The architecture of the Dortmund architects Hansen + Petersen rejects stylistic classifications. Their work began programmatically in the outskirts of the cities, the commercial areas that are otherwise often avoided. Hansen + Petersen are pursuing a direction that radically returns to the functional core of a building task in order to achieve sensible, contemporary buildings by minimizing and optimizing construction and spatial planning. Beyond romanticized eco-architectures or cost-intensive high-tech styling, their buildings for advanced service providers show a clear commitment to industrial production and assembly, to a technical-constructive aesthetic. Their executed buildings include corporate headquarters for high-tech medicine, the gold information pavilion of the Emscher cooperative as part of the IBA Emscher Park, both ecological and constructive challenging supermarkets and solar homes, among others.