Vacant lot vs. new development area - how to decide?

we also built in a building gap where 90% of the neighboring buildings are old stock inhabited by retirees.

But on the other hand, not so much that your modern house would be an alien body. I think the architectural era gradient to the surroundings should not be too steep. I know streets where every house without garden gnomes would seem to be from another planet.

well, our double-story bunker really stands out from the crowd

Short distances is thinking of the children: they can then move independently in the town center early on and do not have to spend half of their childhood on a car backseat.