Material studies were performed for the foyer and the special areas of Tower 1. The planned use of high-grade steel wall and ceiling liners was assessed in terms of light actinism. The images show in reflections of the luminaires how the direction of rolling and the surface pattern influence the light reflection.

The project was not realized.

In 2002 on the Theodor-Stern-Kai am Main, with a direct view of the Frankfurt skyline, the new office and service center for nine Allianz insurance companies with approximately 2,500 employees was constructed. Kardorff Ingenieure designed the lighting for all of the special areas and the illumination of the facade.

In 2005 at the end of the renowned Königsalle in Düsseldorf, a 23-floor high-rise for Ernst&Young was built. Our light concept for the building includes the importance of its impact
from a distance for the entire urban area. The dynamic basic design of the structure is underlined by a linear lighting pattern that becomes fainter as the lines travel toward the opposite ends. The project was overseen by our team during all phases ranging from the overall effect at night and the lighting of the workstations to the subterranean parking area and the daylight planning.

The multistorey administrative building completed in 1959 underwent thorough refurbishment to meet contemporary expectations of a corporate headquarters. The building received two new entrances with flying roofs that noticeably complement the older building.
The office lighting design has linear lighting fixtures integrated into the ceiling. The arrangement of luminaires underscores the lightness and refinement of the building in its nocturnal effect. At our suggestion, the luminaires are placed in a channel custom designed by us to include all of the building automation: sprinklers, loudspeakers, ventilation outlets, etc. The space in which to position all of these elements was very constricted, making their placement in the channel a particular challenge that had to be closely coordinated with the architects and building technicians. As a result, the ceiling is now extremely clear in its structure and remains free of any other fixtures or installations.

Extensive modernization of the former Debis building with the Renzo Piano Building Workshop. Kardorff Ingenieure supervised the DGNB gold-certified project from planning to execution for the 22-storey, 106 meter-high office tower, the spectacular atrium with adjacent lobbies and entrances, as well as the new exterior illumination. Already completed in 2015, the Sky Office showroom is located on the eleventh floor.