gmp Architekten shared with us their first prize winning proposal for the Trianel GmgH Corporate Centre in Aachen, Germany. The new building is located along a major road next to the Tivoli stadium. From 2013 on it is to be built in two phases, the first of which comprises 9,600 square metres of gross floor area and will accommodate 400 members of staff. In the second, optional phase the building can be extended by 4,800 square metres to accommodate a further 200 employees. The building’s sustainability concept merits a silver DGNB certificate. More images and architects’ description after the break.