Studiebureau Abetec in Zele is one of the major engineering offices in Belgium. As the company burst out of its seams, a relocation was inevitable. The new office building had to be both efficient and energy-conscious. By means of a high-performance lighting control system and a link to the HVAC, we were able to conciliate both worlds. The automatically-controlled sun protection system contributes to the energy efficiency of the building. In addition, simple touch-screen operation was provided at several locations. This allows access to all common technologies. As the CO2 is measured in all offices, the air quality is constantly checked and adjusted.