The Living Attic project in Morangis, near Paris, illustrates how an attic conversion combined with whole‑house renovation can enhance indoor comfort and energy performance. The initiative, carried out with VELUX, transformed an unused attic into a bright living space while upgrading the building’s overall energy profile.

The renovation applied the Living Places principles, integrating passive and active measures such as insulation, added thermal mass, automated roof windows and smart solar shading. Monitoring showed improvements in daylight, thermal comfort, indoor air quality and energy use. The dwelling’s energy class improved from F to A, with the attic providing 35 m² of new usable space.

The project also demonstrated strategies to mitigate summer overheating, including automated night ventilation and mechanical air supply. Measurements indicated indoor temperatures up to 8°C lower than outdoors during heatwaves, and night‑time cooling effects of 3.5°C through natural and automated ventilation.

This project illustrates what renovation can deliver: turning climate knowledge into practical action in everyday homes. Upgrading existing buildings is a direct way to cut emissions and bring living spaces back within a safe operating range.

Key figures:

• Building condition: Renovated existing house with attic conversion.
• Building type: Row house.
• Building age: Not specified in the available sources.
• Primary energy consumption: Not specified.
• Energy performance certificate rating: From class F to class A.
• Renewables: Not specified (the case study focuses on passive/active measures, ventilation and shading; no renewable systems are mentioned in the sources).

_{Image source: Living Places project website (VELUX)}