Horse Guards is a large grade I listed building in the Palladian style between Whitehall

Whitehall

Whitehall is a road in Westminster, in London, England. It is the main artery running north from Parliament Square, towards Charing Cross at the southern end of Trafalgar Square...

 and Horse Guards Parade

Horse Guards Parade

Horse Guards Parade is a large parade ground off Whitehall in central London, at grid reference . It is the site of the annual ceremonies of Trooping the Colour, which commemorates the monarch's official birthday, and Beating Retreat.-History:...

 in London

London

London is the capital city of :England and the :United Kingdom, the largest metropolitan area in the United Kingdom, and the largest urban zone in the European Union by most measures. Located on the River Thames, London has been a major settlement for two millennia, its history going back to its...

, England

England

England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...

. It was built between 1751 and 1753 by John Vardy

John Vardy

John Vardy was an English architect attached to the Royal Office of Works from 1736. He was a close follower of the neo-Palladian architect William Kent....

 to a design by William Kent

William Kent

William Kent , born in Bridlington, Yorkshire, was an eminent English architect, landscape architect and furniture designer of the early 18th century.He was baptised as William Cant.-Education:...

. The building was constructed on the site of the Guard House of the old Whitehall Palace, which had been destroyed by fire in 1698. The palace's tiltyard

Tiltyard

A tiltyard was an enclosed courtyard for jousting . Tiltyards were a common feature of late medieval castles and palaces...

became the exercise ground of Horse Guards Parade

Horse Guards Parade

Horse Guards Parade is a large parade ground off Whitehall in central London, at grid reference . It is the site of the annual ceremonies of Trooping the Colour, which commemorates the monarch's official birthday, and Beating Retreat.-History:...

, located behind the Horse Guards building.

Horse Guards Road runs north-south on the western boundary of the parade ground, while Horse Guards Avenue

Horse Guards Avenue

Horse Guards Avenue is a road in the City of Westminster, London, linking the major thoroughfares of Whitehall and Victoria Embankment, to the east of the Horse Guards building and parade area. It is not to be confused with Horse Guards Road, which is on the opposite side of the Horse Guards...

 runs east from Whitehall on other side of the building, to Victoria Embankment

Victoria Embankment

The Victoria Embankment is part of the Thames Embankment, a road and river walk along the north bank of the River Thames in London. Victoria Embankment extends from the City of Westminster into the City of London.-Construction:...

.

The building was the headquarters of the British Army

British Army

The British Army is the land warfare branch of Her Majesty's Armed Forces in the United Kingdom. It came into being with the unification of the Kingdom of England and Scotland into the Kingdom of Great Britain in 1707. The new British Army incorporated Regiments that had already existed in England...

's general staff

General Staff

A military staff, often referred to as General Staff, Army Staff, Navy Staff or Air Staff within the individual services, is a group of officers and enlisted personnel that provides a bi-directional flow of information between a commanding officer and subordinate military units...

 and served as the offices of the Commander-in-Chief

Commander-in-Chief

A commander-in-chief is the commander of a nation's military forces or significant element of those forces. In the latter case, the force element may be defined as those forces within a particular region or those forces which are associated by function. As a practical term it refers to the military...

 of the British Army until the post was abolished in 1904. Horse Guards subsequently became the headquarters of two major Army commands: the London District

London District (British Army)

London District is the name given by the British Army to the area of operations encompassing the Greater London area. Established in 1870 as Home District, it was re-formed in 1905 as London District to be an independent district within the larger command structure of the army, and has remained so...

 and the Household Cavalry

Household Cavalry

The term Household Cavalry is used across the Commonwealth to describe the cavalry of the Household Divisions, a country’s most elite or historically senior military groupings or those military groupings that provide functions associated directly with the Head of state.Canada's Governor General's...

. The building is the formal entrance to St. James's Palace

St. James's Palace

St. James's Palace is one of London's oldest palaces. It is situated in Pall Mall, just north of St. James's Park. Although no sovereign has resided there for almost two centuries, it has remained the official residence of the Sovereign and the most senior royal palace in the UK...

 via St. James's Park

St. James's Park

St. James's Park is a 23 hectare park in the City of Westminster, central London - the oldest of the Royal Parks of London. The park lies at the southernmost tip of the St. James's area, which was named after a leper hospital dedicated to St. James the Less.- Geographical location :St. James's...

 (though this is now entirely symbolic). Only the monarch

Monarch

A monarch is the person who heads a monarchy. This is a form of government in which a state or polity is ruled or controlled by an individual who typically inherits the throne by birth and occasionally rules for life or until abdication...

 is allowed to drive through its central archway, or those given a pass (formerly made of ivory

Ivory

Ivory is a term for dentine, which constitutes the bulk of the teeth and tusks of animals, when used as a material for art or manufacturing. Ivory has been important since ancient times for making a range of items, from ivory carvings to false teeth, fans, dominoes, joint tubes, piano keys and...

).