Smaller plot - Is something feasible from it?

Well, I know that too. My city is located in a valley surrounded by hills, there might be some isolated building gaps, but basically nothing more is coming. There is a city plan outlining what is to become building land in the short, medium, and long term, and in fact, it is simply exhausted. Occasionally, a garden plot is cleared, where you can then buy a plot for 500€/m² upwards. The city still grows somewhat in one direction, public transport so far no thanks, the river regularly pays a visit, and for all my "circles" that I draw, it is completely the wrong direction – I would have to constantly stand through the city. Moving away from the city is out of the question; the children have their center here, school, friends, etc. So I was very relieved when I found something 800m next to work. Plot size 306m², with a shell construction on it, inside I can still design it myself within the given framework. 10.5 x 7 m² external dimensions. I'm going to finish building that now. Of course, I would have liked 200m² more garden. But I couldn't have afforded it.

You also have to see whether it is realistic that something better will come along. Maybe I would have found a pre-owned property at some point, probably with considerable renovation backlog. Maybe not. A buildable plot rather not. No chance.

We felt the same way and I can understand you very well.
I just wanted to point out that you are not completely convinced about the property internally and might be unconsciously driven by the realtor and the real estate as well as banking lobby.
We first seriously considered ownership over six years ago, but then dismissed it again because of various reasons. Until our landlord’s behavior at the beginning of 2016 encouraged us to look for something of our own...
The house is only now (somewhat) finished.
Our compromise is the driving – about 1 hour door to door is "normal" in our region between work and home. In return, we have a large plot and paid very little for it (60€/m²)
Lucky is he who has it significantly shorter despite good work!

For 60€/m² you can't even get a plot here in the deepest surrounding area. Not even a recreational plot. And such a long commute, whether by car or public transport, would be too big a change for us personally, so it wouldn’t be a "dream plot" anymore despite the best orientation and size.

Both a detached single-family house and a semi-detached house should be possible. A semi-detached house would only be possible on the condition that the neighbor agrees to it. However, if you decide on the detached single-family house, it will be built with a boundary setback, and the neighbor can only build a semi-detached house again on the left property boundary, also in consultation with the other neighbor.

That is exactly how it is. If you want a semi-detached house, a building obligation as an easement is usually registered for both parcels, which the neighbor must agree to. One would need to know how it continues to the north. If the neighboring plot is not at least 12 meters wide, the existing development of the building block (does it already exist?) might have already created facts.

That's exactly right. If you want a semi-detached house, usually a building obligation as a building encumbrance for both parcels of land is registered, which the neighbor has to agree to. One would need to know how it continues to the north. If the neighboring property is not at least 12m wide, the existing development of the building block (does it already exist?) may have already created facts.

Thank you for your response.

No, it is a new development area. However, attached is the property located to the north.

OK, then you have free choice.

OK, then you have free choice.

Okay, thanks. The only question then is whether it makes sense to plan a detached single-family house here with the remaining widths. Surely, quite a lot is still possible with clever planning. But the deviation from the standard will probably also lead to significantly higher planning effort and costs. Especially since the real estate agent casually mentioned again today that a height increase of about 2 m from front to back is to be expected...