Construction costs are currently skyrocketing

In theory, one can (proven) work one day a year on the construction site. Although you won’t finish in three years, the building permit may be extended beyond the three years.

No. That’s not possible. With your phased construction (for example, first the ground floor, then half a year later the upper floor, etc.), you must prove a serious intention to complete the construction. You will not succeed with one day of work per year. Nice idea, but unfortunately not feasible.

This has already been legally confirmed – even though there are only a few rulings on the matter. In particular, self-builders who build over years – but with an ever-increasing state of construction – have no problems with the requirements.

Monetarily, it only makes sense if you price your own work at zero euros AND can live somewhere for free during that time AND the temporary accommodation would otherwise not be rentable AND you don’t derive more benefit from the temporary accommodation than from the built house.

Please don’t misunderstand, I find such DIY approaches extremely exciting and commendable and all that. But you have to be aware that every day between purchasing the plot and moving in also costs money. This is not so directly obvious but that is why opportunity costs are also called sacrifice costs, alternative costs, or shadow price.

Maybe in the container/caravan on the property? With an official registered address at the parents' or a good friend's... Although, in the end, you feel so comfortable with it that you don’t want to change your living situation at all...

That sounds to me very much like a bachelor, 50, would like to be a drop-out. You also have to want to build for that long. For my part, I am glad when the outdoor facilities are finished in autumn and you can simply enjoy them once in a while. Gradually, it is affecting motivation and family life. And this is just one summer and we already live here

Yes, nothing will come of it with a typical Stino family. I currently also have no motivation left to install the last doors and drawers in the kitchen. But that also has to do with how else I am otherwise occupied. When I imagine that I had saved up a little, no longer had a family, and only worked 20 hours a week, it wouldn’t be far off until then. Although a basic renovation would probably make more sense than a complete new one.

Maybe in the container/caravan on the property? With an official registration address at the parents' or a good friend’s... Although, in the end, you feel so comfortable that you don’t even want to change your living situation...

Last year I talked with "immigrants" who moved from FFM to the Schlei. For six months they were sent on weekends to renovate. Now they have been living in the caravan including a dog on the property for 2 years because they still are not finished. That wouldn’t be anything for me.