The Petit Ile project in Brussels comprises a total of 397 apartments, 13,500 square metres of shops, studios, office space and two schools. The design of the quarter was developed by Multiple, pool, AAA and Duplex Architekten, resulting in a wide variety of different residential typologies on the site, which meet the various requirements for contemporary living. Although the new quarter represents an urban ensemble with a high density, the rising buildings as solitaires convey a certain permeability. The edge of the block is framed by the continuous base level, the urban spaces are clearly defined. Uses oriented towards the public enliven the ground floor zone. The privately used courtyards serve as meeting points and as the centre of the block, the green gardens on top of the buildings invite common occasions.