The reinforced concrete structure resting on two existing basement floors was initially retained and the building was extended by two additional full storeys. By structuring the floor plan as a tripartite with ancillary use areas in the middle zone, the axial dimensions allow for the creation of a wide variety of office types.
The existing vertical access elements were removed and replaced by a newly dimensioned staircase and lifts that optimally connect the basement floors. Expanded into a two-storey hall, the foyer includes two glass lifts that run along the outer façade to the 6th floor and offer a special spatial experience. A central interior staircase provides access to the upper floors.
The new façade of light-coloured limestone with deep relief gives the building a solid stature and contrasts with the glass curtain of the neighbouring Hanse Forum. Following the classical model, the façade is divided into a ground floor clad in dark natural stone and a light-coloured corpus. The visual combination of two storeys by means of two-storey wood/aluminium box-type windows enhance the monumentality of the appearance. The large windows of the upper storeys each extend over three axes.
As a characteristic accent, the building was given a sloping wall on the northwest side, which is accentuated by lighting at night.
