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Aeolian Hall, at 135–137 New Bond Street, London, began life as the Grosvenor Gallery, being built by Coutts Lindsay in 1876, an accomplished amateur artist with a predeliction for the aesthetic movement, for which he was held up to some ridicule. In 1883, he decided to light his gallery with electricity. An outhouse became a substation, and equipment was installed in the basement, which upset some of the neighbours, and caused others to buy electricity from him. Thus began the system of electrical distribution in use today, but the threat of fire ended these activities, and by 1890, Lindsay was forced to sell out to the Grosvenor Club. By 1903 the whole building was taken over by the Orchestrelle Company of New York (the Aeolian Company). As manufacturers of musical instruments, and especially the mechanical piano-player known as the pianola, they converted the space into offices, a showroom, and a concert hall. Aeolian Hall was a popular venue for the Russian recitalist Vladimir Rosing. The hall was even turned into an intimate opera house for one set of performances. In June 1921 Rosing presented, with director Theodore Komisarjevsky and conductor Adrian Boult, a season of Opera Intime, performing The Queen of Spades, The Barber of Seville, and Pagliacci. On 12 June 1923 the first performance of Facade, music by William Walton, poems by Edith Sitwell, took place.After the destruction of their St George's Hall studios in March 1943, the BBC took it over for the recording and broadcast of concerts and recitals. The premises are currently converted to office use but remain otherwise intact.

Sotheby's () is a British-founded American multinational corporation with headquarters in New York City. It is one of the world's largest brokers of fine and decorative art, jewellery, and collectibles. It has 80 locations in 40 countries, but maintains a significant presence in the UK.Sotheby's was established on 11 March 1744 in London by Samuel Baker, a bookseller. In 1767 the firm became Baker & Leigh, after George Leigh became a partner, and was renamed to Leigh and Sotheby in 1778 after Baker's death when Leigh's nephew, John Sotheby, inherited Leigh's share. Other former names include: Leigh, Sotheby and Wilkinson; Sotheby, Wilkinson and Hodge (1864–1924); Sotheby and Company (1924–83); Mssrs Sotheby; Sotheby & Wilkinson; Sotheby Mak van Waay; and Sotheby's & Co.The American holding company was initially incorporated in August 1983 in Michigan as Sotheby's Holdings, Inc. In June 2006, it was reincorporated in the State of Delaware and was renamed Sotheby's. In July 2016, Chinese insurance company Taikang Life became Sotheby's largest shareholder. In June 2019, Sotheby's announced that it was being acquired by French-Israeli businessman Patrick Drahi at a 61% market premium.Sotheby's Institute of Art (an educational facility), Sotheby's International Realty (real estate dealers), and RM Sotheby's (classic car dealers) are subsidiaries or partner organisations.

The Fine Art Society is a gallery based in both London and in Edinburgh's New Town (originally Bourne Fine Art, established 1978). The New Bond Street, London gallery closed its doors in August 2018 after being occupied by The Fine Art Society since February 1876, the entrance façade of which was designed in 1881 by Edward William Godwin (1833–1886).

Beaux Arts Gallery was a gallery at 1 Bruton Place, London, England. It was known as a preeminent center for promoting avant-garde art until its closure in 1965. Founded and operated by portrait sculptor Frederick Lessore in 1923, the gallery was run by his wife Helen Lessore, a painter, until it closed following her death. Prominent exhibitions at the gallery included the first solo exhibition by Christopher Wood; one of the first exhibitions of Barbara Hepworth and her husband John Skeaping, the first solo exhibition of Frank Auerbach and Leon Kossoff.Solo exhibitions of Reginald Fairfax Wells sculpture and pottery. Beaux Arts Gallery also became associated with the Kitchen Sink School (and later the School of London) and its prominent members; John Bratby, Derrick Greaves, Edward Middleditch and Jack Smith. The Lessore's son, John (born 1939), an artist in his own right, exhibited at the gallery whilst it was open. He has subsequently been appointed a trustee of the National Gallery.

