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Building Overview

1. Building Outline

Project name Akasaka Intercity AIR
Location Part of 5, 6, 8, and part of 9,
Akasaka 1-Chome, Minato-ku, Tokyo
Transportation Directly connected via underground passage to Tameike-sanno Station on the Tokyo Metro Ginza and Namboku Lines (connected to the Tokyo Metro Chiyoda and Marunouchi Lines at Kokkai-gijidomae Station)
Main uses Offices, apartment complex, meetings and conferences, retail stores, etc.
Site area 16,088.32m2
Total floor space 178,328.01m2
Height 205.08m(TP+214.23m)
No. of floors 38 floors above ground (penthouse: 1), 3 underground floors;
Structure Steel structure, steel-reinforced concrete structure, and reinforced concrete
Seismic control system Buckling restrained brace (unbounded brace), Tuned Viscous and Mass Dampers, Viscous Damping Device with Amplifying Mechanism
Elevators Office lower-level: 8; mid-level: 8; upper-level: 8; emergency-use: 2; other: 11 (37 in total)
Parking lot spaces 314 spaces (self-parking: 132 spaces; mechanical parking system: 182 spaces)
Completion Date August 2017
Project owner Akasaka 1-chome Redevelopment Association
Design and supervision Nihon Sekkei, Inc.
Construction contractor Obayashi Corporation

2. Equipment Outline

Power receiving system Special high-voltage 22KV, three-line spot network system
Distribution system Electric lamp: single-phase, three-wire system 200V/100V
Power socket: single-phase, three-wire system 200V/100V
Electricity capacity upgrade Spare systems can be added in the electrical rooms
Emergency power source Dual fuel gas turbine power generators 3,500kVA x2 units (Fuel: heavy oil for 72 hours; medium pressure gas for 200 hours of continuous operation is possible)
Space for power generator for tenants Dual fuel gas turbine power generators 2,000kVA x1 unit (Fuel: heavy oil for 72 hours; medium pressure gas)
Gas turbine type: 1,500VA x 2 units(Fuel: heavy oil for 72 hours)
*Oil tank installed
Shared TV reception equipment UHF, BS, CS, CATV deployment possible
(equipped only with space for installation)
Communications equipment Installation planned
(metal cables, optical cable)
Space for IT use Equipped with space for tenant-use antennae
Air conditioning heat source system District heating and cooling (DHC), Cogeneration system
Air conditioning upgrade space Equipment balcony placed on each floor
Security Security system with non-contact IC card reader

3. Tenant Area Outline

Office floors 6F to 37F (32 floors)
Total office leasable floor space 82,006.03m2
Standard floor leasable floor space 2,587.53 m2
*Leasable units within core available separately
(37F/36F: 279.64 m2, 28F: 133.16 m2)
Ceiling height 2,850mm
(special floors: 3,000mm)
Raised floor 150mm
(special floors: 300mm)
Floor loading 500kg/m2
(heavy-duty zone: 1,000kg/ m2 );
special floors: 1,000kg/m2; leasable units within core: 500kg/m2
Power socket capacity 60VA/m2
Lighting system LED lighting (Grid-type ceiling system),
standard illuminance 750lx
Air conditioning equipment Perimeter: multi duct air-conditioning system, 18 zones in 5 systems on each floor;
interior: multi duct ventilation system, 26 zones in 5 systems on each floor
*The content of this website is based on the plans as of August 2016 and is subject to change. All CG perspectives found on this website were created based on information available as of August 2016, and the facilities may vary upon completion.