A resident of the Bellevue district in Brest now lives in incomparable thermal comfort: his apartment maintains a temperature of 23°C without the need for heating. Enough to make millions of French people jealous who are facing an unprecedented energy crisis. This feat is the result of an energy renovation which transformed its 1970s building into a low-consumption building.
A spectacular metamorphosis
The residence at 48 rue de Kermenguy, built in 1977, was initially a thermal sieve. “Without wall insulation and barely better roof level”underlines Emmanuel Arnaud of Tinergie In West Francethe building required urgent intervention. The colossal work, amounting to 1.58 million euros, made it possible a spectacular improvement in the thermal coefficient of more than 70%increasing the energy class from D to B.
One of the major innovations of this renovation was the transformation of the balconies, previously a significant source of heat loss. The installation of a “curtain wall” made it possible to convert them into habitable space, offering the co-owners a double advantage: better thermal comfort and a gain in living space.
A collective project supported by the public authorities
This spectacular renovation would not have been possible without significant public financial support. Of the total amount of work, 707,000 euros, or 45% of the cost, were covered by grants. The National Housing Agency (Anah) contributed 482,000 euros, while Brest metropolis and the Brittany region contributed 224,600 euros.
The Tinergie platform, a local public energy renovation service, played an essential role in the success of the project. This structure, created by Brest Métropole, offers free technical and financial support to co-owners. Since its creation, it has already supported the diagnosis of 4,000 homes and supervised the work of 500 homes.
This project is one of the priorities of the Bretage region. In the West, the building sector represents 45% of final energy consumption. Faced with this observation, the region has made energy renovation a priority, with an ambitious objective of renovating 45,000 homes per year.
At the national level, the government is putting in place numerous aids to carry out thermal insulation work. Owners of thermal strainers will also have to carry out work if they want to continue to rent their accommodation. From 2028, the rental of properties with energy class F or lower will be prohibited.
- A comprehensive renovation including the complete insulation of the building and the innovative transformation of the balconies
- Public funding covering 45% of the work, making the project accessible to co-owners
- Personalized technical support from the Tinergie public platform throughout the project
