Unequal width in the planned semi-detached house

Hello everyone,

I am new to this forum and have a question about our construction project. We have the opportunity to buy a discounted building plot (approximately 350m2) for a semi-detached house in the Munich surrounding area. The contract for this is already available to us.
The plot for the other half of the house was sold four months ago. Last week I was able to contact our future building partners, who already have a permit for the following semi-detached house:
- Model Danwood 116w
- gable roof
- no basement
- 2 full floors, no attic option
- dimensions 10.2x7 m
- wall height 6.2 m
- roof pitch 25
- total 116 m2 living space

And here lies the crux: we are a family with soon two children and need a large home office. 116m2 is therefore definitely too little space for us. After consulting the local building authority, it would be possible to keep the length of 10.2 m, which borders the neighbor, but build our half wider (up to 9 m). Building without a basement is also not an option for us. Then we would have
- basement
- ground floor plus attic with external dimensions 10.2x9 m
So I think we could realize 135-140 m2 of living space.
Now my question to the forum: would you build such an asymmetrical semi-detached house?
Of course, it is annoying that we now have to adapt to the low pitch of the roof and the limited length. At the same time, it might also be nice to have two relatively spacious floors. Of course, there is also the option to waive the plot – but given the location, that would not be our preferred option for the price.
Maybe someone has experience or tips for a rather unconventional semi-detached house! We appreciate any feedback.

It is exactly the same case with our neighbors to the left – no old pig lady cares. Both halves also have a completely different internal structure and have (good heavens!) even different colors by now.

I would not give up my desired square meters just because the neighbors do not want it that big. With the basement, you just have to see – that was the case with other acquaintances (one with, one without). The "with" did not make his basement completely adjacent to the other house, but basically started a meter later.

If you build with me and the neighbors without a basement, then hurry up and be the first. Otherwise, it will be complicated and expensive!

If you build with and the neighbors without a basement, then hurry up and be the first. Otherwise, it will be complicated and expensive!

That's right!

Now my question to the forum: would you build such an asymmetrical semi-detached house?

Why not? As long as it's not explicitly excluded in the development plan?! And you already have the go-ahead from the building authority.
I honestly don’t see why you would have any concerns. Legally, there are no semi-detached houses, only limitations that you have to "share a house wall" in plain terms. Often this makes a lot of sense, considering that the plots are small and otherwise everyone would have to keep the 2.50 or 3 meter boundary distance.
I would even welcome building more individually rather than having to build a twin house.

There are many ways to build attached. I know two houses on a trapezoidal plot, where the houses stand one behind the other and staggered, so that only the staggered garages are connected.
Since the plot dimensions are unknown, just see what makes sense. If necessary, only a side extension might make sense. There's more than just square, practical, good.
And you could also generate living space in the basement if it is built to be habitable. There are also basements that are larger in floor area than the ground floor, where you can plan a skylight at ground level. Or conventionally a light well for a larger window.
116 sqm is really not much. That was my single-family house, but it was enough for a small family including the basement.

No problem at all. Just be the first one in the basement.

- Model 116w

Danwood also modifies existing houses. I once reduced one (the Brave, is it still available?) so that it would be suitable for two people. They then professionally designed it for me to look "nice." If we had signed, the architect would have cost 5000€ instead of 3000€ (prices at the time).