Study of the options for renovation of Main Building III (HGB III) of the Dutch Railways in Utrecht, built in 1918-1921 by NS Chief Architect dr. ir. G.W. Heukelom to a modern high-quality office building, for one or more occupants.

By demolishing disused boiler rooms in the inside terrain and removing the car park added at a later date, the original indoor garden can be reinstated. Underneath this indoor garden a underground car park, bicycle parking area and archive rooms can be built. The car and bicycle parking can be accessed from the outside using the existing doorways in the façades.