One glance was enough to tell me that this village was only about 50 years old.
50 years old is enough to change a site completely - a natural switch from thatched wooden houses to modern brick ones etc. Residents didn`t have to leave the old village and build a new one nearby - they just built new houses, that`s all.
There are still old houses in Biskupin - now historical monuments:
pl.wikipedia.org/wiki/Biskupin_(powiat_%C5%BCni%C5%84ski)