Boiler house Ceres belongs to the first generation of buildings on the university campus in Eindhoven and is one of the most valuable volumes on the campus. Technological evolution made the original function of the boiler house redundant, however, by reallocating the boiler house to be the accommodation for the ICMS research institute, the TU/e can ensure it is preserved. The closed character of the building where daylight, outlook and energy use were not originally important is tricky to combine with its valuable new functions of office and educational building. The challenging task involved designing a spatial and functional concept whilst still respecting the existing architectural qualities. The end product it is a practical and inspiring building.