The petition demands a right to reuse for existing buildings based on three key pillars: (I) tax reductions for renovation works and reused materials, (II) fair rules to assess both potentials and risks of existing buildings, and (III) new values for the embedded CO2 in existing structures.
Here is the organization’s website: https://www.houseeurope.eu/
That’s been policy here in Germany for well over a decade. Doesn’t seem like something that requires steering on EU level.