Renovated NTT Toranomon Building

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Completion Date

May 2012

Building Use

Offices

Location

Minato-ku, Tokyo

Site Area

3,334.20 m2

Floor Area

Renovated area: 2,965 m2

Building Area

2013.06 m2

Structure/Stories

Steel-frame Reinforced Concrete structure, 1 basement level, 8 stories above ground

photo:Renovated NTT Toranomon Building photo:Renovated NTT Toranomon Building photo:Renovated NTT Toranomon Building
Photography: Nacasa & Partners Inc.

The renovation project to enhance the additional value of the pre-existing office building included mainly improvements in security, interior design of the communal areas, and energy conservation. To change the impression of the entrance, which acts as the face of the offices, greenery was added, the marble side walls were polished with a special cleaning method to bring back their luster, and some marble panels were taken away to create a vault style ceiling. The removed marble is recycled as the outside benches. In addition, an artistic table, decorated with recycled buttons from push-button telephones, is placed in a meeting area. Thinned wood is used for the office directory board to add the warmth of wood to the design. Moreover, as an example of green renovation, the project places emphasis on radical recycling and energy conservation, along with implementation measures, such as LED lighting.

Publications

Shotenkenchiku July 2012 issue