Work on existing buildings
Restoration, renovation and rehabilitation of old buildings

Depending on the condition and type of building (ruin, dwelling, administrative building, listed building, etc.), regulations will differ.

Renovation work requiring no formalities is :

• work creating a floor area or footprint of less than 5 m ² (without modifying the external appearance);

• maintenance and repair work (without changing the exterior appearance);

• restoration work (except for protected buildings or by specific decision of the mayor's office);

• modifications to the volume of the building (without altering its external appearance).

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