Happycheap is a minimalist house located in Stockholm, Sweden, designed by Tommy Carlsson. The plots high altitude area creates opportunities for both views and a private sphere, despite the size of 700 sqm. The house is placed after the large window towards southwest. The house, with its volume and sculptural expression, is a result of the room shape which has a principle of the square pitch where an angle of breaking and runs through the housing vertical opening between the two floors. The angle of the square creates a relationship between the room’s conventional right angles and room divergent angles. It has been a principle of the rooms, a right and a free angle.