Of course, it depends on the requirements what it ultimately costs. But several threads here in the forum prove that you can also build for well under 2000€/m². It certainly works for 1600 or 1700, even with [Kontrollierte-Wohnraumlüftung], [Raffstores] etc. You just have to look for the [GU] who offers these prices. Our house had, for example, a base price of 145T€ for 137 m², apart from underfloor heating and [Kontrollierte-Wohnraumlüftung], everything you need was already included. The rest is just "luxury."