Since July 1st, 2021, the energy performance diagnosis (DPE) has become a legal requirement in property transactions, shifting from being merely advisory to having enforceable consequences. This document evaluates a building's energy efficiency and provides an energy rating, which influences the property's market value and helps buyers or renters understand potential energy costs. If an DPE is incorrect, the seller or landlord may be held legally accountable, and in some cases, the person who conducted the diagnosis could also face responsibility. This legal framework was introduced to encourage energy efficiency and transparency in the real estate market. In June 2025, a report from the Court of Audit raised concerns about the continued use of the DPE, suggesting that it might be time to reconsider its existence. The report questioned whether the DPE has achieved its intended goals or if it has created unnecessary burdens on property owners and professionals. It highlighted potential issues with the current system, including inconsistencies in how the diagnoses are conducted and interpreted. The report also pointed out that the DPE has become a point of contention among various stakeholders, including real estate agents, property owners, and energy consultants. Some argue that the DPE has not effectively driven improvements in energy efficiency, while others believe it has raised awareness and encouraged more sustainable building practices. The debate over the DPE reflects broader discussions about how to balance regulatory requirements with practical implementation in the housing sector. As the discussion continues, policymakers and legal experts are examining the findings of the Court of Audit to determine if changes to the DPE system are necessary. The outcome of this review could influence future regulations and the way energy efficiency is assessed in property transactions across the country.