Casa Amatller, together with Casa Battló (designed by Gaudi), and Casa Lleó Morera, are a part of the House of Discord (Mansana de la Discordia). These three houses are renovations of older buildings that already stood here. The original building of Casa Amatller was built by Antoni Robert in 1875.
The architect based his design on the typical Catalonian Mansion, while combining German elements, with bold ridged cornice, highlighted with ceramic tiles. The house might look like a little palace, but is actually houses many apartments.
Originally, the house was planned as the residential home of chocolatier Antoni Amatller. You can visit the chocolate store that is located inside the building's kitchen. Notice the interesting glass ceiling inside.