The courthouses of Antwerp were struggling with a lack of space, and were too widely dispersed through the city. With encouragement from VK, Rogers-Stirk-Harbour and Arup entered the public competition (organised by the Buildings Agency) for the design of the new courthouses to be built on the Bolivarplaats.

The design creates a gateway for Antwerp, the hub of which is formed by the Salle-des-Pas-Perdus, a waiting area for witnesses, and magistrates. This public space can be found on the 2nd floor and offers beautiful views of the city. The three wings of the building extend from the hub. Each one has 6 levels, 5 of which are above ground. The upper floor houses the courtrooms, 6 large and 26 smaller ones, each with its own hyperbolic-parabolic shell roof. Each consists of 4 quadrants and was constructed off-site. The hyperbolic form was selected only after careful consideration, and a wind tunnel test.

Sustainability was an important consideration for the jury of the competition. This is why natural materials were used visibly and responsibly. Most importantly, several energy efficient techniques were integrated into the design. Climate control is achieved using natural ventilation and night cooling strategies. The system allows fresh outdoor air to enter the building through secured ventilation grates and open windows. At night, the concrete structure absorbs the cool outdoor air. Large glass areas with cleverly designed sun screens allow sun to stream in while preventing overheating. Rain water is captured for use in sanitation, irrigation of the courtyard garden, and general building maintenance.

The new courthouse of Antwerp represents a valuable addition to Belgium’s cultural heritage on many levels.