Any works carried out on the "Monuments Historiques" (historic building) require planning permission.
 

Some examples of renovations that would require planning permission include:

• Change of use of a building;
• Creation of additional accommodation;
• Construction of an outbuilding exceeding 20sq m;
• Installation of a swimming pool of over 20sq m;
• Installation of a septic tank.

Planning permission may also be required for the following:

• The removal of rendering to expose external stone work or covering stone work with rendering;
• The Creation of a terrace or patio over 60cm high or covering more than 20sq m;
• Installation of security grilles.