The secretary of administration shall be responsible for the maintenance, repair and upkeep of any buildings, the charge, care, management and control of which is conferred by law upon the secretary. Notwithstanding the foregoing provisions of this section, maintenance, repair and upkeep including changes and improvements in space and facilities in the state capitol building assigned to the legislature and staff offices, departments and agencies thereof shall be accomplished and conducted in accordance with instructions or approval of the legislative coordinating council.