Kleinwort Benson was a leading investment bank that offered a wide range of financial services from offices throughout the United Kingdom and Channel Islands. Two families, the Kleinworts and the Bensons, founded two different merchant banks in London. They merged in 1961 to create Kleinwort Benson Lonsdale, later Kleinwort Benson. Following its acquisition by Société Générale in June 2016, it was merged with SG Hambros, already a subsidiary of Société Générale, to form Kleinwort Hambros in November 2016.

The Square was a London fine dining restaurant, opened on 13 December 1991 in St James's. Since its opening, it had been co-owned by chef Phil Howard and wine expert Nigel Platts-Martin. It also earned its first Michelin star in 1994 and retained it from then on. After relocating to Mayfair in February 1997, The Square won a second Michelin star in 1998, which it retained until 2016, the same year when Howard and Platts-Martin sold the restaurant to a company held by Marlon Abela. It regained its first Michelin star in 2017. It closed on 31 January 2020, causing the restaurant to lose its star the following year.

Bond Street in the West End of London links Piccadilly in the south to Oxford Street in the north. Since the 18th century the street has housed many prestigious and upmarket fashion retailers. The southern section is Old Bond Street and the longer northern section New Bond Street—a distinction not generally made in everyday usage. The street was built on fields surrounding Clarendon House on Piccadilly, which were developed by Sir Thomas Bond. It was built up in the 1720s, and by the end of the 18th century was a popular place for the upper-class residents of Mayfair to socialise. Prestigious or expensive shops were established along the street, but it declined as a centre of social activity in the 19th century, although it held its reputation as a fashionable place for retail, and is home to the auction houses Sotheby's and Bonhams (formerly Phillips) and the department store Fenwick and jeweller Tiffany's. It is one of the most expensive and sought after strips of real estate in Europe.

The Embassy of Mexico in London is the diplomatic mission of Mexico in the United Kingdom. Mexico also maintains a building at 8 Halkin Street in Belgravia which serves as the Ambassador’s Official Residence.In 2011 a pro-Zapatista demonstration was held at the embassy, with the Mexican tricolour being replaced with the Zapatista flag.The embassy building in St George's Street, together with its neighbour, is Grade II listed.

St George Hanover Square was a civil parish created in 1724 in the Liberty of Westminster, Middlesex, which was later part of the metropolitan area of London, England. The creation of the parish accompanied the building of St George's, Hanover Square, constructed by the Commission for Building Fifty New Churches to meet the demands of a growing population. The parish was formed from part of the quite early medieval (in legal parlance called ancient) parish of Saint Martin in the Fields in the consequent Liberty of Westminster, probably one parish at the time of the Norman conquest, and in the hundred of Ossulstone. It included some of the most fashionable areas of what later became the West End of London, including Belgravia and Mayfair. Civil parish administration, known as a select vestry, was dominated by members of the nobility and landed gentry until the parish adopted the Vestries Act 1831. The vestry was reformed again in 1855 by the Metropolis Management Act. In 1889 the parish became part of the County of London and the vestry was abolished in 1900, to be replaced by Westminster City Council. The parish continued to have nominal existence until 1922. As created, it was a parish for both church and civil purposes, but the boundaries of the ecclesiastical parish were adjusted in 1830, 1835 and 1865.

The Hanover Gallery was an art gallery in London. It was opened in June 1948 by the German art expert Erica Brausen and financier and art collector Arthur Jeffress at 32A St. George's Street, W1, and closed on 31 March 1973. It was named after nearby Hanover Square. The Hanover Gallery was an important centre for modern art.

Chanel ( shə-NEL, French: [ʃanɛl] (listen)) is a French luxury fashion house founded in 1910 by Coco Chanel in Paris. Chanel specializes in women's ready-to-wear, luxury goods, and accessories and licenses its name and branding to Luxottica for eyewear. Chanel is well known for its No. 5 perfume and "Chanel Suit". Chanel is credited for revolutionizing haute couture and ready-to-wear by replacing structured, corseted silhouettes with more functional garments that women still found flattering.

St George's, Hanover Square, is an Anglican church, the parish church of Mayfair in the City of Westminster, central London, built in the early eighteenth century as part of a project to build fifty new churches around London (the Queen Anne Churches). The church was designed by John James; its site was donated by General William Steuart, who laid the first stone in 1721. The building is one small block south of Hanover Square, near Oxford Circus. Because of its location, it has frequently been the venue for society weddings.