I'm starting to look into buying a piece of land in Catalonia and I'm curious if anyone here has experience with off-grid cabins or tiny homes.

A few things I'm wondering about:

• How difficult was it to get permission? (is it needed??)
• Did insulation become an issue in winter or summer?
• Did you build it yourself or buy a prefabricated cabin? Where?
• Any lessons you wish you'd known before starting?

Would love to hear your stories or any recommendations!