Price evaluation of plot for end terraced house

But you don't want to do it that way, do you? Even if 2 residential units are allowed and the budget allows it, you could build quite a bit for one family on the area.

Exactly, there would only be a single residential unit with us. 3 parties in the adjacent neighboring house.

So far, not much has happened, our bid is placed and the owners are on vacation.

Only a bit more information from the building authority via the realtor: The "front" building window must be obligatorily filled to the side and to the front, so you cannot just put a narrow house and the garage next to it. Apparently, other interested parties wanted to do so.
But that would not be our plan anyway. The front building window is 11.5x12m, we would fill it completely and integrate the garage. This is also how it is done with the row houses in the southern part of the street, only the directly adjacent multi-family house has the parking spaces in the underground garage.