Selection of a plot in the new development area

I recently discussed the 11ant basement rule on "Bauen jetzt" ("With or without basement: a rule as a decision-making tool"). The "worst case" for a slab-on-grade house is, of course, the best case for a house with a residential basement ;-)

Whereas the basement and the money for it are only part of the equation. The outdoor facilities must also work with the terrain, and in the end, a coherent overall picture should emerge.

Contemporaries who want to return their brains on their deathbed "with zero kilometers" are heavy users of foam sealant and L-bricks. There are always solutions for brain users. For the mentioned plots, however, it is rather moderate; perpendicular to the neighbors (the height restrictions can be read as approximate indicators for sensible ground floor floor heights), it's usually only ten or twenty centimeters (except for the eighty centimeters between 25 and 26).

What charming solutions might there be here, for example?

So let's establish this: 9 and 12 as well as 27 would be my favorite wins, and the others we've discussed so far are at least good consolation prizes. Regarding the intensity of their contestation, assume that many of your co-bidders somewhat naively choose their favorites based on beginner criteria like maximum southwest-facing gardens.

I recently discussed the 11ant basement rule on "Bauen jetzt" ("With or without a basement: a rule as a decision tool"). The "worst case" for a slab-on-grade house is of course the best case for a house with a residential basement ;-)

We have absorbed the interesting contribution, many thanks. Therefore, a basement makes sense and is also on our wishlist.

We are open as to whether it will be a square or rectangular house.
The topography clearly says rectangular with a distinct house axis parallel to the contour lines (and hence also best aligned to the access road). A residential basement virtually implies a "stone" basement floor, even if it possibly continues above in wood. As always, I recommend deciding on the construction method only during the resting phase of the dough.

What can we imagine by a "stone" basement floor? Is that referring to the construction method?

For first-time building clients, that is the best way to pay a lot of tuition fees. Use the forum search for my posts under the keywords "house construction roadmap," "Gerddieter," "direct awarding," "self-awarding," "tendering," and "time charge." Then I won't have to tack on reading material for a whole weekend here ;-) (because I have explained all that in great detail already).

Very interesting, I will start devouring the reading material.
If I understood correctly, I then start looking for an architect for module phase A as soon as we know which building plot we would get (provided it suits us)?
By when can one usually back out of a building plot if financing is not possible?
Ultimately, I can only decide that after consultation with an architect.

With a budget of €650,000 (I assume the incidental building costs are included?), I see a maximum of about 200 sqm of living space.
Even if the incidental costs have already been subtracted from your budget, which at your status is actually too early to communicate detailed expenses, I don’t see a larger house, nor a granny flat, which consumes living space as does a terrace and parking space.
If you only want to build a 100 sqm house because you don't need more due to lack of children, a basement or granny flat would also be possible.

150 sqm over two floors would be enough for us. We have two children, each under 3 years old.
The granny flat would be interesting later from a financial support perspective and possibly for the grandparents.

A friend just listed the following expected costs for me; does this correspond to reality?
They seem very high to me:
"Calculate with €3300-3500/m² and about €60k for the basement and €30k for the garage."

Isn't there a high-voltage power line running through the eastern row, ?
I find 17 incredible in shape and orientation, but I cannot assess the heights.

Yes, a 20 kV line runs exactly here.
Does this have any impact?

The granny flat would be interesting as a later financial support option and possibly for the grandparents.

Renting out the granny flat almost never pays off. And on top of that, you constantly have a stranger on your property.

A friend just listed the following expected costs for me, does this reflect reality? They seem very high to me: "Calculate 3300-3500€/m2 and about 60k for the basement and 30k for the garage"

60k for the basement seems rather tight to me, especially as a habitable basement. Considering the additional effort for earthworks and disposal, expect more like 80-100k. But it also depends on the soil to be excavated. And 30k for a masonry double garage is indeed not much. Square meter costs are roughly in the right range but depend mainly on your standards and any personal contributions. Basically, in many regions you can build for less than 3000€/m2, but it is also very easy to end up significantly higher.

What charming solutions would there be here, for example?

They have to and can be developed individually.

We have taken the interesting post to heart, many thanks. Ergo, a basement makes sense and is also on our wish list.
[ / ] What can we imagine under a "stone" basement? Is the construction method meant by that?

Feel free to use the contact option there without obligation, because we cannot write directly here. The providers of wooden houses almost never build in the earth-contact area but start their work on a concrete base. So if a "basement" is built, it would have to be masonry or poured or made from corresponding precast concrete elements.

Very interesting, I will start devouring the reading material.
If I understood correctly, then I start with the search for an architect for module phase A.

In the reading material you will find described in more detail in which cases you look for the architect for which scope of work or have me or others look for one. The summary of the HOAI service phases into architect-commissioning modules is a portioning recommendation from my consulting experience. If you ask an architect for "Module A," in some cases they will say: "oh, you come from the 11th floor," but more likely "kannitverstan ???" or "what’s that?".

, as soon as we know which building plot we get (provided this suits us)?
Until when can you usually withdraw from a building plot if the financial implementation is not possible?
In the end, I can actually only decide that after consulting an architect.

Every seller has different withdrawal rules. Mostly, the plots are oversubscribed enough that simply a follow-up buyer is happy. More critical is if there is a building obligation and you cannot meet it within the deadline. Then usually "all expenses are lost." You should already consult with the financing advisor. You can also contact "my" Susanne through me. I have not found any tough nuts for an architect in your selection of plots – at least none that would make him give up. I currently see no technical reasons for a return.

60k for the basement seems rather tight, especially as a living basement. I would rather calculate with the additional effort for earthworks and disposal at 80-100k. But it also depends on the soil conditions. And 30k for a masonry double garage is actually not much.
Square meter costs are roughly in the right range, but depend mainly on your standard and possible own work. In principle, you can also build for less than 3000€/sqm in many regions, but it can also very easily end up significantly above that.

That’s how it is. On a slope, you will rarely build the garage like on flat ground.

Yes, exactly here runs a 20kv line.
Does this have any impact?

Well… there are sensitive people who would reject having their garden underneath it.

Calculate with 3300-3500€/m2 and about 60k - basement and 30k for garage"

That’s about right. The prices are basically within the expected range. Basement as a utility basement.
A living basement has almost similar costs as above-ground living space.
If it’s someone from your area who said that, then they will roughly know the regional prices and won’t lead you into a trap or expect golden faucets.

150sqm on two floors would be enough for us.

That’s a reasonable size.

The granny flat would be interesting later as financial support and possibly for the grandparents.

What do you mean by interesting? Many plan a granny flat often on a minimum size of 30sqm to qualify for funding. For grandparents, you should rather plan a two-family house because who wants to house their parents in 30sqm, possibly in the basement? Are they contributing money or paying rent? Is 250sqm still affordable then?
Such plan-B options should already be known when choosing the plot because 150 + 80 + double garage + carport or carports for 2 families, the plot should then also be suitable for that.
Possibly the semi-detached house plot would then be interesting.

What does interesting mean? Many people plan a granny flat frequently at the minimum size of 30 sqm, [...]. For grandparents, one should rather plan a two-family house, because who wants to accommodate their parents in 30 sqm, possibly even in the basement? [...] Such Plan-B options should already be known when choosing the plot, because [...] the plot should then also be suitable for it.

I see it the same way.

Perhaps the semi-detached house plot would then be interesting.

I assume that the acquisition opportunity for "entire" semi-detached house plots would require two lots. Apparently, the semi-detached house plots were developed later. This kind of thing regularly happens following demand and is not that easily reversible.