4-3-20 Toranomon, Minato-ku, Tokyo
20 fl. above the ground, 4 fl. below the ground and one-story rooftop structure
Kamiyacho Sta.
·Directly connected to the station
(Hibiya Line)
Roppongi-itchome Sta.
·8 min on foot from Izumi Garden Tower Exit (Namboku Line)
Onarimon Sta.
·10 min on foot from A5 Exit
(Toei Mita Line)
Lot area
4,199.94m2 （approx. 45,210 sq. ft.）
Total floor area
40,733.71m2 （approx. 438,470 sq. ft.）
Number of floors
20 fl. above the ground, 4 fl. below the ground and
one-story rooftop structure
Building structure
Steel-framed building with partially steel-framed reinforced concrete and reinforced concrete structure
Parking
Self parking for 119 cars
Building completed
March 1993
Air conditioning
[Around the core of the building]
Central air-conditioning system on each floor with single duct system （variable-volume air system）
[Around the perimeter]
Convectors with wall-through heat pump units
Typical ceiling height
2,700mm
Typical ceiling specification
Ceiling system with louvered lighting fixtures laid out on a grid
