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Allens of Mayfair was a butchers shop based in London. It opened in Mayfair in 1830 and closed in 2015. Allens Scottish beef was bred especially for them in the Cairngorm National Park. The shop ran butchery classes between 2007 and its closure.

The Church of the Immaculate Conception, Farm Street, also known as Farm Street Church, is a Roman Catholic parish church run by the Society of Jesus in Mayfair, central London. Its main entrance is in Farm Street, though it can also be accessed from the adjacent Mount Street Gardens. Sir Simon Jenkins, in his book England's Thousand Best Churches, describes the church as "Gothic Revival at its most sumptuous".

Angela Hartnett at The Connaught, also known as MENU, was a restaurant owned by Gordon Ramsay Holdings and run by chef Angela Hartnett. It was located within The Connaught in Mayfair, London. The restaurant was opened following Ramsay's successful opening of Gordon Ramsay at Claridge's, within the Claridge's hotel, which is owned by the same equity group. Ramsay had originally been asked to move Restaurant Gordon Ramsay into the space, but suggested that Hartnett should run a new operation there instead. The restaurant was awarded a Michelin star in the 2004 guide and held it until it closed in 2007.

Timothy Taylor is a modern and contemporary art gallery in Mayfair, London, owned and founded by the art dealer Timothy Taylor. The gallery represents artists and sells original and editioned artworks across different media.

The Punch Bowl, at 41 Farm Street, Mayfair, is a London public house, dating from circa 1750. It is listed as Grade II by English Heritage. It is a Georgian building and, although altered over the years, retains many period features including a dog-leg staircase, internal cornicing and dado panelling.

Hill Street is a street in Mayfair, London, which runs south-west, then west, from Berkeley Square to Deanery Street, a short approach way from Park Lane. It was developed from farmland in the 18th century. Travelling one block to the east and south sees a fall of about three metres, whereas in the other direction the land rises gradually across six main blocks to beyond the north of Marble Arch (see Hyde Park). Hill Street's homes gained fashionable status from the outset: grand townhouses seeing use, at first, as seasonal lettings (rentals) and/or longer-term London homes of nobility — later, of other wealthy capitalists as much. Twenty-two, approximately half of its town houses, are listed. Along its course, only Audley Square House departs from townhouse-sized frontage, yet this shares in the street's predominant form of domestic architecture, Georgian neo-classical. Hill Street's public house is the oldest surviving one in Mayfair.

Lower Grosvenor Street was a street in London, England, later renamed Grosvenor Street. It was at the south-eastern corner of Grosvenor Square, extending eastward towards Bond Street. Count de Melfort, in his Impressions of England, described the street as consisting of "a great number of excellent houses, the majority of which are inhabited by titled persons and affluent families". 12 Lower Grosvenor Street was home to the Alexandra Club, a private members club for women in Edwardian London. The club was founded in 1884, and closed in 1939. 16 Lower Grosvenor Street was for some time the home of the Royal Institute of British Architects. 46 was built by William Benson in 1725. In 1899 it was purchased by Sir Edgar Speyer, who had the building remodelled by Detmar Blow in 1910–11. After the first World War, it was used as the American Women's Club of London and later became the Japanese Embassy.

Mount Street Gardens is a public garden off Mount Street in the west of the Mayfair area of London, England. The gardens were created in 1889 out of a former burial ground of St George's, Hanover Square, and named after the Mount Field, an area including a fortification dating from the English Civil War named Oliver's Mount. Several structures in and adjacent to the gardens are listed Grade II on the National Heritage List for England. These include the fountain, two cisterns, and the two K2 telephone kiosks and the Portland stone gate piers with lamps at the entrance by South Audley Street.

Scott's is a seafood restaurant at 20 Mount Street, Mayfair, London. Originating as "Scott's oyster rooms" in Haymarket in the 1850s or earlier, it would become "Scott's Oyster and Supper Rooms" on Coventry Street in 1891, and moved to its present location in Mount Street in 1967. Scott's was a favourite of Ian Fleming. In 1975 it was attacked twice by the Irish Republican Army (IRA).

Macdonald House was a seven-storey Neo-Georgian style building on Grosvenor Square in Mayfair, London. It was part of the High Commission of Canada from 1961 to 2014. Macdonald House was used for the High Commission's cultural and consular functions, trade and administrative sections, immigration section, and as the High Commissioner's official residence. From 1938 to 1960, the building was the Embassy of the United States.The Government of Canada sold Macdonald House to a property developer in 2013 and vacated the building in 2014. Subsequently, Macdonald House was converted into high-end residential building named №1 Grosvenor Square.

Alexander Litvinenko was a former officer of the Russian Federal Security Service (FSB) and the KGB. In 1998, Litvinenko and several other Russian intelligence officers said they were ordered to kill Boris Berezovsky, a Russian businessman. After that, the Russian government began to persecute Litvinenko. He fled to the UK, where he criticised the Russian President Vladimir Putin and the Russian government. In exile, Litvinenko worked with British and Spanish intelligence, sharing information about the Russian mafia in Europe and its connections with the Russian government.On 1 November 2006, Litvinenko was poisoned and later hospitalized. He died on 23 November, becoming the first confirmed victim of lethal polonium-210-induced acute radiation syndrome. Litvinenko's allegations about misdeeds of the FSB and his public deathbed accusations that Putin was behind his poisoning resulted in worldwide media coverage. Subsequent investigations by British authorities into the circumstances of Litvinenko's death led to serious diplomatic difficulties between the British and Russian governments. In September 2021, the European Court of Human Rights (ECHR) ruled that Russia was responsible for the assassination of Litvinenko and ordered Russia to pay Litvinenko's wife €100,000 in damages plus €22,500 in costs. The ECHR found beyond reasonable doubt that Andrey Lugovoy and Dmitry Kovtun killed Litvinenko. The Court's decision is in line with the findings of a 2016 UK inquiry. The UK concluded that the murder was "probably approved by Mr. [Nikolai] Patrushev, then head of the FSB, and also by President Putin."

The Biltmore Mayfair is a 5-star luxury hotel located at 44 Grosvenor Square in the Mayfair area of London, England. It underwent significant renovations starting in late 2017 and reopened on 9 September 2019.