© Oliver Jaist
© Oliver Jaist
© Oliver Jaist
© Oliver Jaist
© Oliver Jaist
© Stifter + Bachman
On top of this workshop building with residence, Stifter + Bachmann have added two light, transparent storeys far more economically than a completely new structure would have been. Instead of the original walls and saddle roof, a perspex skin now unites old and new to form a homogeneous cube. Dating from the 1980s, the building was upgraded not only in terms of energy, but above all architecturally. Despite doubling the former net effective floor area, it was possible to reduce heating-energy needs to a third of what they were before.