Is a semi-detached house construction allowed?

Thank you for your answers. Yes, unfortunately the development plan does not mention anything about semi-detached or detached houses. It is a general residential area with open construction. The plot would be about 800 sqm in size. Large enough for a semi-detached house.

Yes

What "yes"?

unfortunately the development plan says nothing about semi-detached or detached houses

Why unfortunately?

It is a general residential area with open development.

Nice.

Big enough for a semi-detached house.

Yes? How do you know that? Are you looking for concrete help here or just a bit of small talk?

hm, I wouldn't know either.

Isn't there an abbreviation in the development plan? E or ED?

I would say that only multi-family houses are not permitted. It does say one residential unit per residential building. In the case of the semi-detached house, the plot is separated.

The property is separate with a semi-detached house.

We don’t know that at all ... so far it sounded like a single property where they are now considering building a semi-detached house.

In the semi-detached house, the plot is separate.

If the plot can be divided, then yes.

We don't actually know that ... so far it sounded like a plot where they are now considering building a semi-detached house.

I have the impression that the original poster, out of desperation from the unsuccessful search for a suitable plot just for themselves, is clinging to the straw-"Plan B", to share an actually too large plot with a friendly building party.