Ostrovní is a modern residential housing project built on a gap site surrounded by historic architecture. It is situated in the heart of Prague, near the National Theatre, just a couple of streets away from Wenceslas Square. The shape of the land plot called for a unique construction solution. While limited space was a concern, the architects managed to fit in 2 apartments with light-flooded rooms onto each floor. The same is true for the main staircase. Two residential units located on each floor are entered from the hallway. The building houses a total of 8 apartments, including a maisonette occupying two top floors.