Single-family house or semi-detached house?

For reasons of soundproofing, the floor slabs should not touch each other directly.

It is simply unrealistic. In new development areas, semi-detached house plots are often sold. Neighbors rarely collaborate in these cases. Usually, they don’t even build at the same time.

Have you ever even built a semi-detached house? There is so much ignorance and speculation in this thread.

Here it is customary to find a semi-detached partner and join forces. Often you read in offers in newspapers, but also on real estate portals, that a second half is still available.
Semi-detached houses are finally being built here now. They took their time for 2 years until the last semi-detached house was sold. 5 semi-detached houses are now under construction. The 6th has not yet started because the second partner is missing.

Regards, Yvonne

With a normal semi-detached house, you definitely do not have a shared wall. Otherwise, it would be a two-family house. The floor slabs and walls do not touch either. If done properly, it does not matter what the neighbor does.

Also, the semi-detached houses are self-supporting; it just looks awkward.

The semi-detached halves can of course be built by completely different companies and construction methods.

They can also be built at different times. On the connecting side, one should fairly avoid filling in the excavation pit of the first semi-detached house.

For aesthetic and a little bit practical reasons, it makes sense to at least agree on the height and length of the building body, as well as the roof pitch. Also, whether to use facing bricks.

If the "cut side" is congruent, you at least have a visually unified structure and fewer problems sealing the transitions; or, for example, you don’t have to climb onto the neighbor’s roof in later years to possibly renew their exterior plaster.

200 sqm of living space plus a basement are to be achieved.
Do you get a good floor plan with a 7m wide single-family house, or does it feel like a terraced house and you would recommend a semi-detached house?
Area would be no problem with 2.5 floors.

Don’t you have an architect or a planner in the forum; people who ground the original poster? He won’t just build 10.00 x 14.00 m if the neighbor doesn’t cooperate.

Here, speculation is going on cheerfully based on the original poster’s changing information. He would do well to find a contact person in real life!

What does the municipality have to do with it? No development plan was drawn up. Therefore, every property owner has free design options within the framework of §34 of the Building Code.

No, because the first one also has to ask the neighbors whether to build on the boundary. Only if the first one builds with a distance is no neighbor approval required. If you want to build a semi-detached house, the possibility of boundary construction should be secured before purchasing the property.

The associated self-commitment to also build on the boundary is the bitter pill here. The best insurance against conflicting interests is when the land belongs to only one person until it is developed. Therefore, smart municipalities only allow semi-detached houses once they know their likely troublemakers (usually the local settlement construction specialist). In a §34 area, the possibility may of course simply arise from the fact that such constructions already exist in the vicinity.

But if you talk about a semi-detached house as an emergency landing, that basically says it all.

I think we are misunderstanding each other: I do not consider the semi-detached house per se to be bad, but only in this specific case, because due to the narrow plot there is the dilemma of either coordinating or building a “bowling alley.” Specifically, this is not the comfortable case of being able to rearrange a double carport and/or a breakfast terrace through boundary construction. Rather it is a case of “hang or choke.” So, game-theoretically close to the prisoner’s dilemma.

Of course, everyone can also take their own planner. That in itself is not childish – searching for the other planner without first checking whether the other’s planner would offer “good chemistry” as a joint planner is somewhat childish.

It is also possible to build uncoordinated in terms of time – if the person who builds second is already on their fourth pregnancy with a home, that can be handled easily. But at the first attempt, I see this running into a wall.

Smart municipalities therefore only allow the possibility of semi-detached houses once they know their prospective troublemakers (usually the local settlement construction specialist).

Even smart municipalities have no influence on whether the landowners build a semi-detached or a single-family house, unless the character of the nearby area is so clear that only one type of construction is approvable. According to OP, this is not the case here.

The associated self-obligation to also build up to the boundary line is the bitter pill in this.

Why? If both want the semi-detached house, it’s just a formality.

Smart municipalities therefore only allow the possibility of semi-detached houses once they know their prospective "Pappenheimer" (usually the local settlement construction specialist).

More nonsense!

Municipalities/communities already designate the corresponding areas for single-family houses or semi-detached houses in advance of the publication of a new development area. Your "Pappenheimer" at most refers to the fact that municipalities/communities like to bring both semi-detached house partners together at the table prior to a building permit.