The catholic parish community centre "Hippolytushaus" is a prominent urban-planning highlight at the entrance to the town of Troisdorf, near Bonn. It is part of an ensemble of buildings that is located in the archdiocese of Cologne and includes the historic St. Hippolytus church and the "Hippolytusgarten", which is a family centre as well as kindergarten. Both new buildings are the work of Stuttgart architects ATELIER BRÜCKNER.
The parish community centre is designed as a city gate that emanates its character radially, in that it is a building with three fronts. Large "gates", which are fully glazed all over, constitute an inviting, space-enclosing gesture, which is concentrated in the centre of the two-storey flat-roofed building. On the ground, an isosceles triangle presents itself. On the top floor, a circular skylight emphasizes the centreing effect.
The building plays with the contrast between flowing, generously opening space and closed wall surfaces, whereby the layout is defined by three uniform wings of the building. They flank the spacious, light-filled area inside the building and accommodate the ancillary rooms of the city gate. The effect of the building's wings, which are covered with wooden slats, is that of homogeneously closed units whose austere exteriors are made to look dynamic by means of a concave curve.
On the fronts of the building, the outer walls and the projecting fair-faced concrete ceiling of the flat-roofed building point the way into the building. Here, the wall covering is continued without interruption. Narrow, room-high beechwood panels characterise the indoor spaces and generate their particular atmosphere, whereas ancillary rooms and fixtures are kept decently white. The anthracite-grey colouring of the floor relates to the stone surfacing of the outdoor area so that the surrounding, newly designed square seems to flow, as it were, through the building.
The approximately 1200 square metre parish community centre is a publicly accessible centre of attraction, suitable for a wide variety of uses: the large "gates" enable access to a foyer area entered through a vestibule and to two separable halls for cultural events relating to pastoral work and for the Tafel (food bank) café. The ancillary rooms accommodate the stairwell, storage spaces and sanitary facilities. In addition, there is a spacious kitchen and the counselling centre of Lotsenpunkt e.V.
On the top floor, there are ten workstations of the Troisdorf parish community as well as quiet offices for meetings and a light-filled assembly room. It opens up in a westerly direction and offers a view of the newly created public green space between the kindergarten and the church building. Engaging in a dialogue with the city, the three-part ensemble of buildings is able to hold its own as a strong composite unit in the heterogeneous surroundings. The community centre acts as a city gate and becomes an urban meeting point for the entire town community.