Carlton House Terrace

Carlton House Terrace is a street in the St James's district of the City of Westminster in London. Its principal architectural feature is a pair of terraces of white stucco-faced houses on the south side of the street overlooking St. James's Park. These terraces were built on Crown land between 1827 and 1832 to overall designs by John Nash, but with detailed input by other architects including Decimus Burton. They took the place of Carlton House, and the freehold still belongs to the Crown Estate.

The land on which Carlton House Terrace was built had once been part of the grounds of St James's Palace, known as "the Royal Garden" and "the Wilderness". The latter was at one time in the possession of Prince Rupert of the Rhine (cousin of Charles II), and was later called Upper Spring Garden.

From 1700 the land was held by Henry Boyle, who spent £2,835 on improving the existing house in the Royal Garden.Queen Anne issued letters patent granting Boyle a lease for a term of 31 years from 2 November 1709 at £35 per annum. Boyle was created Baron Carleton in 1714, and the property has been called after him since then, although at some point the "e" was dropped.

On Carleton's death the lease passed to his nephew, the architect and aesthete Lord Burlington, and in January 1731 George II issued letters patent granting Burlington a reversionary lease for a further term of 40 years at an annual rent of £35. By an indenture dated 23 February 1732 the lease was assigned to Frederick, Prince of Wales, eldest son of George II, who predeceased his father, dying in 1751; his widow, Augusta, continued living in the house, making alterations and purchasing an adjoining property to enlarge the site. She died in 1772 and the house devolved to her son, George III.

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