In an inner courtyard close to the city center of Utrecht a playground is situated for the children of the neighbourhood. The old existing building on the playground was to be replaced by a new one. The brief called for a modest, durable and safe new building that would upgrade the playground and appeal to children. The building has separate spaces for a kindergarten. By means of a movable partition the spaces can be interlinked to provide space for different activities and multiple uses. Within a very tight budget a colourful light-hearted object was designed and introduced in the playground. The relationship between inside and outside is playfully strengthened with specific openings and windows. A large covered canopy for sheltered play features the front of the building. Natural wood and colour determines the cozy and comfortable atmosphere of the interior.