Address: Fahndorf 63, Weinviertel, Austria / Architecture: propeller z / Structural engineering: Peter Bauer / Site area: 2700 sqm / Built area (incl. barn): 190 sqm / Built area – addition (incl. terrace): 78 sqm / Interior area – existing building: 65 sqm / Interior area – addition: 55 sqm / Renovation: 06.2006 – 09.2006 / Addition: 06.2009 – 04.2010 / Photographs: © Hertha Hurnaus
The little farmhouse in a rural village some 60 km north of Vienna is of traditional U-shaped layout: living spaces to one side, stable and barn on the other side of a small courtyard, with a covered driveway connecting the two volumes. The original structure was built on purely functional principles, with the main purpose of protection. Due to the sloping terrain this resulted in a partially buried structure without any relationship with the surrounding landscape.
Apart from doubling the 60 sqm of living space available in the existing building, the new addition remedies this fault by establishing a strong and direct connection to the beautiful view of the gently sloping site.
The only alteration to the existing building was the removal of the roof’s southwest corner; the new volume slides into the resulting void and thus establishes contact with the existing structure without touching it.
The prefabricated wood panels of the new structure are aligned to form a shell that is almost completely closed to the west and north, but opens up completely to the south. The terrace on the eastern corner serves as a connecting platform, with a metal stair leading down towards the old building. While the two sides of the building rest on the slope, one corner is propped up on a single V-shaped steel column, creating a sheltered outdoor space.
The interior space forms a single volume housing a living space and an open kitchen. The ceiling is clad in marine plywood, the floor consists of exposed concrete. The white felt covering the northern wall provides acoustic attenuation and a backrest for the long bench that also supports the brick stove and the kitchen cabinets.
The fully glazed south facing façade, in combination with a 25 cm thick insulation of recycled newspaper almost eliminates the need for additional heating in wintertime. With the sleeping rooms remaining in the existing structure, the two buildings complement each other: the 60 cm thick mud walls of the old farmhouse provide shady and cool shelter in the summertime, while the addition offers abundant warmth and connection to the surroundings.
The scale and the slightly skewed geometry of the addition helps it fit well into its surroundings, while the metal skin, made of 5 mm thick plates of untreated aluminium provides a strong contrast to the weathered surfaces next to it. Only the wood stack that covers most of the north facing façade acts – apart from providing additional insulation and a couple of years worth of firewood – as a formal connection to the rural context.