Spatial Development Concept, Sempach

For the municipality of Sempach, a spatial development concept (REK) was developed as the basis for the revision of the local zoning plan. For this small town with great urban significance (ISOS heritage site of national importance, Wakker Prize 2017), a very sensitive approach to existing structures is required in the context of densification.

The REK is primarily spatial in nature. The preservation of existing qualities and a targeted, moderate densification within the village and small-town context are the main focus. Densification is therefore not seen as a burden, but as an opportunity for qualitative urban development. Through a targeted localization of densification, deficient spaces can be upgraded. For example, the traffic nodes at the northern and southern entrances to the historic town are transformed into attractive gateway plazas through targeted densification, and the main access routes become lifelines and addresses of the neighborhoods. Spatial qualities are better expressed, while at the same time ensuring local supply. Spot-specific, parcel-based densification is used to complete the pedestrian network. This links the various residential neighborhoods with the municipality’s most important recreational area—the shores of Lake Sempach.

Due to the urban and landscape setting, both small-town and greened neighborhoods are defined. This differentiation aims at a diverse development of the municipality. Urban extensions are only used to clarify and shape the settlement edge. The landscape, as an important resource and basis of quality of life, is thus preserved.

During the development of the guiding concept, participation and joint development with the municipality were paramount. Through open, simple yet stimulating spatial sketches, images, and perspectives, ideas and approaches were constructively discussed and concretized.