Design firm BEHF Architekten have remodelled the Koller + Koller im Waagplatz restaurant in Salzburg, Austria.

The architects' six-month intervention saw the 170 sq m tagesbar (day bar) – which is housed in a building dating to the Middle Ages – gain renovated entrance, dining, and sanitary facilities.

According to BEHF, the firm sourced natural materials from Salzburg, Styria, and Lower Austria to refurbish Koller + Koller's unused or outdated structural elements, including its centuries-old Freysauff cellar, mosaic-tiled vaulted ceiling, wood panelling, and marble flooring.

The architects also used controlled lighting to add both "playfulness" and "sophistication" to the space, while Barcelona-based graphic artist Christiana Spano supplied the restaurant's carnivalesque logo: a dancing fox and rooster.

The project is restaurant’s first major rehaul since its founding by the Koller family in 1974.

In a statement, Norbert and Claudia Koller, the site's current owners, said: "With the renovation, we wanted to revive the historic building and bring it into the 21st century with modern accents. It was created to be a place of solid hospitality".