Floor plan of a new multi-family house with 3 residential units, living area approx. 350 m²

And there should be views and sections included for this.

Yes, it will be an exciting story with eaves and ridge heights. Because in this construction, there is no ridge height, as the eaves height results from the eaves of the penthouse (a ridge height cannot be determined for this building).
It's a pity that we no longer have our specialist for this in the forum. He also once said:
"Actually, according to the guiding principle of a ruling by the OVGMV, the eaves of the penthouse counts as the eaves height. But since the ruling refers to a specific case, it also opens up possibilities for interpretation in differently composed cases."
But maybe there is something about it in the development plan.

I hope the development plan was carefully reviewed, because such a project can lead to many problems:
- The mentioned eaves height
- In many new development areas, a green roof is required for flat roofs (if that is the case, also consider the additional costs there)
- Hope 3 apartments are allowed (often limited to 2 residential units)
- Pay attention to the floor area ratio (the terrace also counts, so be careful when choosing the size)
- Sometimes 30% planting of the property is required. This might also be tight here.
etc.

Hope 3 apartments are allowed (often limited to 2 residential units)

According to the mentioned guidelines and the fact that you are not dealing here with anyone who knows the state building code or has knowledge of housing planning, I dare say that this was probably not taken into account and probably will not be the case. You can still fit 3 parking spaces on a 500sqm plot, but nobody wants to live next to 5 parking spaces as a neighbor. That is why new development areas are zoned into multi-family house zones, closed development (terraced houses), and open development (semi-detached + single-family houses) with the option for 2 residential units. But I may be wrong.

I have to agree with my predecessors here. Even if you don't want to hear it, the calculation is far from the achievable reality.
If you assume the usual 3k per sqm, you'd already be over 1 million, just for illustration.
Own services don't seem to be enormous either, awarding trades individually might save a bit if done properly. But realistically you won't get below €2500 per sqm, and even then you'd be at €875,000. And as said, that's already nicely calculated.

Just list the individual cost calculations for the trades, then you can pretty much see where the calculation was wrong or if something is even completely missing.

Hello Enrico,

thanks for your note. I can manage it at that price. If you negotiate properly, you can achieve worlds. In 2022, I already built a house with 315 sqm including basement. Total production costs, including kitchen and bathroom fittings, about €450k. I live in that house myself and paid attention to very good quality (large tiles, large windows, concealed fittings, more expensive pipes for underfloor heating, etc.)

For each of the trades, I could easily have spent double if I hadn’t looked for other service providers and refrained from frills.

Just for the roof alone, I could have paid €45k instead of €23k, the same goes for plumbing and electrical. For the shell construction, I buy the materials myself and pay the shell builder his wage.

It is a shame that a large part of the discussion revolves around the budget when that is not the issue at all.

Best regards

It is a pity that a large part of the discussion revolves around the budget, when that is not the topic at all..

Why don’t you, if you already justify yourself so much about how well you can build compared to the whole of Germany, address the legitimate comments about the project? Without input from you, no output from us.

According to the mentioned specifications and the fact that no one here is familiar with the state building code nor has knowledge of housing planning, I dare say that this was probably not taken into account and will probably not be the case.
You can still fit 3 parking spaces on a 500sqm plot, but no one wants to live next to 5 parking spaces as a neighbor. That is why the new development areas are zoned into multi-family house sections, closed development (terraced houses), and open development (semi-detached + single-family house) with the option for 2 residential units.
But I could be wrong.

You are wrong, here are the specifications from the development plan.


If someone does not want to live next to 5 parking spaces, they have to find another residential area. Everyone building here must be aware that the neighboring house can have 3 apartments and thus 5 parking spaces.