The work of Luxembourg-based architects studio hertweck, the design of Glasner House references the traditional typology of the courtyard house in the villages of the Ahr valley. However, this only becomes apparent on second glance – the solid base made from reinforced concrete and the clean geometry of the building suggest a cool, modern architectural language. Nevertheless, the design and choice of materials are not purely the result of aesthetic aspirations. The local conditions prevailing in Dernau in the Ahr valley mean that the concrete base is exclusively reserved for functional rooms and parking spaces, raising the living areas on top significantly above the hundred-year flood water level (HQ100). This means that, if the water level rises again, the lower section can be flooded with causing any problems.

This precaution has not come about by chance – although the building had already been equipped with flood protection measures, it was severely damaged by flooding in summer 2021. The water rose so quickly that it got underneath the floor slabs and screed on the first floor and drenched the thermal insulation. Extensive renovation work was required in order to make Glasner house habitable again.

Behind the double-skin base façade is a timber house consisting of stacked ceilings and wooden post-and-beam walls, surrounding the inner courtyard which is sheltered from the sometimes rather tall neighbouring houses. The children's rooms and playrooms are located in the rear, single-storey section of the building. The living room, dining room and parents' bedrooms are situated at the front. While the communal areas are thus largely screened from view, the large Schüco panoramic windows permit far-reaching vistas, showcasing the vineyards beyond.

The architecture of this family home not only combines traditional construction methods with an awareness for future climatic developments and adverse weather events, it also emphasises sustainability in building. All of the Schüco systems installed – from the highly thermally insulated mullion/transom façade to the equally highly thermally insulated windows and incredibly robust door – have been awarded the “Cradle to Cradle certified™” sustainability label and therefore contribute towards making the building envelope sustainable.