If you have kids – or even if kids visit you regularly – you know how quickly their toys can take over your otherwise-minimalist interior. Mother and designer Amy Whitworth noticed this problem when she was building cardboard doll houses with her three-year-old daughter, and she decided to create doll furniture that doubles as grown-up furniture.

The Qubis Haus draws inspiration from Bauhaus, Mies van der Rohe and Le Corbusier. When the kids are gone, it is a sophisticated multi-level coffee table of birch plywood. When the kids want to play, it transforms easily into a doll house with the addition of slide-in wood and perspex panels.

Although it is a fun piece of transforming furniture, the Qubis Haus also serves two other very important functions. First, it allows kids to design their own doll house by moving and rearranging the panels and furniture. This inspires creativity and lets kids learn about design at a very young age.

Secondly, the fact that this toy is kept in a shared space means that it can be used constantly – and it encourages cooperative play with parents. Kids learn that their playtime and their interests are important to their parents when parents play along with them. The Qubis Haus is available for £400 (US $630) and magnetic oak furniture that fits into the house can be purchased separately.