Aberconway House, no. 38, South Street, Mayfair

Mayfair

Mayfair is an area of central London, within the City of Westminster.-History:Mayfair is named after the annual fortnight-long May Fair that took place on the site that is Shepherd Market today...

, in the City of Westminster

City of Westminster

The City of Westminster is a London borough occupying much of the central area of London, England, including most of the West End. It is located to the west of and adjoining the ancient City of London, directly to the east of the Royal Borough of Kensington and Chelsea, and its southern boundary...

, was constructed between 1920 and 1922 for the industrialist Henry McLaren, 2nd Baron Aberconway

Henry McLaren, 2nd Baron Aberconway

Henry Duncan McLaren, 2nd Baron Aberconway CBE was a British politician, horticulturalist and industrialist. He was the son of Charles McLaren, 1st Baron Aberconway and Laura Pochin.- Education :...

, in a neo-Georgian

Georgian architecture

Georgian architecture is the name given in most English-speaking countries to the set of architectural styles current between 1720 and 1840. It is eponymous for the first four British monarchs of the House of Hanover—George I of Great Britain, George II of Great Britain, George III of the United...

 style.
Aberconway House is an imposing mansion of 22788 sq ft (2,117.1 m²), with an adjoining guest house with ancillary accommodation of 8651 sq ft (803.7 m²). Both properties have a southerly aspect over and access into one of Mayfair's Secret Gardens.
The official architects were Edmund Wimperis and his partner W. B. Simpson. However, 38 South Street was in fact almost entirely designed by the young John Murray Easton who was later responsible for the Royal Horticultural Society

Royal Horticultural Society

The Royal Horticultural Society was founded in 1804 in London, England as the Horticultural Society of London, and gained its present name in a Royal Charter granted in 1861 by Prince Albert...

's New Hall of 1926 - 1928.