Mount Stuart House on the east coast of the Isle of Bute, Scotland is a Neo-Gothic country house with extensive gardens. It was developed from an earlier house by the 3rd Marquess of Bute and his architect, Sir Robert Rowand Anderson.

The house is the seat of the Stuarts of Bute, derived from the hereditary office "Steward of Bute" held since 1157. The family are direct descendants of Robert the Bruce whose daughter Marjorie married then "Steward of Bute" Walter, in 1315. Their son, King Robert II of Scotland, became the first Stuart King.

The original house was built in 1719 by the 2nd Earl of Bute, but rebuilt by the 3rd Marquess of Bute following a fire on 3 December, 1877. The main part of the present house is a flamboyant example of 19th century gothic architecture built in a reddish brown stone. Mount Stuart's major features include the colonnaded Marble Hall at the centre of the main block and the Marble Chapel, which has an elaborate spired tower which is the tallest part of the building (not visible on photo right). Two earlier wings in a strikingly different style survive. They are much smaller in scale, have Georgian style sash windows and are painted white.

Entrusted to the current Marquess of Bute, known as Johnny Bute, it has an award-winning contemporary Visitor Centre (opened 2001) that tells the story of the family and estate. The grounds and interiors host a programme of contemporary visual arts.

Top fashion designer Stella McCartney's 30 August 2003 wedding to publisher Alasdhair Willis was held at Mount Stuart House.

• Official site