Caja Oscura by Javier Corvalán
The roof of this house in Paraguay can be lifted open like the lid of a box (+ movie).
![Caja Obscura by Javier Corvalán](https://static.dezeen.com/uploads/2013/08/dezeen_Caja-Obscura-by-Javier-Corvalan_18sq.jpg)
Located in the countryside outside capital city Asunción, the house was designed by Paraguayan architect Javier Corvalán as the holiday home of a film-maker.
![Caja Obscura by Javier Corvalán](https://static.dezeen.com/uploads/2013/08/dezeen_Caja-Obscura-by-Javier-Corvalan_11.jpg)
The owners are often away for long periods of time, so Corvalán was asked to create a building that could transform between a comfortable residence and a hermetically sealed box.
![Caja Obscura by Javier Corvalán](https://static.dezeen.com/uploads/2013/08/dezeen_Caja-Obscura-by-Javier-Corvalan_10.jpg)
The base of the two-storey house is surrounded by walls of locally sourced sandstone, which support the concrete floor slab and galvanised-steel structure of the level above.
![Caja Obscura by Javier Corvalán](https://static.dezeen.com/uploads/2013/08/dezeen_Caja-Obscura-by-Javier-Corvalan_13.jpg)
To raise the roof of the house residents simple wind a manual winch, causing the rectilinear structure to tilt open and reveal the kitchen and living room housed inside.
![Caja Obscura by Javier Corvalán](https://static.dezeen.com/uploads/2013/08/dezeen_Caja-Obscura-by-Javier-Corvalan_7.jpg)
When closed, a pinhole allows the windowless space to function as a camera obscura, projecting an upside-down image of the surroundings onto the MDF panels that line the interior walls.
![Caja Obscura by Javier Corvalán](https://static.dezeen.com/uploads/2013/08/dezeen_Caja-Obscura-by-Javier-Corvalan_14.jpg)
The bottom floor houses a bedroom and bathroom. Mezzanine glazing wraps around the edges of this space, creating a visual separation between the two floors.
![Caja Obscura by Javier Corvalán](https://static.dezeen.com/uploads/2013/08/dezeen_Caja-Obscura-by-Javier-Corvalan_4.jpg)
Concrete tiles cover the floor, while the staircase leading upstairs is constructed from cantilevered stone blocks.
![Caja Obscura by Javier Corvalán](https://static.dezeen.com/uploads/2013/08/dezeen_Caja-Obscura-by-Javier-Corvalan_3.jpg)
We've featured a couple of houses with moving walls and floors. Others include a residence that transforms from a villa by day to a fortress by night, plus a home with mobile walls and roof that can be moved to cover and uncover parts of the interior.
![Caja Obscura by Javier Corvalán](https://static.dezeen.com/uploads/2013/08/dezeen_Caja-Obscura-by-Javier-Corvalan_12.jpg)
Other holiday homes completed recently include a prefabricated building in the shape of a cloud and a guest house with a patchwork timber facade.
![Caja Obscura by Javier Corvalán](https://static.dezeen.com/uploads/2013/08/dezeen_Caja-Obscura-by-Javier-Corvalan_17.jpg)
See more moving buildings »
See more holiday homes »
![Caja Obscura by Javier Corvalán](https://static.dezeen.com/uploads/2013/08/dezeen_Caja-Obscura-by-Javier-Corvalan_19.jpg)
Photography and movie are by Pedro Kok.
![Caja Obscura by Javier Corvalán](https://static.dezeen.com/uploads/2013/08/dezeen_Caja-Obscura-by-Javier-Corvalan_22.gif)
![Caja Obscura by Javier Corvalán](https://static.dezeen.com/uploads/2013/08/dezeen_Caja-Obscura-by-Javier-Corvalan_21.gif)
![Caja Obscura by Javier Corvalán](https://static.dezeen.com/uploads/2013/08/dezeen_Caja-Obscura-by-Javier-Corvalan_20a.gif)
![Caja Obscura by Javier Corvalán](https://static.dezeen.com/uploads/2013/08/dezeen_Caja-Obscura-by-Javier-Corvalan_20.gif)