Leconfield House
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| Leconfield House | |
|---|---|
.jpg) | |
 Interactive map of the Leconfield House area | |
| General information | |
| Location | Curzon Street, London |
| Coordinates | 51°30′24″N 0°09′00″W / 51.50659°N 0.15008°W / 51.50659; -0.15008 |
| Completed | c. 1939 |
| Technical details | |
| Floor count | 7 |
Leconfield House is a building in Mayfair, London. It was the headquarters of the Security Service (MI5) from 1945 to 1976.
Early history
The site at the junction of South Audley Street and Curzon Street was occupied in the second half of the 18th century, all of the 19th century and the first part of the 20th century by Chesterfield House, which was built in 1749 for Philip Stanhope, 4th Earl of Chesterfield.[1] In 1869 Chesterfield House was purchased by the City of London merchant Charles Magniac, who considerably curtailed the grounds in the rear, and erected a row of buildings overlooking Chesterfield Street, named Chesterfield Gardens; the first occupier at No. 9 Chesterfield Gardens was Henry Wyndham, 2nd Baron Leconfield.[2]
After Chesterfield House was demolished in 1937, part of the site was used for the construction of Leconfield House, named after Lord Leconfield, who had died in 1901. The new building, completed in 1939, served as the operational headquarters of London District throughout the Second World War.[3]
Occupancy by MI5
The structure went on to be occupied by the Security Service (MI5) in 1945; by 1969, when Stella Rimington arrived, it was "dreadfully run down....the inside had not been painted in an age..."[4] The headquarters of MI5 remained at Leconfield House until 1976, when it moved to 140 Gower Street.[3]
Later uses
The building, which has since been substantially rebuilt, is now occupied by various businesses including that of Robert and Vincent Tchenguiz.[5] In May 2020, Robert Tchenguiz submitted plans to Westminster City Council to convert the building into a 65-bedroom private members' hotel. He had bought the building for his Rotch property business in 2004 for about £140 million.[6] The submitted plans were refused permission by the Council, and Tchenguiz's subsequent appeal against that decision also failed.[7] In October 2022 Tchenguiz lodged a further appeal.[8] Meanwhile, in December 2025, former prime minister, Liz Truss, launched a campaign to recruit founder members for a new private members' club, to be called "The Leconfield", which would be accommodated within the proposed private members' hotel.[9][10][11]
References
- ↑ Walford, Edward (1878). 'Mayfair', in Old and New London. Vol. 4. London. pp. 345–359. Retrieved 15 February 2017.
- ↑ Mitton, Geraldine Edith (2010). Mayfair, Belgravia, and Bayswater – The Fascination of London. Nabu Press. ISBN 978-1141289455.
- 1 2 "The Secret Architecture of London". Geocities. Retrieved 18 February 2017.
- ↑ Rimington, Stella (2002). Open Secret: The Autobiography of the Former Director-General of MI5. Arrow. ISBN 978-0099436720.
- ↑ "How Kaupthing's dance of debt with Tchenguiz brothers ended in £2bn ruin". The Guardian. 4 February 2011. Retrieved 15 February 2017.
- ↑ Prynn, Jonathan (11 May 2020). "MI5's former headquarters in Mayfair to be high-end hotel". Evening Standard. Retrieved 21 May 2020.
- ↑ "Download Document" (PDF). cornerstonebarristers.com. Retrieved 17 August 2022.
- ↑ Norman, Paul (21 October 2022). "Tchenguiz Goes to War With Planning Inspectorate Over Mayfair 'MI5' Home Hotel Plans". CoStar News. Retrieved 20 November 2022.
- ↑ "'It's rather rude': Truss accused of trying to poach members of rival Tory club". The Guardian. 19 December 2025. Retrieved 21 February 2026.
- ↑ "Millionaire neighbours vent anger over Liz Truss's £500k private members club in MI5's former Mayfair offices". The London Evening Standard. 24 January 2026. Retrieved 21 February 2026.
- ↑ "The W1 set is up in arms about Liz Truss's roof terrace. But what is a members' club without one?". Country Life. 12 February 2026. Retrieved 21 February 2026.