Centre House is an office complex in Belfast. For the coverings of the building’s entrance hall, the Ply Design architecture firm opted for Marazzi Mystone Ceppo di Gré, an elegant, refined stone-effect stoneware that reproduces the beauty of Ceppo di Gré, the grey-blue sedimentary rock found in Italy’s Lombardy region. Two shades were chosen for the lobby: Greige and Anthracite, both in the 75x75 cm size. The architects used the two different colours to create a distinction between the reception and entrance areas, an ideal strategy for visually separating two areas intended for different functions.