In the so-called Isarvorstadt, a Wilhelminian district in the south of Munich, a two-storey extension was built in a backyard on top of an existing workshop building from the early 19th century on an existing fire wall.

The 6m high, tent-like all-room supplements the living spaces in the existing workshop building with a living and dining area, a kitchen block, and a workstation on the gallery.

The column-free, spacious interior is lit by roof openings with different slopes, dimensions and orientations.

The steeply pitched, metal-covered, and highly thermally insulated roof surface was constructed as a partially pre-assembled steel frame structure; the supporting structure disappears into the roof surface - it is invisible.