What is the average cost per m² of the energy renovation of an apartment classified as a thermal sieve?

Study / Review / Report
Par Bat info source: Ithaca via Edifice Communication
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What does a thermal strainer apartment look like? What are the costs of the work to be carried out to escape energy poverty? What aid is in effect for 2024? Characteristics of the properties, average energy renovation bill, amount of aid, etc.