The role and status of the Prime Minister’s Office
The status of the Prime Minister’s Office (“Number 10”) is opaque.
The gov.uk website description says “the office helps the Prime Minister to establish and deliver the government’s overall strategy and policy priorities, and to communicate the government’s policies to Parliament, the public and international audiences.”
Nominally, it is a part of the Cabinet Office, yet it is largely operationally distinct. Its functional relationship with the Cabinet Office is unclear.
The Public Administration and Constitutional Affairs Committee is holding an inquiry into the role and status of Number 10.