House with 100% own effort

Tax law, apart from undeclared work, has nothing to do with house construction. And undeclared work is also prohibited in Greece.

Right. That was just one possible example among many.

I do not want to explain my Kraut-und-Rüben remark here in detail or convince anyone. But the conclusion is wrong that I would prefer the opposite, "Einheitsbrei" or always the exact same floor plans and facades.

It would be possible to build cheaply and ecologically with clay-straw walls. However, the question would be how thick such a wall must be to meet today’s energy saving regulation.

Cheap and ecological construction could be done with clay-straw walls. However, the question would be how thick such a wall must be to meet the current energy saving regulations.

... so basically a timber framing method as our ancestors already knew. It will definitely be a challenge for everyone involved - and it is not cheap either.

I think you can also do something with rammed earth walls without timber framing. But I am not an expert.

I have an expert in earthen construction on hand. This type of building is currently very trendy again! He emigrated to Australia 10 years ago.

However, I saw a house at a trade fair two years ago that cost around €30,000 finished. It was a fixed house, approved for permanent residence on campsites.

Otherwise, I have a 2004 caravan with bunk beds to offer.

Sorry, I am still sure whether this is not a very early April fool's joke.

Our ancillary building costs alone amount to well over €30,000. An excavator costs daily rent, windows, doors, bathrooms...

22 years ago we built a house (bungalow, 115 sqm) ourselves together with the family for my parents-in-law. Duration: 2 years. Craftsmen: father-in-law foreman, brother-in-law metalworker, father roofer, etc... Costs: just over €100,000.

By now there are different regulations! Prices have risen ........

I find the project unrealistic! but I will subscribe to the construction blog immediately when it starts.