In the end, everyone has their own opinion on this. We are still relatively young and want to keep every option open, and yes, if we ever do sell because we emigrate and make more money from it, then we will be happy. And no, I do not feel guilty about it. As mentioned above, we pay property taxes and have obligations to fulfill on the property. Surely it would be good if everyone could build and there was enough land for everyone, but that will not happen. In the end, the OP was concerned with the question of what is cheaper, selling land or taking on more credit. And if you look at the value development of building land and compare it to the interest rates, then taking on more credit is ultimately the "better" option for HIM. Not for others and certainly not for the idealized young family. But honestly, who here voluntarily pays thousands more for the benefit of others.