Is building a house with 245-255 thousand euros possible?

Without a basement, 150m2 is possible for 250 thousand euros, even with the top provider with the red S from the Alb.

We have a 145sqm prefabricated house, knee wall 2m. Air-to-water heat pump + ventilation system. Concrete slab (no basement), no garage. Extras: painting/wallpapering, flooring attic. We are, even after the sample selection, within your limit (although very tight). Prices still applied for 2013/2014 PS: The provider is headquartered in Bavaria.

I think it's okay to name companies as long as it’s not too judgmental... sony, nike, Viebrockhaus, matchbox, Schwörerhaus, mcdonalds...