The early years of the 18th century (the Georgian period) Grosvenor Square was laid out in Mayfair as part of the Grosvenor family's development of that area.
The Grosvenor estate represented different building/architectural styles rather than good building practice. Its buildings however did not lack impressiveness or magnificence - just uniformity.
Planned in 1720, the Square was built between 1725 and 1731.
The creation of the garden square (actually oval) was a purposeful act carried through successfully by Sir Richard Grosvenor as a garden for the residents.
There was a statue, an equestrian effigy of King George I, made of lead and wholly gilded, on a stone pedestal. The statue was erected, facing east, in about August 1726. It was subjected to malicious damage in March 1727, but was promptly repaired.
By 1926 the central garden had taken on the character usual in London's residential squares, with great trees irregularly grouped, and a tennis court. The pedestal on which the statue of King George 1 remained whilst the statue itself had disappeared some years earlier (reported missing in 1828). The pedstal remained in place until the gardens were redesigned and arranged in 1948.
In 1936 a proposal from the architect Fernand Billerey, then interesting himself in redevelopment round the Square, that an underground car-park should be made in the centre was not pursued by the Estate, however, it is widely rumoured that the Americans have developed partially under the park for their own secretive purposes.
Many of the buildings surrounding the square have been rebuilt several times since their original construction and many were rebuilt following the 1939–45 war. Today, after still further reconstruction, very few of the buildings are private residences.
In 1948 the square became a public place rather than the garden of a London square. The establishment of the American embassy in the Square in 1938 had been followed by a very extensive occupation of houses during and after the 1939–45 war by American civil and military services. It was therefore chosen as the site of the British memorial to President Roosevelt, unveiled by Mrs. Roosevelt in April 1948.














