In view of the high conservation value of the entire complex, the primary objective is to achieve unobtrusive integration of the lighting by means of small luminaire sizes and the selection of optimum luminaire positions. The lighting in the garden is equipped with appropriate protection against glare. The developed draft presents a lighting concept that includes the creative lighting of the ensemble and the safety-compatible lighting of all relevant areas and optimally coordinates them. By coordinating the lighting with the brightness of the surroundings, but also the individual lighting elements in relation to each other, a balanced appearance is created. In addition to the exterior lighting, the lighting in the central plenary hall of the Bundesrat is also being renewed.