Escalier Kojimachi | ETHNOS

Escalier Kojimachi’s location:

This project is an office building situated close to JR Yotsuya Station and Shinjuku-Dori Street. The site is a perfect location: its northwest side is connected to the street and the east side faces a temple, thus the open view from the building is assured semi-permanently.  This is one of the ESCALIER series, continued from its predecessor ESCALIER Gobancho.

photography by : Keishin Horikoshi / SS Inc

The architect secures three openings by lay-outing the elevator core to the southwest side. Using the maximum of a sky factor, the volumes of each floor are shifted to back and forth or right and left, so that every floor is recognized as an individual rental space while the balcony becoming as a green intermediate space between the office and the city environment.

Further, the architect has introduced the idea to connect the balcony on the front side and that of the back side by a staircase starting from the ground level, and these balconies are arranged at the northeast side of the building. The connected balconies encourage active communication between the upper floor and the lower floor while articulating the relation and the continuity of the city.

Also Read: 14 of the Most Foreseen Architecture Projects to Keep an Eye on in 2023

photography by : Keishin Horikoshi / SS Inc

In a post covid-19 era or a situation live with coronavirus, the working style will be diversified and the role of an office plays will be reconsidered. The venue where people meet will be vitally important. The balconies arranged in the building will be greatly appreciated as a space and as a part of the environment where office workers enjoy sitting and resting on the benches integrated with flower pots there.

photography by : Keishin Horikoshi / SS Inc

Common areas, such as installation shafts, corridors, staircases, and balconies are part of the exterior constituted to allow maximal rental spaces, and realize a 100% rentable ratio to bring up profitability. In order to be open to three directions, RC beams that contain PC stretching from the Elevator core in RC are supported by small-diameter steel round columns at the tip.  Double floor joists accommodate built-in lightboxes.

photography by : Keishin Horikoshi / SS Inc

At the curtain wall eaves, there are natural air supply openings to let fresh air flow in. A total heat exchanger is installed to realize a comfortable, wellness office environment. The project “Escalier” meaning staircase in French, has begun to honor the historical development of the cityscape and let it pass on to future generations.

This time we have connected dots to create a line, and we hope to add more dots to create a plane one day and contribute to the city.