Sheraton Grand London Park Lane Hotel

The Junior Athenaeum Club was a gentlemen's club in Piccadilly, London, from 1864 to the 1930s, with similar aims to the Athenaeum Club.

The Athenaeum is a family-owned five-star hotel overlooking Green Park in Piccadilly, London.

Down Street, also known as Down Street (Mayfair), is a disused station on the London Underground, located in Mayfair, west London. The Great Northern, Piccadilly and Brompton Railway opened it in 1907. It was latterly served by the Piccadilly line and was situated between Dover Street (now named Green Park) and Hyde Park Corner stations. The station was little used; many trains passed through without stopping. Lack of patronage and proximity to other stations led to its closure in 1932. During the Second World War it was used as a bunker by the Prime Minister, Winston Churchill, and the war cabinet. The station building survives and is close to Down Street's junction with Piccadilly. Part of it is now converted to a retail outlet. London Transport Museum has been running guided tours of the station through its "Hidden London" programme since 2016. The tour covers the history of the site using archives from the museum's collection, with a focus on its Second World War connection.

Eaton Square School is a co-educational and independent day school.

The St James's Club was a London gentlemen's club which operated between 1857 and 1978. It was founded by two leading diplomats and its members continued to be largely diplomats and authors. It was first established in Charles Street and moved to 106 Piccadilly by 1868. In the final quarter of the twentieth century many gentlemen’s clubs of London suffered from declining membership, and in 1978 the St James's Club merged with Brooks's Club and vacated its premises.

The Bachelors' Club was a London gentlemen's club in the late nineteenth and early twentieth century, now defunct. As the name suggests, membership was only open to bachelors. The club had a reputation for having a markedly younger membership than many other Edwardian clubs, and given the high-spirited antics which sometimes ensued on the premises, it was cited (along with Buck's and the Bath Club) as an influence on the fictional Drones Club, in some of P.G. Wodehouse's earlier stories. A persistent rumour circulated throughout its existence, and reached wider circulation in the 1920s, that some of its membership were gay - then both illegal and publicly frowned upon – and it soon became superseded by Buck's as the young man's club in London, being forced to close shortly thereafter. The club was first situated at 11 Hamilton Place, then at 8 South Audley Street, and finally it amalgamated with the St. James's Club in 1946 at 106 Piccadilly. Famous members included John Buchan, Field Marshal Sir Herbert Kitchener, and Capt. Berkeley Levett, a witness in the Royal Baccarat Scandal.

The Isthmian Club, founded in 1882, later had premises at 105, Piccadilly, London, in a grand five-bay house that had belonged to Sir Julian Goldsmid, Bt. The non-political club was open to "Gentlemen who have been educated at one of the universities or public schools, and for officers of the army and navy," who were voted in by ballot of the steering committee. Its members were active in rowing, cricket and other sports.The Isthmian League, still existing as a prominent regional football league covering London and South East England featuring semi-professional and amateur clubs, was founded in 1905 by amateur clubs in the London area. The club's Account Book, 1889–97, is conserved by the Westminster City Council (Acc. no. 776).

The Cavalry and Guards Club is a London gentlemen's club, at 127 Piccadilly, situated next to the RAF Club.

The Cavalry Club was a London gentlemen's club, which was established in 1890. In 1975, it merged with the Guards' Club, and became the Cavalry and Guards Club, which still exists today. When the Cavalry Club first occupied the site, on Piccadilly in Mayfair, in 1890, it was a proprietary club owned by an officer in the 20th Hussars, but five years later, ownership passed into the hands of its members and it became a members' club. They raised the funds to build an entirely new clubhouse, which was designed by B. N. H. Orphoot of Mewes and Davies and completed on the site in 1908.Like many London clubs, both the Cavalry Club and the Guards' Club went through a period of serious financial hardship in the 1970s. The solution proposed was a merger. The Guards' Club was due to close anyway, so their premises closed in 1975, and their 800 members joined the renamed Cavalry Club, also bringing numerous objets d'art with them.

The Junior Constitutional Club was a political London gentlemen's club founded in 1887, and located at 101 Piccadilly. It was aligned to the Conservative party, with members having to pledge support. Heavy over-subscription for the Constitutional Club which had opened in 1883 led to the creation of a further mass-membership Conservative club. By 1890, it was reported by Whittakers Almanack to have 10,000 members, making it one of the largest clubs in history, but this level of membership proved to be short-lived; by 1890 its membership had halved to around the 5,500 level, and by 1900 it was still slightly further down, at 5,000. It had closed by 1904, when its building was taken over by the pro-Tariff Reform United Empire Club.

The Embassy of Japan in London is the diplomatic mission of Japan in the United Kingdom. The embassy occupies a large Victorian building on Piccadilly opposite Green Park, which is Grade II listed. It was once the former Junior Constitutional Club, which was the first building in London to have its exterior entirely clad in marble.

The Embassy of Panama in London is the diplomatic mission of Panama in the United Kingdom.