An urban house resting like a monolith over the garden; a single cubic volume housing every function and opening and closing to the outside. Each design applies very simple rules that give the structure its form. The rule here was to inhabit this pure volume, building openings wherever necessary and considering climate conditions.Two chunky concrete storeys are perched above a living room without walls at this house in São Paulo by Brazilian architects Studio MK27. Perforated metal screens slide back and forth around the perimeter of the ground floor living room, allowing the space to either reveal or conceal itself from the surrounding garden and swimming pool. On the upper floors, more metals screens can be pulled across the windows to provide privacy for the bedrooms, television room and office.