Land planning for a triangular plot

Thank you again for the clarification. I just had an inspection appointment with a local architect. Before submitting a preliminary building inquiry, he will first speak with the building authority to find out whether the conditions (as you already mentioned, the building boundaries, since it might already be an outer area) even allow development. Only if he receives positive feedback here would he initiate a preliminary building inquiry. I will keep you updated. However, he did not sound really optimistic.

Here is another view of the location.

(as you already say, the building boundaries, since it may already be the outer area)

I see this risk as less likely at this point and it would also contradict the statement of the office. I mean the actual building window for this side of the street, which I roughly sketched in the attached drawing:

small update: the preliminary building inquiry was submitted mid last year, the hearing on rejection (outlying area, no privileged building project, scattered settlement formation, exemplary effect for further development) came within 3 weeks. lawyer was involved, 6 months of back and forth, in the meantime an agreement was apparently reached and the preliminary decision was to be issued. then the caseworker got sick, it ended up with someone else who ultimately rejected it. next stop: administrative court.

Outdoor area

No alcohol on duty should actually also apply in the building authority :-(

I also don't see any outdoor area here. But the building boundaries. What is the lawyer supposed to achieve before the administrative court? The official can calmly drink his beer there. He also makes lines like .

If you actually build an additional house there now, how is the whole thing supposed to be used in the long term? Have you already thought about that? Do you want to rent out the old house? How is the remaining garden supposed to be used together, or not, then? You surely have good reasons to insist on this solution, but I don't really find it nice.