A.J. De Groot Holding Rotterdam
building services adviser:
Climatic Design Consult
building physics adviser:
Lichtveld Buis & Partners
Aristo Accomodaties is a company that meets the need for function rooms, catering and resources for business meetings and training. Aristo Utrecht is one of three locations. The branch is situated on the Brennerbaan 150 in Utrecht Lunetten and the property is owned by Fortress. The building dates from the late 1980s. With Aristo's wish to expand, the possibility arose to give both the building and its surroundings a new impulse.
In addition to expansion on the ground floor in the form of a new restaurant, the new function room on the roof of the existing building, in particular, is what gives the expansion its face. It was a conscious decision not to fit in with the existing character of the building. The low part of the complex was the ideal basis for a unique object that stands out from its surroundings by its design and detailing.
The volume, a function room for ca 200 people, is built up from five steel 'flat rings', which form the basis for the structure and are supported by the existing construction of the building underneath. The construction was built on the adjacent site and lifted into position by crane, where the function room was completed.
In order to keep the room as abstract as possible, the choice was not made for standard profiled sheeting or welted metal but for flat sheeting. By perforating the sheets and bringing the damp-proof course inside, the details on the outside could be kept to a minimum. The sheets are barely visible in the pattern of the perforations, screwed onto a construction behind. The perforation gives the curved aluminium skin a diffuse aspect to overcome dirt.
The interior of the function room is, as far as possible, in keeping with its casing. The floor, which is covered with grey needlefelt, continues up the walls and ceiling. A lowered ceiling, kept unattached at the edges, makes it possible to include building services. The entrance to the room joins on to the adjacent volume's existing access by means of a channel.