For the new construction of a hotel in Hannover (Germany), an urban planning concept was sought. The approximately 3,200 m² plot is located in an exposed location on the edge of the city ring between major roads and the main railroad line. In the immediate vicinity there are large buildings, such as the administrative and operational building of tire manufacturer Continental AG. The client and the city of Hanover decided on an architectural competition for the façade design, in which bricks were given as a design feature for the façade. Germany based Kiefer + Kiefer architects were able to prevail with their design against four other offices.
The ground floor zone opens onto the street with a filigree glass façade and projects the public areas of the hotel business – such as reception, lobby and gastronomy – into the street, following the principle of “seeing and being seen”. On the outside the hotel rooms are surrounded by a frame of white concrete and thus optically punched out of the smooth clinker façade. The serial arrangement of these striking facade elements contributes significantly to the perception of the building as a major urban figure.
On the next level, within the framed elements, the facade frees itself from the strict corset. The result is a loose interplay of open and closed surfaces, narrow and wide window elements. The large scale of the frames is broken down to smaller windows in French format with delicate steel railings. The closed façade areas within the framed fields represent a fine brick relief and refer to the traditional brick expressionism of the 1920s common in Hanover.
The façade construction with an ETIC system and thin bricks meets the requirements of the specification with a thermal value of 0.16 W / m²K. The white concrete frames were inserted into the ETIC system and connected to the rear masonry to secure the position. Thin bricks and matching corners in the thicknesses of 14 and 22 mm were used to create the accent masonry.