The project task was the complete construction of a studio apartment with an area of 31 sqm. The goal was to convert a bright studio apartment with dimensions of 9.60 x 3.25 m into a one-room apartment for a family of three through precise design. The design solution maximizes the use of the two-sided orientation of the apartment, and the bedroom, bathroom, service room, living room and kitchen are arranged from north to south. In the very south – the kitchen is placed under a large opening, with a view of the city and the Brac canal. The bedroom, bathroom and service are condensed inside a geometrically clear and clean blue box that contrasts with the rest of the white surfaces inside the apartment. The white semi-reflective paint on the walls, ceilings and floor draws daylight deep into the space, making it more comfortable to stay in. By compressing multiple functions of the living space within one carpentry item, the spaciousness limited by the found dimensions of the apartment is largely retained.