The Santa Lucía building, located in the heart of Seville, presented a technical and aesthetic challenge in its exterior ornamental lighting. The previous system, based on linear lighting installed in windows, was suffering constant deterioration due to the passage of pedestrians and users, affecting both the durability and the visual impact of the building at night. We were faced with the need to offer an efficient, durable and aesthetically pleasing architectural solution that would respect the original architecture of the building and eliminate points of conflict in busy areas.