St Pierre Cathedral - Work in progress

The cathedral stands in the high part of the old city. The prominent façade, with its colonnade and two massive bell towers overlooks a small square. The body of the building is closed off on two sides among tiny streets that, at varying slopes, follow the contour lines of the hill. The apse complex overlooks terracing that faces the valley. The building is visible from the lake and, from the low part of the city it becomes a recognisable point from which to get one's bearings and contributes to the vertical appearance of the city. 
The illumination values of the city are controlled, with an almost complete absence of illuminated overhanging signage and restrained advertising presence. Consequently this results in a measured nocturnal appearance, well integrated into the natural landscape of the lake and mountains.  
At night the cathedral should be part of the general landscape, carefully integrated into its context, and should also maintain the strong image and predominant role it plays during daylight hours. We consider it necessary:
- not to tamper with the walls of the historical buildings, not to proceed with installations, not to install any kinds of fixtures and equipment, and not to act in any irreversible way on the structure of the ancient buildings. 
- to solemnly respect the spaces, volumes and architectural decoration by the choice and positioning of fixtures that are not visibly invasive but rather, small and built into the architecture. 
- to control consumption, energy savings, good quality of light, colour rendition, and pleasantness of viewing and living at night. 
The use of rooftops adjacent to the building allow us not to invade the building itself with fixtures, but to create homogeneous lighting with constant illumination values and controlled form and cast shadows, and to reproduce the appearance of the light at full moon. 
Modern technologies allow the installation of fixtures that produce dynamic and coloured light for festivities, special occasions and particular ceremonies.