Build a house from natural stone yourself?

This is daydreaming, not feasible. Energy saving regulation, equity capital and bank loan, architect and building permit, craftsmanship and expertise.... I think that’s enough keywords.

If you have time and motivation, then buy an existing house. There you can let yourself go with the renovation. Maybe there are sandstone houses in your region?

I have a good friend who owns very large areas of forest, and there are endless sandstone boulders there, which I would be allowed to use. (yes, I am aware that I would have to collect several tons for that, but it somehow worked before)

Chapeau, you rarely see so much optimism and drive.
Try doing that for a week and estimate how many stones you can transport.
And then compare the visual quality of the forest stones with your photo above and try to make them look good.

In DE these are the worst conditions. You can rather find such buildings in southern countries. Something like that still works there. Now ask yourself why?

.. and even in southern regions, these buildings are damp and cold in winter and hardly heatable.

.. and even in southern regions these buildings are damp and cold in winter and hardly heatable.

....and they are not built from boulders gathered in the forest, but from sandstone.

You overestimate the costs for masonry.

If you want to build yourself, wood or Ytong is your friend.

I lived in a wine-growing area before the new construction. For years I wished for a sandstone vineyard house... and I got it. You really have to be careful what you wish for. For about six weeks a year, the sun beat down so mercilessly on the vineyard that you would willingly go inside for a while. After a short time, I knew the next one would be made of wood. In spring and autumn, the sandstone house was too cold and felt somehow damp. How about you live there for a while if your health allows it? You can rent it as a trial. If you then choose approximately the temperatures that prevail here, you might find it easier to get an idea. Nevertheless, have fun doing it yourself, maybe in the end it will be a fantastic patio wall, who knows? Gabriele That you absolutely need carved sandstone, I consider a myth. It just has to be hard and solid enough.