bar set into the niches.

Bathrooms and toilets at the castle fuse historic and modern details, the listing says, noting features including a stone bath and keyhole window. Several bedrooms are furnished with four-poster beds and have their own fireplaces. The top floor includes a large attic space described as suitable for storage or further development.

Savills describes the building as "not just a home, but a living piece of Scottish history—restored with care, alive with character and offers a rare chance to own one of Scotland's most iconic homes." Agent Peter Walker said the restoration preserved authentic period elements while integrating modern comforts. "Law Castle stands as a testament to Scotland's architectural resilience and royal heritage," Walker said. "The restoration has preserved its authentic period features — including the spiral stone staircase, vaulted chambers, and caphouse lookout — while seamlessly integrating modern comforts. The result is a residence of exceptional character, historical gravitas and, if you imagine The Bruce, Knights Templar and full on Da Vinci Code you will not be far wrong!"

Law Castle fell into disrepair in the 19th century and was found abandoned and without a roof in 2005. It underwent a private restoration project that returned the tower to a habitable condition. The property is promoted for several uses, with the listing suggesting it could function as a private home, a holiday retreat or an investment, and noting that the local area is "welcoming" with a strong sense of community.

The agent points to the castle's accessibility: the A78 road, Glasgow Central station and Glasgow Airport are all described as less than an hour away by road. The coastal location provides access to nearby Seamill beach and views down the Ayrshire coast.

Law Castle's origins, tied to a marriage arranged by King James II, give it a place in the wider story of Scottish medieval history. The listing also references an ancestral link to Robert the Bruce through the Stuart line. The sale offers prospective buyers the opportunity to own a restored example of a medieval Scottish tower house in a coastal setting.

Savills is handling the sale and has encouraged interest from both domestic and overseas buyers. The agent did not provide further details on offers or timelines in the material accompanying the listing.