House in Senriby Shogo Iwata
Slideshow: the cantilevered upper storeys of this house in Osaka by Japanese architect Shogo Iwata hover above a driveway.
![House in Senri by Shogo Iwata House in Senri by Shogo Iwata](https://static.dezeen.com/uploads/2012/04/Dezeen_House-in-Senri-by-Shogo-Iwata-1.jpg)
Completed in 2010, the three-storey-high House in Senri contains a total of eight tiered floors, connected to one another by sets of four or five stairs at a time.
![House in Senri by Shogo Iwata House in Senri by Shogo Iwata](https://static.dezeen.com/uploads/2012/04/Dezeen_House-in-Senri-by-Shogo-Iwata-2.jpg)
The uppermost floor is a roof terrace, which is tucked down behind a parapet wall at the top of the grey-rendered facade.
![House in Senri by Shogo Iwata House in Senri by Shogo Iwata](https://static.dezeen.com/uploads/2012/04/Dezeen_House-in-Senri-by-Shogo-Iwata-3.jpg)
The entrance is located on the side of the building, sheltered by a cantilevered canopy.
![House in Senri by Shogo Iwata House in Senri by Shogo Iwata](https://static.dezeen.com/uploads/2012/04/Dezeen_House-in-Senri-by-Shogo-Iwata-6.jpg)
You can see more cantilevered buildings here, including a hotel with a mirrored underside.
![House in Senri by Shogo Iwata House in Senri by Shogo Iwata](https://static.dezeen.com/uploads/2012/04/Dezeen_House-in-Senri-by-Shogo-Iwata-8.jpg)
Photography is by Nagaishi Hidehiko.
![House in Senri by Shogo Iwata House in Senri by Shogo Iwata](https://static.dezeen.com/uploads/2012/04/Dezeen_House-in-Senri-by-Shogo-Iwata-9.jpg)
Here's a little more from Shogo Iwata:
House in Senri
This house is planned for a family, husband, wife and their son.
![House in Senri by Shogo Iwata House in Senri by Shogo Iwata](https://static.dezeen.com/uploads/2012/04/Dezeen_House-in-Senri-by-Shogo-Iwata-10.jpg)
This small house has 8 levels of floor between entrance in the basement to the roof terrace in order to constitute every space not in concentrated way by big void but reciprocal relation of each space.
![House in Senri by Shogo Iwata House in Senri by Shogo Iwata](https://static.dezeen.com/uploads/2012/04/Dezeen_House-in-Senri-by-Shogo-Iwata-11.jpg)
This arrangement makes the notion of floor ambiguous and the continuity of space compatible with the hierarchy of space.
![House in Senri by Shogo Iwata House in Senri by Shogo Iwata](https://static.dezeen.com/uploads/2012/04/Dezeen_House-in-Senri-by-Shogo-Iwata-12.jpg)
In order to realize this spatial constitution with small gap we adopt steel structure.
![House in Senri by Shogo Iwata House in Senri by Shogo Iwata](https://static.dezeen.com/uploads/2012/04/Dezeen_House-in-Senri-by-Shogo-Iwata-13.jpg)
We use visible steel frame in 40mmx125mm flat bar that allow us to make each space flow without gravity.
![House in Senri by Shogo Iwata House in Senri by Shogo Iwata](https://static.dezeen.com/uploads/2012/04/Dezeen_House-in-Senri-by-Shogo-Iwata-14.jpg)
Project title: House in Senri
![House in Senri by Shogo Iwata House in Senri by Shogo Iwata](https://static.dezeen.com/uploads/2012/04/Dezeen_House-in-Senri-by-Shogo-Iwata-16.jpg)
Location: Suita, Osaka, Japan
![House in Senri by Shogo Iwata House in Senri by Shogo Iwata](https://static.dezeen.com/uploads/2012/04/Dezeen_House-in-Senri-by-Shogo-Iwata-15.jpg)
Architect: Shogo Iwata
![House in Senri by Shogo Iwata House in Senri by Shogo Iwata](https://static.dezeen.com/uploads/2012/04/Dezeen_House-in-Senri-by-Shogo-Iwata-17.jpg)
Main use: Residence
![House in Senri by Shogo Iwata House in Senri by Shogo Iwata](https://static.dezeen.com/uploads/2012/04/Dezeen_House-in-Senri-by-Shogo-Iwata-18.jpg)
Site area: 244.3㎡
![House in Senri by Shogo Iwata House in Senri by Shogo Iwata](https://static.dezeen.com/uploads/2012/04/Dezeen_House-in-Senri-by-Shogo-Iwata-19.jpg)
Building area:83.78㎡
![House in Senri by Shogo Iwata House in Senri by Shogo Iwata](https://static.dezeen.com/uploads/2012/04/Dezeen_House-in-Senri-by-Shogo-Iwata-5.jpg)
Total floor area: 156.50㎡
![House in Senri by Shogo Iwata House in Senri by Shogo Iwata](https://static.dezeen.com/uploads/2012/04/Dezeen_House-in-Senri-by-Shogo-Iwata-4.jpg)
B 1st floor: 6.30㎡
1st floor: 79.20㎡
2nd floor: 71.00㎡
![House in Senri by Shogo Iwata House in Senri by Shogo Iwata](https://static.dezeen.com/uploads/2012/04/Dezeen_House-in-Senri-by-Shogo-Iwata-7.jpg)
Building area: 83.78㎡
![House in Senri by Shogo Iwata House in Senri by Shogo Iwata](https://static.dezeen.com/uploads/2012/04/Dezeen_House-in-Senri-by-Shogo-Iwata-20.gif)
Structure: Steel
![House in Senri by Shogo Iwata House in Senri by Shogo Iwata](https://static.dezeen.com/uploads/2012/04/Dezeen_House-in-Senri-by-Shogo-Iwata-21.gif)
Date of completion: 2010/06
![House in Senri by Shogo Iwata House in Senri by Shogo Iwata](https://static.dezeen.com/uploads/2012/04/Dezeen_House-in-Senri-by-Shogo-Iwata-22.gif)