Location: Tokyo

2008 Jutakukenchiku Highest Award


GA Japan Vol.85

GA Houses Vol.102

Shinkenchiku No.3 2008

Detail Japan No.3, 2008

Detail Spring, 2008

Nikkei Architecture No.869 2008

Finished Work

Appearance from the Northwest


Building this house of steel was the realization of the structural designer's dream.

1. The architecture mainly composes the structure and the finishing material.
2. Steel, more usually considered a framework material, can be fully expressed in modern architecture.
3. The internal structure of this normal life-span home allows room arrangements to be changed to adapt to changes in lifestyle.

In constructing the IRON HOUSE as a home we took advantage of the experience of ‘IRONY SPACE’ previously built as a company studio. In the project, we have achieved the three principles as outlined above.



Sandwich Panel Construction

Corten Steel Finish as the Basic Material

The IRON HOUSE demonstrates the versatility of steel. The stable rust protective coating fits in well with the building. In the course of time, the colour changes to blend in with nature. In view of the problems of transport and space, we designed the panels at our factory. Then we erected the house by welding on site. We used our own original method to improve the thermal insulation. Urethane was used as the adiabatic material for filling the sandwich panel. To improve the living environment, we created a rooftop garden. We succeeded in harmonising ‘Steel, Water and Greenery.’

The Rooftop Garden

Exterior Stairway

Inner Wall: Corten Steel Finish as the Basic Material
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Port of Kesennuma, Miyagi, Japan   Takahashi Kogyo co., ltd