Looking for some advice on non permanent buildings in the Dordogne

Hello everyone. I am looking for some advice on planning permits for non-permanent holiday homes, basically tents. I realize it can differ commune to commune but I thought before I barge into my mairie and start asking questions it might be a good idea to get a feel for what was allowed and what was not. We would be looking to erect tents through the summer months but connected to a fosse or maybe a compost loo, with a decking area, so not completely temporary. Is there anyone out there who has any experience with this, I would be really grateful for any info.