Iidabashi Grand Bloom

Completed in June 2014 on the west side of Iidabashi Station, this 30-storey, 150-metre office tower was developed by Mitsui Fudosan as part of a station-front redevelopment that created a riverside walk and cherry-blossom terrace along the outer moat.

Use

Office tower

Area

Chiyoda City

Completed

2014

Floors

30 above ground, 2 below

Height

149 m

Total floor area

approx. 124,002 m²

Developer

Mitsui Fudosan / Mitsui Fudosan Residential

Architect

Nikken Sekkei

A White Tower by the Outer Moat

Four metro lines converge at Iidabashi Station — the Tozai, Yurakucho, Namboku, and Oedo lines — making it one of central Tokyo’s more tangled interchanges. From the west exit, a white office tower rises beside a tree-lined waterfront walk. Iidabashi Grand Bloom was completed in June 2014, with 30 storeys above ground and two below and a height of approximately 150 metres. Design was a joint venture between Nikken Sekkei and Maeda Construction; construction was handled by a joint venture of Maeda Construction and Kajima Corporation. The total floor area reached 124,002 square metres.

The redevelopment replaced low-rise, post-war buildings that filled the station’s west side. It was organised by the Iidabashi West Exit District Urban Redevelopment Association, with Mitsui Fudosan and Mitsui Fudosan Residential as the principal developers.

Sakura Terrace and the Riverside Promenade

The retail zone on floors one to three — called Iidabashi Sakura Terrace — opened in October 2014. Its design makes use of the outer moat that runs along the building’s eastern side: covered walkways face the canal’s cherry trees, and an outdoor terrace opens toward the water. In spring, the view from the terrace toward Ushigome-bashi is framed by blossoms; in summer, the moat brings shade and a breeze that breaks the heat of central Tokyo.

Office floors occupy the upper storeys, with panoramic views reaching from the Imperial Palace grounds to Tokyo Skytree. The midpoint location between the Otemachi business district and Shinjuku has attracted technology and international companies looking for well-connected central addresses.

Summary

Iidabashi Grand Bloom was completed in June 2014 as a 30-storey, 150-metre office tower developed by Mitsui Fudosan on Iidabashi Station’s west side. Designed by Nikken Sekkei, it brought a riverside retail street and promenade to a neighbourhood that previously lacked a public waterfront. Walk the outer moat path from Ushigome-bashi in spring to see how the building and its cherry trees sit together along the water.

Related buildings: Otemachi Tower / Tokyo International Forum

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