Construction costs are currently skyrocketing

Ready-mixed concrete C25/30 rises from €181 to €191.50 as of 1.1

Unfortunately, I don’t see where the 30% are hiding...

Brutal, I paid about €80 plus VAT for the foundation in 2015, €87 plus VAT and delivery costs for the outdoor stairs and wall in 2016... thus a doubling in 8 years.

But those are the list prices again... The general contractor who orders concrete for 50 houses per year there will be significantly below that... It will probably be like with aerated concrete

Brutal I paid about 80 euros plus VAT for the foundation in 2015, 87 plus VAT and delivery costs for the external stairs and wall in 2016.. thus a doubling in 8 years.

Well. It certainly varies regionally and even there it is worth comparing between providers. Ordered last year still for about 120 EUR including VAT.

they then come on top as "Supply Chain Disruption and Energy Cost Increase Surcharge" :rolleyes:

The crazy thing about the story is, the above was made up or guessed. And I just found this here while searching for an article: "2) plus 9.5% General Material and Energy Cost Surcharge" (I was searching for an Item 8 small drilling jig)

Possible. But I would point out that producer prices fell by about 4% each in October and November compared to the previous month. This could continue, and a few months later this "deflation" (haha) might work its way through to the customers. And then?

It can continue, yes.
However, price adjustments at the baker or supermarket do not reflect producer prices one-to-one.
Because the baker can't simply make his rolls 50% more expensive, then no one would buy them.
In that respect, falling producer prices initially mean that the baker’s losses decrease, not the prices for rolls.

Energy costs also remain high, and various unions have enforced wage increases around 8% over 2 years, plus one-time payments amounting to a month’s salary.
That means prices will rise in 2023/24, simply because wages are going up.

With all due respect, I don't see much substance in your assumptions.

Which also aligns with the fact that no expert in this field expects deflation for 2023/24. On the contrary, in 2023 it will be another 7%.

Those are of course the list prices again... The general contractor who orders concrete for 50 houses per year will be significantly below that... It will probably be like with aerated concrete

Relatively speaking, the general contractor will experience similar price increases for concrete. Even their best customer cannot be sold the goods without a margin or below cost price.