Vue de la Place Unterlinden, du canal de la Sinn, de la Maison et de l'Ackerhof (aile moderne) Musée Unterlinden Photo: Ruedi Walti

Musée Unterlinden Extension / Herzog & de Meuron

The project for the extension of the Unterlinden Museum in Colmar encompasses three dimensions: urban development, architecture, and museography. It centers on the issues of reconstruction, simulation, and integration.

Architects: Herzog & de Meuron
Location: Colmar, France
Photography: Ruedi Walti

Urban development
After the extension, two building complexes face each other across the Unterlinden square, whilst they are physically connected by an underground gallery. The medieval convent consisted of a church, a cloister, a fountain, and a garden standing to one side. On the other side of the square, the new museum building mirrors the church’s volume and, together with the former municipal baths constitutes a second, enclosed court.

Vue de l’entrée vers la salle d’orientation, Musée Unterlinden Photo: Ruedi Walti

Between the two museum complexes, the Unterlinden Square has recovered its historical significance, recalling the times when stables and farm buildings formed across from the convent, an ensemble called “Ackerhof”. What was before the museum’s renovation a bus stop and a parking lot, has become a new public and urban space. The Sinn canal, which flows under Colmar’s old town, is reopened and becomes the central element of this new public space. Close to the water, a small house marks the museum’s presence on the square: its positioning, volume, and shape are those of the mill that once stood there. Two windows allow passers-by to look downwards at the underground gallery connecting the two ensembles of buildings.

We were looking for an urban configuration and architectural language that would fit into the old town and yet, upon closer inspection, appear contemporary.
Moved to the centre of the Unterlinden square, facing the canal, the entrance to the expanded Museum leads to the convent, whose facade was delicately renovated. The renovation works were carried out in close collaboration with the architects of the French national heritage. Museological components from the recent past were removed and the spaces restored to a former state. We revealed original wood ceilings and reopened formerly blocked windows looking out on the cloister and the city. The church’s roof was renovated and a new wood floor was installed in the nave. Visitors walk down a new, cast spiral staircase leading to the underground gallery that connects the convent with the new building.
Inside, we decided to design the underground gallery and the new exhibition building (now called “Ackerhof”), which present the 19th- and 20th-century collections, along contemporary, abstract lines. The space on the second floor of the Ackerhof is dedicated to temporary exhibitions: its gabled roof and exceptional height (11.5 meters) reflect the proportions/volumes of the Dominican church standing opposite. The central space of the former municipal baths, the swimming pool (“La Piscine”), is connected to the new exhibition spaces. It serves as a venue for concerts, conferences, celebrations, and contemporary art installations. The other spaces of the former baths house the administration of the museum, a library, a café facing the new courtyard, and the Colmar Tourist Office facing Unterlinden Square.

The Ackerhof and the small house have facades made of irregular, hand-broken bricks, entering into dialogue with the convent facades in quarry stone and plaster that were redone many times over the centuries. A few lancet windows are cut into these brick walls; the roof gables are in copper. The new courtyard is paved in sandstone, as is the Unterlinden Square, while the enclosing walls are made of the same brick as the new buildings. At the heart of the courtyard, an orchard, the “Pomerium” is growing on a platform made of stone and brick.

Vue de la Maison sur la Place Unterlinden, Musée Unterlinden Photo: Ruedi Walti

Collection and Museography
In close collaboration with Jean-François Chevrier and Élia Pijollet, as well as with the museum’s curators, the museography and the architecture go hand in hand. The collections comprise works of worldwide renown from the Middle Ages and the Renaissance—most notably, the Isenheim Altarpiece by Matthias Grünewald and Nicolas von Hagenau (1505-1516), but also designs, prints, and patterns for the production of textiles, photographs, paintings, sculptures, faience pieces and ethnographic objects from the 19th and early 20th centuries, with a focus on local art and art history. From the 1960s onwards, a modern art collection was built up. As to the Isenheim Altarpiece, it remains in its original if more light-filled and less cluttered convent church location, although its presentation frame has been replaced by a sober steel structure. This makes the painted wood panels look more like artworks. Eleventh- to sixteenth-century paintings, sculptures, small altars and artifacts are on display on the neighboring ground floor and in the cloister. The downstairs floor presents the archaeological collections.
The underground gallery consists of a succession of three very different exhibition spaces. Beginning the circuit, we have the history of the Unterlinden Museum, covering a section of 19th-century and early 20th-century works. The second gallery displays three of the Museum’s most important pieces: located under the little house, this room represents the core of the expanded Unterlinden Museum, uniting the project’s three dimensions: urban development, architecture, and museography.

On the first and second floors, the new building represents a loose chronological sequence of the 20th-century collection. Interconnected spatial units organize and structure the floor’s overall volume, rather than subdividing it: here works or groups of works are exhibited in relation to one another.

Together with the museography for the collection of 20th-century art, the inaugural exhibition (from January to June 2016), curated by Jean-François Chevrier, will serve as an outstanding example of the uses to which the newly acquired spaces can be put while presenting an exemplary reading of specific pieces from the collection.

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