House construction with 60k equity feasible?

summarized it very appropriately. 100% financing, but with €7000 net income, no problem at all. Is "Offshore Engineer" a profession one can do until retirement?

That is a silly pub saying. You can build a good house, maybe even with upscale features, for €400,000. No problem, but on which plot of land? Where houses cost €700,000, the land will accordingly cost several hundred thousand. Don’t let yourself be unsettled by such stupid sayings. Look at the local market. Search for building plots and see what they cost.

I am not denying them the housebuilding but the volume

The office is just on a ship!

Does that mean the man is rarely at home? Building might be more difficult/tiring if you are not constantly on site for inspections or meetings.

Have you already looked into how much plots cost in the desired region? The question is, if existing buildings already cost 700k, how much an undeveloped plot costs and whether a new build fits into the budget at all.

Yes, correct, that's why only a prefabricated house plus construction supervision by an expert is an option.

It depends on the district and the size of the plot. From 300,000 upwards, everything is available. But currently it is enormously difficult to get anything. If so, it is connected with existing buildings and the costs for demolition are added as well.

correct with us currently 100% for 20 years fixed between 1.80 - 2% And 80% for 1.1%