Town hall, Korbach
Korbach, Germany / 10.2019 - 11.2022
The medieval town hall dating back to 1377 stands in the middle of the historic town centre of Korbach, surrounded by old half-timbered houses. The existing building from the 1970s was demolished for the town hall extension and supplemented by a modern new building. The PORR building construction team erected the shell on behalf of the district and Hanseatic town of Korbach. The special feature: The previously recycled mineral demolition materials were reused on site.
The redesign of the extension in its historic surroundings has been a success. The historic town hall with its striking gable was supplemented by a four-storey building with two additional front gables and blends harmoniously into the Korbach townscape.
Sophisticated look of the concrete surfaces realised
The building construction experts from Gütersloh started the shell construction work in October 2019. The construction project included the earthworks and drainage work, concrete and reinforced concrete work, bricklaying as well as the construction of the architectural concrete façade made from precast reinforced concrete elements. The new building consists of two four-storey buildings connected to the existing listed old building of Gothic origin. The concrete surfaces of selected parts of the building are a particular highlight: The stairwells and the prestigious council chamber were partially constructed with exposed concrete class SB3 in order to successfully fulfil the high design requirements.
Facts & Figures
Company
PORR Hochbau West GmbH
Type
Office buildings
Runtime
10.2019 - 11.2022
Resource-conserving construction at Korbach town hall
Sustainability requirement: the old town hall as an "urban mine"
ARGE agn-heimspielarchitekten won the realisation competition with their architectural design and an innovative urban mining concept. The aim of the concept was to reuse as many materials from the 1970s building as possible in the new building and save valuable raw materials through selective dismantling and subsequent local recycling of the mineral demolition materials. The building construction team realised this sustainability requirement: the processed demolition materials were used as recycled aggregate when backfilling the foundations, installing the frost protection layer and the in-situ concrete, as well as for the architectural concrete façade made of prefabricated elements. The results are being incorporated as a model project in the development of a "Guideline for resource-efficient construction in the state of Hesse" and serve as a best-practice example for other cities.
The completed shell was handed over to the client in November 2020. In May 2022, the finished building was inaugurated and the employees moved into the new town hall.
What ultimately counts in the construction business is successfully completed projects. PORR has many of these.
