Chelsea was a borough constituency, represented in the House of Commons of the Parliament of the United Kingdom.
The constituency was created by the Reform Act 1867 for the 1868 general election, when it returned two Members of Parliament (MPs), elected by the bloc vote system of election.
Under the Redistribution of Seats Act 1885, with effect from the 1885 general election, its representation was reduced to one MP, elected by the first past the post system.
Before 1868 the area was represented in Parliament as part of the county constituency of Middlesex.
With the expansion westwards of the urban area around Westminster, the former village of Chelsea had by 1868 developed into a suburb large enough to be made a Parliamentary borough and given two seats in the House of Commons.
In 1885, the constituency became a single member seat. The Redistribution of Seats Act 1885 defined the seat as comprising the parish of St Luke, Chelsea.
In 1889, the historic county of Middlesex was divided for administrative purposes. Chelsea became part of the administrative county of London.
In the 1918 redistribution of Parliamentary seats, the Metropolitan Borough of Chelsea (created as a local government unit in 1900) was represented by one MP.
In the redistribution which took effect in 1950, the then Brompton ward of the Metropolitan Borough of Kensington was added to the existing area of the constituency.
In 1965, the London County Council area was absorbed by the new Greater London Council. The constituency was included in a new London Borough of Kensington and Chelsea, although the Parliamentary boundaries were not altered immediately.
In the redistribution that took effect in 1974, the Kensington and Chelsea, Chelsea constituency consisted of the then Brompton, Cheyne, Church, Earls Court, Hans Town, North Stanley, Redcliffe, Royal Hospital and South Stanley wards of Kensington and Chelsea.
From the 1983 redistribution, Chelsea consisted of Abingdon, Brompton, Cheyne, Church, Courtfield, Earls Court, Hans Town, North Stanley, Redcliffe, Royal Hospital and South Stanley wards of Kensington and Chelsea.
98.5% of the constituency had been in the pre-1983 Chelsea and 1.5% had been part of Kensington.
In the 1997 redistribution, Chelsea ceased to exist as a constituency. The area was included in the Kensington and Chelsea constituency, which covers the central and southern portions of the Royal Borough of Kensington and Chelsea, including the centres of both Kensington and Chelsea.
| Election | 1st Member | 1st Party | 2nd Member | 2nd Party | ||
|---|---|---|---|---|---|---|
| 1868 | Sir Charles Wentworth Dilke, Bt. | Liberal | Sir Henry Ainslie Hoare, Bt. | Liberal | ||
| 1874 | William Gordon | Conservative | ||||
| 1880 | Joseph Firth Bottomley Firth | Liberal | ||||
| 1885 | Redistribution of Seats Act: representation reduced to one member | |||||
| Election | Member | Party | |
|---|---|---|---|
| 1885 | Sir Charles Wentworth Dilke, Bt. | Liberal | |
| 1886 | Charles Algernon Whitmore | Conservative | |
| 1906 | Emslie John Horniman | Liberal | |
| Jan. 1910 | Samuel Hoare | Conservative | |
| Oct 1944 | William Sidney | Conservative | |
| 1945 | Allan Noble | Conservative | |
| 1959 | John Litchfield | Conservative | |
| 1966 | Sir Marcus Worsley | Conservative | |
| Oct. 1974 | Nicholas Scott | Conservative | |
| 1997 | ''constituency abolished: see Kensington & Chelsea | ||