The balconies in particular, emerging from the building mass out of one of two avant-corps at the street Sudoměřská, give the building its lightness. They connect the two facade sides of this corner building. The second avant-corps at the street Křišťanova also emphasizes the facade and contributes to free the facade from a certain austerity. Whether the gable roof was originally attached to the house is not clear. Other buildings from Katona have flat roofs. On the courtyard side, part of the roof is also flat, so it is conceivable that this gabled roof, facing the streets, was added later to create additional living space.