The
Architect of the Capitol,
J. George Stewart, with the approval of the
House Office Building Commission, selected the firm of
Harbeson, Hough, Livingston & Larson of
Philadelphia to design a stripped-down classical building in architectural harmony with other
Capitol Hill structures. However, while the interior design of the other House Office Buildings retains decor one would expect to see in House Office Buildings (with cherry wood paneling, brass railings, and marble floors), the Rayburn building possesses design style parallel to that of the 1960s, with chrome
push bars, clocks, and elevators, and space-age fluorescent lighting fixtures. The
Capitol Subway System, an underground transportation system, connects the building to the
Capitol. Pedestrian tunnels also connect the Rayburn building to the Capitol and to the
Longworth House Office Building. This system allows the Rayburn building to be connected to most of the Congressional office buildings on
Capitol Hill via tunnel (the
Ford House Office Building is freestanding and attached to no other structures by tunnel). For construction of the Rayburn House Office Building, the Congressional bill appropriated $2 million plus "such additional sums as may be necessary." Such additional sums eventually exceeded $99 million. Congressional leaders inserted a gymnasium into the building plans, a fact that was not publicly known at the time of construction. The gym is below the sub-basement level, in a level of the underground parking garage, and according to
The Hill, a newspaper focused on Capitol Hill, "features dozens of cardio machines outfitted with TV screens, an array of Cybex weightlifting machines and free weights." Also in the third floor basement is a shooting range run by the U.S. Capitol Police and a basketball court. ==FBI raid==