Cabinet Office, Whitehall, London
|Headquarters||70 Whitehall, London, England|
|Annual budget||£2.1 billion (current) & £400 million (capital) for 2011–12 |
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The Cabinet Office is a department of the Government of the United Kingdom responsible for supporting the Prime Minister and Cabinet of the United Kingdom. It is composed of various units that support Cabinet committees and which co-ordinate the delivery of government objectives via other departments. It currently has just over 2,000 staff, most of whom work in Whitehall. Staff working in the Prime Minister's Office are part of the Cabinet Office.
The Cabinet Office's core functions are:
The Cabinet Office has responsibility for the following at a UK national level:
Its main counterparts in the devolved nations are as follows:
Northern Ireland 
Traditionally the most important part of the Cabinet Office's role was facilitating collective decision-making by the Cabinet, through running and supporting Cabinet-level committees. This is still its principal role, but since the absorption of some of the functions of the Civil Service Department in 1981 the Cabinet Office has also helped to ensure that a wide range of Ministerial priorities are taken forward across Whitehall.
It also contains miscellaneous units that do not sit well in other departments. For example:
In modern times the Cabinet Office often takes on responsibility for areas of policy which are the priority of the Government of the time. The units that administer these areas migrate in and out of the Cabinet Office as government priorities (and governments) change.
The Cabinet Office Ministers are as follows:
|The Rt Hon. Boris Johnson MP||Prime Minister
First Lord of the Treasury
Minister for the Civil Service
Minister for the Union
|Head of government|
|The Rt Hon. Michael Gove MP||Chancellor of the Duchy of Lancaster||Advising the Prime Minister on developing and implementing government policy; driving forward government business and implementation including chairing and deputy chairing Cabinet committees and implementation taskforces; overseeing devolution consequences of EU exit; overseeing constitutional affairs and maintaining the integrity of the Union; oversight of all Cabinet Office policies|
|The Rt Hon. James Cleverly TD VR MP||Minister without Portfolio||Supporting the Cabinet Office. Leading work of Cabinet Office Brexit preparedness, and attends Cabinet.|
|The Rt Hon. Oliver Dowden CBE MP||Minister for the Cabinet Office
|Advising the Prime Minister on developing and implementing government policy; driving forward government business and implementation including chairing and deputy chairing Cabinet committees and implementation taskforces; overseeing devolution consequences of EU exit; overseeing constitutional affairs and maintaining the integrity of the Union; oversight of all Cabinet Office policies|
|The Rt Hon. Jake Berry MP||Minister of State for the Northern Powerhouse and Local Growth||Northern Powerhouse (joint minister with the Ministry of Housing, Communities and Local Government)|
|The Rt Hon. Jacob Rees-Mogg MP||Leader of the House of Commons||Organising government business in the House of Commons; working closely with the government’s Chief Whip.|
|Chloe Smith MP||Minister of State for the Constitution||Constitutional policy and democracy; propriety, ethics and transparency; knowledge management; UK Statistics Authority; Cabinet Office Parliamentary business; Cabinet Office domestic (including Cabinet Office HR, finance and security); government communications; fraud, error, debt and grants; public bodies reform|
|Kevin Foster MP||Parliamentary Secretary|
|Simon Hart MP||Parliamentary Secretary||Minister for Implementation
Supporting MCO on cross-government delivery and implementation; controls (commercial, digital, property); commercial model; cyber and resilience; Civil Service HR and Shared Services; fraud, error, debt and grants; Geospatial Commission; Government Digital Service; Government Security Group; Infrastructure and Projects Authority; Government Property; Government Commercial Function; public bodies and appointments policy
|Johnny Mercer MP||Parliamentary Under-Secretary of State||Minister for Defence People and Veterans|
The Cabinet Office also supports the work of:
Cabinet committees have two key purposes:
The main building of the Cabinet Office is at 70 Whitehall, adjacent to Downing Street. The building connects three historically distinct properties, as well as the remains of Henry VIII's 1530 tennis courts, part of the Palace of Whitehall, which can be seen within the building. The Whitehall frontage was designed by Sir John Soane and completed by Sir Charles Barry between 1845 and 1847 as the Treasury Buildings. Immediately to the west Dorset House (1700) connects the front of the building to William Kent's Treasury (1733–36), which faces out onto Horse Guards Parade. The latter is built over the site of the Cockpit, used for cock fighting in the Tudor period, and subsequently as a theatre. In the early 1960s the buildings were restored and many of the Tudor remains were exposed and repaired. Significant renovations between 2010 and 2016 converted many of the floors to open plan and created new office space. The Cabinet Office Briefing Rooms are located on this site.
The department occupies other buildings in Whitehall and the surrounding area, including part of 1 Horse Guards, as well as sites in other parts of the country.
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