Press Releases（Archive）
FY2012 - FY2003

Construction Starts on Tokyo Station Yaesu Development Project

East Japan Railway Company
Mitsui Fudosan Co. Ltd.
Kashima Yaesu Development Corporation
Kokusai Kanko Kaikan Co. Ltd.
Nippon Oil Corporation

September 10, 2004

In a joint development project, JR East, Mitsui Fudosan, Kashima Yaesu Development, Kokusai Kanko Kaikan, and Nippon Oil are undertaking the renovation of the Yaesu side of Tokyo station with the aim of creating a new face for the nation's capital. The area surrounding Tokyo station, in which the project site is located, has been designated for development as an urban base for international activity. Designed to improve the business, commercial and exchange functioning of the Yaesu side of Tokyo station, the joint development project is paired with a partner project that will completely rework the Yaesu-side station plaza. These two projects will contribute to renewed development of urban infrastructure and produce a ripple effect in urban renewal on the surrounding areas.

High-rise twin towers connected by a central wing comprised of a pedestrian deck covered by a large awning will be constructed on the north and south sides of the Yaesu-side station plaza.
The Yaesu side of Tokyo station will form an "entryway to the future" with an innovative, advanced, and cutting-edge urban space created by twin towers, built with liberal amounts of glass, and connected by a bright expansive central wing covered by a large awning.
In line with "the regulations for special dimension ratio applied area," permitted space not used by the Tokyo station Marunouchi station building will be transferred and incorporated into the development project.
State-of-the-art office space will be provided on the upper floors of the north and south towers to meet every need a tenant may have in conducting business from the Yaesu side of Tokyo station.
The Daimaru Tokyo store that currently occupies the existing Tetsudo Kaikan building will be relocated to the lower floors (B1 - 14th floor) of the north tower.
Station facilities and shops will be located along the central wing for a bustling pedestrian network on the ground and deck passage levels.
Construction will be divided into two distinct phases. During Phase I, the high-rise twin towers will be constructed and the Daimaru Tokyo store will be relocated to the north tower. During Phase II, the Tetsudo Kaikan building will be dismantled, after which the central wing (pedestrian deck passage, large awning, etc.) will be constructed and the number of lower floors in the north tower increased.
The total projected cost of development is roughly 130 billion yen (this does not include the cost of land and other project expenses to be born by the individual companies involved).
Total project expense and ownership is: East Japan Railway Company 60.2%, Mitsui Fudosan Co. Ltd. 18.8%, Kashima Yaesu Development Corporation 10.2%, Kokusai Kanko Kaikan Co. Ltd. 6.0%, and Nippon Oil Corporation 4.8%.
This project, paired with the reworking of the Yaesu-side station plaza (extending the depth of the current station plaza which suffers from traffic congestion, enhancing its transport node function, and creating pedestrian space with abundant greenery), will create a symbolic cityscape befitting the nation's capital.

Facilities Outline

	South Tower	North Tower/Central Wing
	South Tower	Central Wing	North Tower
Site	Soto 1-208-5 Yaesu Chuo-ku and 1-1-44 Marunouchi, Chiyoda-ku, Tokyo
Construction period	Phase I	Phase II	Phase II	Phase I
Plot area	5,229.54 m²	14,439.18 m²
Building area	3,717.09 m²	12,795.01 m²
Total floor area	140,168.07 m²	216,543.47 m²
Building height	200.0 m ^*1	27.0 m	70.0m	200.0 m ^*1
No. of floors ^*2	42 above-ground 4 underground	4 above-ground 4 underground	14 above-ground 4 underground	43 above-ground 4 underground
Main uses	Offices	Station facilities and shops	Shops	Offices and shops
Office lease space	Approx. 75,000 m²	None	None	Approx. 63,000 m²
Department store sales space	None	None	Approx. 45,000 m²
Non-department store shop space	Approx. 1,000 m²	Approx. 2,000 m²	None	None
Building owners	East Japan Railway Company Kashima Yaesu Dev. Corp. Nippon Oil Corp.	East Japan Railway Company Mitsui Fudosan Co. Ltd. Kokusai Kanko Kaikan Co. Ltd.
Building owners	(Office space owned by all companies; shops, including department store, owned by East Japan Railway Company) ^*3
Bldg. structure	Steel frame structure, partial steel frame reinforced concrete/ reinforced concrete structure
Principal regulations	• Sougou Sekkei Seido (regulation of comprehensive design) • Tokurei Yousekiritsu Tekiyou Kuiki Seido (regulation for special dimension ratio applied area) • Rentan Kenchikubutsu Sekkei Seido (regulation for construction of connected buildings)
Developers	Consortium formed by Nikken Sekkei Co. Ltd. and JR East Design Corporation
Design architects	Murphy & Jahn, Inc. ^*4

*1	The Building Standard Law allows for a building height of 200 m and a maximum height of 205 m.
*2	Number of floors determined according to the Building Standard Law.
*3	North ower office space, including that owned by East Japan Railway Company and Kokusai Kanko Kaikan Co. Ltd., will be leased to tenants by Mitsui Fudosan Co. Ltd. South tower office space will be leased by the owners (East Japan Railway Company, Kashima Yaesu Development Corporation, and Nippon Oil Corporation).
*4	Represented by Helmut Jahn Born in 1940 in Germany, Jahn is an architect known for his unique spatial expression and use of glass for a transparent feel. Most notable works: Sony Center (Berlin, 2000), Post Tower (Bonn, 2003), New Bangkok International Airport (Bangkok, to open in 2005)

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Construction Phase I

	South Tower	North Tower Phase I
Building owners	East Japan Railway Co., Kashima Yaesu Developmen Corp., Nippon Oil Corp.	East Japan Railway Co., Mitsui Fudosan Co. Ltd.
Developer/supervisor	JR East Design Corporation	Nikken Sekkei Co. Ltd. and JR East Design Corporation
Builders	Tokyo station Yaesu-side development project south tower building and construction consortium (Formed by four companies: Kajima Corporation, Tekken Corporation, Shimizu Corporation, and Taisei Corporation)	Tokyo station Yaesu-side development project north building Phase I building and construction consortium (Formed by seven companies: Kajima Corporation, Shimizu Corporation, Obayashi Corporation, Takenaka Corporation, Taisei Corporation, Tekken Corporation, Sumitomo Mitsui Construction Co. Ltd.)
Construction period (schedule)	Sept. 2004 - end of Aug. 2007 (approx. 36 months)	Sept. 2004 - end of Oct. 2007 (approx. 38 months)