In occasion of the biennial horticulture show in Heilbronn, a vast commercial and industrial zone west of the city centre was the object of an important requalification. In fact, BUGA 2019 represented an opportunity to redesign a once abandoned portion of the city, highly fragmented by the presence of infrastructural barriers. Plans called for the construction of the Neckarbogen at end of the 173-day exhibition: a new residential quarter for roughly 3,500 inhabitants whose design of the open spaces was awarded to the Berlin office Sinai in 2011. Beyond the pure programme of the exhibition, a more general objective at the urban scale focused on the inheritance of an urban spatiality with a highly recreational value, capable of permanently enriching the city. Mobility infrastructures and physical-visual barriers were removed to guarantee that the riverfront could function as a connective element at the scale of the city.