CSD Archtecten brings together the  three  people that masterminded the project below: Britt Crepain, Stefan Spaens and Joep Debie. In this collaborative formula they managed to create this original four-levels house in the mittle of Antwerp, Belgium. The hardest part in implementing this idea was optimising the space in every room from every level. However, the results, as you can see, are fantastic and the place has everything a normal, “horizontal” apartment has, including a ground floor and a roof terrace. We particularly like the large windows and the modern interior design. If you look closely, there are also some inventive and highly original features in this apartment, such as the hidden room behind the library. Check it out!- via Buzz-Beast