"The average construction loan interest rates will rise. Our Sparkasse Mittelthüringen assumes that by the end of 2022 we will be around 4-5% and next year probably around 6%. After 4-5 years, the interest rate should normalize to about 3,xx%. I can imagine that."
I disagree with that.... I am rather of the opinion that we are currently at the peak (3-4% interest rates), and at the end of the year it will most likely go down.
Why?
On the one hand, the ECB will raise interest rates starting in July (which could cause interest rates to rise!) BUT the market has already priced this in, if not even overdone it (upwards!)
Therefore, the ECB should raise interest rates slowly, in small steps, without causing construction loan interest rates to rise.
But here comes the thing:
Although they want to counteract inflation, this inflation has been caused by "increased energy prices/disruption of supply chains." And it doesn't matter whether the ECB is at 0.00% or 5.00%, they won't be able to do much about that.
BUT if the ECB raises too much and too quickly, they will stifle the economy (which will already stagnate instead of grow), and it will also be the ECB's task to prevent this.
A possible scenario is that the FED wants to strengthen the economy in the USA, and starting in autumn we will begin to lower interest rates (which Japan did; they realized that raising interest rates doesn’t make sense, so they stick to 0% policy).
When the Americans lower interest rates, the ECB will at the latest stop raising them.
And if the ECB were to raise interest rates to 3%, then we would have entirely different problems in the EU (with Italy, Portugal, Spain, etc.)
Therefore, my humble opinion: it's rather unlikely that we will see 5-6% interest rates...