Construction costs are currently skyrocketing

And if everyone were as active as you, the forum could be shut down immediately. So, keep a low profile.

Man, someone is really angry. Slept on the couch again? :D

Of the 1250 pages here, about 98% are just right-wing nonsense, unnecessary discussions, or posts by pseudo financial experts. It really gives you a headache.

To the actual topic:

Window offer in April: €30,000, window offer in June: €37,000, window offer in September €36,000
The company is fully booked until early February.

What exactly are these windows? We also paid about €30,000 for our Weru windows (anthracite cost extra, 3m sliding door as well).
Fortunately, they are already in the house, as the window installer apparently had no information from the factory until the end about whether and when exactly they would be delivered. (Ordered 04/22).

The energy crisis will put even more pressure on the window manufacturers. I feel a bit sorry for my neighbors in the semi-detached house who still haven’t ordered windows.

I agree 100% with the first part of your statement.
A builder friend who mainly does single-family houses/semi-detached houses hasn't received any significant inquiries for 8 weeks and is booked until summer next year, after that it will get uncomfortable. Our house bank says there are currently no financing options for new builds. This month we are also just buying the plot and hoping for better times.

We want to as well. Do you have a deadline by when you have to start building?

I recently ordered our last 3 new windows for about 30% more than in 2017. Luckily, we are done with the window replacement then.

Someone from the forum once mentioned the "rocket and feather" principle here. Since then, I haven't been able to get it out of my head, as it describes this situation most accurately.

In my opinion, these are two different things. Rocket & Feather has to do with power positions. For example, if you look at the structure of the petroleum market, it becomes clear why no one dares to come out of hiding and significantly lower the end customer price when procurement prices fall. There are only a few participants in the market, and they control almost the entire supply chain. Demand has low elasticity (meaning the customer almost has to buy regardless of price) and switching is difficult, because a 10 km detour almost ruins any savings. Your example has little to do with that and more to do with the fact that raw material prices move through the supply chains. That takes time in both directions, you only need to look at producer prices compared to consumer prices. Consumers come off relatively cheaply.

So we haven't set a specific date X, but we hope for significant changes within the next 5 years. After that, one might have to consider a different plan if necessary. I would almost rule out a particularly sharp drop in property prices, but then again, nowadays you really have to expect anything.