The Volvo Group Korea construction equipment plant located in Changwon, Gyeongsangnam-do, about 40 years after its completion, was planned to improve the working environment of executives and employees through remodeling and to be in line with the sustainability pursued by the Volvo Group. Responding to the climate crisis and creating a human-centered work environment means creating an eco-friendly, human-friendly space that goes beyond the general factory environment, and will function as Volvo's next-generation factory. In order to improve the aging factory's light, air, and heat environment in an eco-friendly way, passive design elements were applied to the exterior, windows, and roof, and eco-friendly energy savings were optimized through the introduction and operation plan of an efficient air conditioning system.