Here in Swabia only own house counts .... For me as a newcomer very strange .... But of course ... Is also easy when the property is for generations in family ownership and the entire village helps in the construction :)
@Gally this is always such a horror scenario for me. An acquaintance (fortunately not a close friend) bought an ancient house years ago. They are still renovating and every weekend friends are there to help. Believe when they are through with the renovation, they can start all over again. It's like the Cologne Cathedral ... I really wouldn't like that. Neither as a friend, nor as an owner.
@DonkeyInvestor well you can also do it differently 10 to 15 years nix renovated and then I have only done everything so I save me from the beginning to start again