Sainte-Croix Church: construction site monitoring

12.08.2025 · News

An essential restoration project

The Catholic Church of Sainte-Croix, an iconic landmark in the centre of Carouge, enjoys the highest level of heritage protection. Built in the 18th century, the church has undergone several transformations and renovations since then. The last major renovation dates back to the 1970s, and a new in-depth restoration is now required, covering both the church and the adjacent sacristan's apartment. This restoration is essential to comply with current standards, particularly in terms of fire safety, thermal insulation, and technical installations.

Blackening has been observed in recent years, due to a mismatch between the indoor climate and the building's thermal casing. To remedy this, a new heating and ventilation system is planned to limit these effects and make it more comfortable for parishioners. Floor supply grilles and return grilles in the vault will allow for optimal, controlled ventilation.

The interior lighting and sound system will be completely redesigned to ensure the best conditions for worship and other types of events, including concerts. These events create unforgettable moments of shared experience and contemplation, strengthening the bond between the community and its heritage.

The renovation of a protected historic building is a delicate process that requires careful attention to detail and close collaboration between various experts. By balancing respect for the past with the needs of the present, these projects help preserve our cultural heritage while ensuring its viability for future generations.

Actualité de CCHE pour le projet Église Sainte-Croix à Genève Suisse
Actualité de CCHE pour le projet Église Sainte-Croix à Genève Suisse
Actualité de CCHE pour le projet Église Sainte-Croix à Genève Suisse

During construction, it was found that the framework of the transept and choir did not meet current stability requirements. It was therefore necessary to reinforce these structures. This reinforcement will be carried out while retaining the existing rafters, in order to preserve the historical substance of the building. In this way, the work will respect the authenticity and heritage value of the church while ensuring its long-term future.

Stratigraphic analyses have also made it possible to reconstruct the evolution of the interior colours during the various renovations of the church. Since the early 20th century, the interior colour scheme of the church and sacristy had been monochrome. Following this analysis and in collaboration with experts, historians, and conservators, the original colours were reinterpreted in shades of yellow and ochre for the church and beige and green for the sacristy, restoring the building to its former glory. These colours highlight the richness of the architecture, emphasising the pilasters, cornices, vaults, and decorations, particularly in the side chapels. In the sacristy and the sacristan's apartment, the same meticulous attention was given to analysing, preserving, and enhancing the original architecture.

View the project in pictures

Actualité de CCHE pour le projet Église Sainte-Croix à Genève Suisse
Actualité de CCHE pour le projet Église Sainte-Croix à Genève Suisse
Actualité de CCHE pour le projet Église Sainte-Croix à Genève Suisse
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