The Workshop's distinctive form references the classic garage format with forecourt.
 
The building comprises a simple steel frame structure fitted with fibreglass translucent panels. These provide both energy-efficient insulation and softly diffused light within, the latter facilitating productivity by creating a calm and relaxed environment in which to work. At night the workshop functions as a light beacon, illuminating the main entrance to the industrial complex.

In addition to the fibreglass panelling's light-diffusing and signage properties, its sub-structural configuration, comprising a series of delicate horizontal seams, animates the grid like composition, as articulated by the mainframe and mullions. Collectively, these details accentuate the dramatic cantilevered canopy.

Internally, a concrete box, housing the office and washroom facilities, stabilizes the main structure via a series of horizontal and vertical steel struts. These eliminate the need for external cross bracing, so preserving the aesthetic clarity of the architecture and its impact as a light beacon. Only standard industrial products were used in the making of Workshop Siegen.