The Hart Us senate Office complex includes nine above-ground stories. The framework has 1,000,000 square feet (93,000 m2) of interior floor space, of which 333,000 square feet (30,900 m2) is functional.

As opposed to the Neoclassical building design of the Dirksen and also Russell Senate Office Complex, the Hart Senate Office Building is Modernist. To fit within the context supplied by the Dirksen and Russell buildings, Hart’s structure lines were developed to harmonize with those of the earlier frameworks as well as the brand-new structure dressed in intensely white marble from Vermont. The marble was 3 inches (7.6 cm) thick, twice the typical density for an office building, as well as used to cover also one of the most ordinary elements of the framework (such as the mechanical shed on the roofing system). More than 8,961 short lots (8,129 t) of marble were required for exterior and interior usage.

To resemble the courtyards of Dirksen and also Russell, the Hart building has a room covered by a substantial skylight. The wall surfaces of the inside of the framework, including the atrium, are clad in the exact same white Vermont marble as the outside. The room’s flooring, however, is rose-colored Tennessee marble. Walkways on the inside of the atrium give access per office suite.

The public entry to each collection is on an odd-numbered flooring, with exclusive staff entrances on even-numbered floors. Each workplace suite contains a personal office for a legislator which has outward-facing home windows and has 16-foot (4.9 m) high ceilings. Due to the structure’s layout, a workspace with the same ceilings and sights adjoins each senator’s office. Workspace in other places in the suite feeds on a major floor and a mezzanine, attached by an interior staircase and hand-made affordable custom blinds to cover the large windows. This office has uncommonly low 8-foot (2.4 m) high ceilings. All workspace is normally without columns as well as wall surfaces. A dividers system consisting of oak structures covered in sound-absorbent material, developed as well as produced by Acoustical Screen Corporation, was made for use in providing an adaptable dividers system in each workplace. These partitions were originally acquired for only a handful of offices, because of lessenings in the building’s providing budget plan. Each office likewise has an exclusive toilet.

Manhole covers in the pathways and also streets neighboring were constructed from bronze, to stay clear of unpleasant rust spots from typical iron manhole covers (the typical material). The interior lift doors were also cast in bronze, and also locations in the floors in suites, meeting rooms, as well as some public locations had detachable panels and integrated tubing which permitted the easy substitute or updating of electrical, telecoms, as well as computer electrical wiring. The cafeteria below the Dirksen Senate Office Building was increased in dimension and also expanded beneath the Hart building, which allowed the public to make use of for the first time during lunch hours.

The framework’s $137m price did not include furnishing, which Us senate professionals approximated would cost one more $32.6 million ($82,669,103 in 2017 dollars). Undefined adjustments made by Warnecke caused $4.2 million ($10,650,621 in 2017 bucks) in cost savings, nevertheless. These enabled particular products to be restored, such as the huge hearing space, complementary location carpeting, vertical blinds, and the gym devices (now approximated to set you back just $736,000 ($1,866,394 in 2017 dollars)). The cost savings likewise allowed the Designer of the Capitol to construct a tennis court on the building’s roofing.

Below the framework is a 350-car parking lot.

The building’s design deliberately spared the nearby Sewall-Belmont house, a historical framework that works as the head office for the National Lady’s Party as well as a museum concerning the ladies’ suffrage activity.