Fancy owning a modern Scottish castle which has a cinema, library, 13 bedrooms and a ballroom?

If you're not short of cash then the Cassillis Castle Estate in Ayrshire offers the chance to live like modern-day royalty.

This grand home, which was once the seat of Clan Kennedy, has been on the market for a few years and has actually dropped in price.

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Initially on the market for £5,000,000, it is now for sale at offers over £3,900,000 with Savills.

Picture: Savills

Kate Armstrong, founder of price comparison website, bought Cassillis House in 2009 for £3 million, before giving the neglected property a 21st-century makeover.

The castle, with attendant gate lodge, garden cottage and walled garden, coach house and stable block, stands in 310 acres in the South Ayrshire countryside, only a short distance from the coast.

Picture: Savills

New owners can really get a taste of the high life as the castle's rooms span five floors and include a drawing room, inner hall, dining room, ballroom, cinema, space for a gym and studio, seven principle bedrooms with en suites, a further six bedrooms and a library.

Picture: Savills

Features include: grand fireplaces, a glazed roof in the hall, an original spiral staircase - part of the Keep of Cassillis, portcullis door, panelling and cornicing.

Accessed via electronic gates, the grounds include part of the River Doon, a gate lodge, garden cottage and stable block.

Picture: Savills

The history and details of the home are described by Savills: "The Drawing Room bears a strong resemblance to William Burn's work, although it is thought that it was the work of David Bryce. Vast windows flood the room with natural light, and whilst the fireplace forms a centrepiece for the room, it is undoubtedly trumped by the fine ceiling plasterwork.

Picture: Savills

"The Inner Hall and Dining Room also have grand fireplaces, and the glazed roof in the hall is another quest for natural light.

"The spiral staircase is part of the original Keep of Cassillis, and is built clockwise to ensure an easy defence by a right-handed swordsman. Of particular note is the exquisite hollow central stone pillar.

"Nigel Tranter in ‘The Fortified House in Scotland' writes: “A detail of unusual interest is the very wide newel or centrepost of the 17th century turnpike stair, which has been found to be hollow from top to bottom, with stones projecting within to form steps, and small slits admitting light from the stairway proper”.

Picture: Savills

"It is not known what purpose this feature served, though it was probably for lighting the staircase in an otherwise darker corner of the castle. Today electric lights have replaced traditional candles or oil lamps.

"The Ballroom and adjacent Library were originally the bedroom and living quarters of the Earls of Cassillis. At almost 30' in length and 20' in width, the Ballroom is a superb room for entertaining, with windows overlooking the River Doon below.

"The original nurseries have been converted to provide a bedroom and en suite bathroom of generous proportions, but an unusual arched passageway through the original 15th century, 16' to 18' thick castle wall provides a secondary access between the rooms, designed for staff.

Picture: Savills

"The same passageway services the East and West Chintz bedrooms on the floor above. The portcullis door marks the original Norman-style entrance to the keep. From this entrance, a secret staircase (not marked on the layout plans) leads up to the East Chintz Room.

"The Bartizan bedrooms at the top of the Keep have been restored to their likely 17th century layout. The East Barizan bedroom has been restored to reflect an 18th century refurbishment with panelling and cornicing.

"In the West Bartizan bedroom a medieval vaulted ceiling was discovered and although in bad condition the shape of the ceiling has been left along with a hidden entrance to the secret room which was also revealed."

Picture: Savills

The castle is a real example of modern technology meeting traditional design, as can be seen in the well-equipped kitchen and basement rooms.

Fitted with walnut cabinets, the scullery and pantry have been revamped but still have a patterned tiled floor, reminiscent of the original.

Picture: Savills

Former store rooms in the basement have been redesigned to create an iPod controlled, seven seat cinema room complete with fully reclining seats, surround sound, Sky HD TV and a projector screen.

Picture: Savills

The basement also has space for a possible gym and studio, plus there's also a laundry room and wine cellar with vaulted ceiling.