Housing with permits from before May 2010 were subject to other regulations, the performance of those homes can only be measured by audits performed during rental/sale transactions.
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Energy performance certificates for housing in Wallonia, Belgium 2024, by rating
Most of the energy performance certificates (EPC) for housing issued in Wallonia (Belgium) as of August 2024 had the lowest energy rating. However, most new homes, with permits issued after ***, when new regulation started being applied, had an A rating or higher. The number of existing housing units with energy performance certificates with a G rating amounted to **.
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État de l'environnement wallon. (March 19, 2025). Number of existing housing units with energy performance certificates (EPCs) in Wallonia, Belgium as of August 2024, by rating [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 31, 2026, from /statistics/1460548/energy-performance-of-housing-wallonia-by-rating/
État de l'environnement wallon. "Number of existing housing units with energy performance certificates (EPCs) in Wallonia, Belgium as of August 2024, by rating." Chart. March 19, 2025. ÌÇÐÄÆƽâ°æ. Accessed July 31, 2026. /statistics/1460548/energy-performance-of-housing-wallonia-by-rating/
État de l'environnement wallon. (2025). Number of existing housing units with energy performance certificates (EPCs) in Wallonia, Belgium as of August 2024, by rating. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 31, 2026. /statistics/1460548/energy-performance-of-housing-wallonia-by-rating/
État de l'environnement wallon. "Number of Existing Housing Units with Energy Performance Certificates (Epcs) in Wallonia, Belgium as of August 2024, by Rating." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 19 Mar 2025, /statistics/1460548/energy-performance-of-housing-wallonia-by-rating/
État de l'environnement wallon, Number of existing housing units with energy performance certificates (EPCs) in Wallonia, Belgium as of August 2024, by rating ÌÇÐÄÆƽâ°æ, /statistics/1460548/energy-performance-of-housing-wallonia-by-rating/ (last visited July 31, 2026)
Number of existing housing units with energy performance certificates (EPCs) in Wallonia, Belgium as of August 2024, by rating [Graph], État de l'environnement wallon, March 19, 2025. [Online]. Available: /statistics/1460548/energy-performance-of-housing-wallonia-by-rating/
