Build a house from natural stone yourself?

I consider the claim that you absolutely need carved sandstones to be a myth. It just has to be hard and solid enough.

....this is not the case with sandstone boulders that have been lying in the forest or soil for ages. You can also carve them yourself or process them ready for masonry. One should a) be able to do this and b) as desired here, be able to afford the labor and time to process these stones ready for construction oneself for an entire residential house. We were talking about boulders.....

yes I am aware that I would have to collect several tons for that, but it somehow worked earlier )

In the past, there were slaves who built buildings in a few years of construction time, yes. In between (time period) workers who did not live beyond 40 because they worked themselves to death with such work. Animal protection nowadays even forbids donkeys from carrying loads. Your profession would be interesting...

While he collects the stones from the forest, other people earn money to be able to purchase approved masonry. Nothing against the idea of wanting to build oneself. But the perception of cost and return is distorted.

Here garden walls are made with it. Rough concrete is the best friend. Personally, I don't like it at all, We partly have very old sandstone walls; even there, the stone is already partially chipped. With sandstone, you have to be careful where and how you chip it. If you're unlucky, you only have stone chips left. Even very few masons can still do that. About the climate: we have a sandstone cellar above ground. Relatively constant temperature summer and winter. If you want to heat it, you need a forest, otherwise you will go broke. Weight: A sandstone the size of a milk carton weighs about 2.2 to 2.6 kg. A house wall of our house would weigh about 70 tons. In the past: the whole village helped, and at least in our stone-rich area, there were almost no stone buildings. Ground-contacting like retaining walls, foundations were stone, the rest was half-timbered.

It would also work unhewn. At least this one has stood for several hundred years.

Untreated concrete is the best friend.

Exposed aggregate can also look good.