Construction costs are currently skyrocketing

I generally have a question about the calculation of the per square meter prices. If I want to calculate my actual price per square meter, what does "one" take into account to make it comparable with the figures given here? Only the pure construction costs or also additional construction costs, land, possibly the kitchen? (I guess not the outdoor area, because that’s just throwing money away ^^) What all flows into the square meter price? Only living space or living and usable space (including attic if available)? How is a garage or an attic then considered? If this question has been asked x times already I’m sorry, but I couldn’t find anything concrete about it so far.

This is not a DIN standard. I can only say how it is usually understood and meant here. Construction costs, without additional costs, without architect, without kitchen, without outdoor facilities, without garage. Some calculate painting and floor work separately, some include them. @all Please add if I forgot something... Edit: With the 2,500 EUR/sqm one assumes a standard equipment. KFW/GGiwas, Venetian blinds, KNX, controlled residential ventilation, blah blah blah naturally on top. The basement is a common "problem". Land is considered separately but the question is, is it usable or living space? For some a bit blurred (hobby room?). Same goes for the attic. Therefore, as already said, one can throw the meaningfulness of a price per square meter for construction costs in the trash if one does not compare two completely identical houses standing directly next to each other (and even then there can be different requirements). In my opinion, the sqm price is therefore just as unsuitable for a "who’s got the bigger one"-comparison as it is for a I am the coolest frugalist shark comparison. Nevertheless, I consider such a value generally useful. In the planning phase. Because at some point as a potential builder I have to deal with the question whether I can even afford it or how much I can afford. Better at the very beginning. And such a value helps there. The number of dreamers is certainly large. Some you read about here in the financing thread, some only realize it during the fantasy floor plan discussion. I’m sure there is also an anonymous share who just read along and for whom it helped in the calculation. Especially at times when construction prices rise so rapidly, you quickly miscalculate. The information from the buddy who built a nice little house for 300k five years ago doesn’t help at all. So if one now assumes at least 2.5k here (not everyone does), then that is a value without any consideration of regionality and individual factors. In probably 90% of the cases where it is picked up here it is correct or exceeded afterwards. In the 10% of the cases that have frugalist traits, where the brother-in-law has a construction company, the builder takes a sabbatical and pulls the roof beams from his own forest and whittles them himself with a pocket knife, well then it might be too much. But that person will usually find that out himself. In the worst case, if he still calculated like that, he still has something left for photovoltaics or sinks it into the outdoor facilities.

Thank you for the detailed answer.

Although we are already in the middle of construction, so it is no longer important for the calculation, I was still interested. Depending on how I calculate, I get values between €4,500 and €2,100. One time, all costs including incidentals except the land but including the kitchen and initial exterior work like slope stabilization, etc., divided only by the living area (also without building services technology). The other time, I only took the building structure costs and divided them by the total area (including garage and attic).

I find the difference pretty extreme and thought there was something like a standard. Especially the attic pulls the average down significantly because compared to the rest it "costs nothing." But it also shows me how you can "manipulate numbers" without actually lying.

If you were to calculate from the top edge of the floor slab, the numbers would look even better o_O

Depending on how I calculate, I get values between €4,500 and €2,100
That is once all costs except the land but including the kitchen and initial exterior work like slope stabilization etc., divided only by the living area.
The other time I only took the building costs and divided by the total area (including garage and attic).

Compared to the usual approach here, your two values are nonsense :D

Just for fun, try calculating building costs (without exterior, garage, equipment) divided by living area. (without attic)

Measured against the usual approach here, your two values are nonsense :D

That's probably true :D.
But it really showed me nicely how you can play with the numbers :)

Just for fun, calculate building costs (without exterior, garage, equipment) per living area. (without attic)

There it already starts, our garage "hangs" on the house and unfortunately is not listed separately.
I have now fictitiously set it at €40,000 (which I think is rather too cheap).
Then I would also come to somewhat more than the €2,500 mentioned here.

I only hear about this from my circle of acquaintances. There are no more turnkey offers being made (except for prefabricated houses). They calculate with daily prices and the offers become more expensive from one conversation to the next. That was already the case for me, even though I’m only doing a "simple" renovation myself. I wonder how much speculation there is in this business and how much is really due to supply bottlenecks and rising raw material costs.

I assume that the order books are full and now the absolute pain thresholds of the interested parties are being tested. Those who have the opportunity should not expose themselves to this. However, I assume that with the (at least as I expect it) new government standard, prices will rise even more. Even though our own price increase of 14.6% on the entire house was bad, compared to subsequent builders we might still be getting off relatively well.

The calculation based on sqm simply does not lead to meaningful results and depends on so many factors that, from my point of view, no comparability can be established at all.

Thank you. The €/sqm is a value that makes a lot of sense for statistical surveys. For a specific project, it is acceptable for a first rough estimate. Unfortunately, as a planning parameter, this value is unsuitable, as the specifically established budget applies. The question is not how many sqm you get for this, but how much "functional and desirable" space.

If I want to calculate my actual price per square meter, what does "one" have to consider?

It is about the pure construction costs including the functional building services and earthworks for the house related to the "living area" (apparently according to DIN, no precise literature found on this).

Definitely NOT included are

[*]Land costs
[*]Additional building costs
[*]Development costs
[*]Furnishings (this includes, for example, the kitchen or a stove if it is not a central part of the heating system)
[*]Outdoor facilities (this includes driveways, paths, terraces, carports, and garages, if these are not integral parts of the building structure)