A very long back wall for this penthouse was the client's main difficulty.
The walls were separated into three distinct areas which colours which are carried throughout the space, bringing an element of unity. A textured grey wall in the staircase contrasts with the reflective marble tiles, while the stair rails were kept in glass so as to not create any boundaries.
A wainscoting feature in the dining area makes it feel like a formal space. A yellow carpet with brown hints matches the kitchen colours - again repeating this carpet in the living room brings the two sides of this apartment together.
The result - a unified space.