Lords Commissioners of the Treasury concomitant, so much so that the Prime Minister's official residence, 10 Downing Street, is in fact the official residence of the First Lord of the Treasury, which title is named on the letter box. Salisbury, as a marquess of vast independent wealth, had no use of an official residence, instead living in his grander town house at 20 Arlington Street in St James's, and could instead bestow it as a perquisite to other ministers, along with the First Lordship itself. Other positions have been linked to the Prime Ministership as well. Continuously since 1968, when the position was created by
Lords Commissioners of the Treasury Harold Wilson, the Prime Minister has also served as Minister for the Civil Service. The adoption of this additional position was directly linked to reforms to HM Treasury, being created when responsibilities for the pay and management of the civil service was transferred from the Treasury to a new Civil Service Department. Since the Prime Minister was a Lord Commissioner of the Treasury, prior to the reform he had had ex officio oversight of these portfolios, but it was felt more proper for the civil service to be held outside of a particularised department. Nevertheless in recognition of the primary