Construction costs are currently skyrocketing

Not despite... but because. We have lost in society the understanding that one usually has to bear risks oneself, especially if one is economically capable of doing so. Whether it’s a company with a year of poor capacity utilization (regardless of the question of whether one has not caused it oneself through complex supply chains) or the citizen at the gas station, with heating, and so on. From all sides, the state is called upon, which of course then gladly throws money at the problems and finances it through debt. Who is still seriously surprised by inflation?

For what is deducted from me monthly, I expect a certain consideration... And in this case, that is support for a situation I did not cause myself....

For what is deducted from me monthly, I expect a certain return... And in this case, that is support for a situation I did not cause myself....

I rather believe wanted to criticize the "grabbing" of short-time work allowances (which has been abusively used on a large scale) by the big companies, not the benefit to the employees thereof - right?

I rather believe wanted to criticize the "grabbing" of the short-time work subsidies (which were abusively used on a large scale) by the big companies, not the benefit of the employees from the same - right?

Correct. As an ordoliberal, I have no fundamental problem with state interventions, but they must be targeted and truly necessary. Because the state can only intervene with money it has taken from someone else beforehand. As long as a company makes profits and distributes them, it has no need for state support.

We are currently obtaining various quotes for a 155sqm bungalow.

Screed is at 5,300 EUR. (100mm EPS 035/100KPA and 60mm screed)

Heating engineer (51,000 EUR, complete sanitary installation including Vaillant aro THERM plus VWL 55/6A including underfloor heating and Vallox controlled residential ventilation)
Will probably be upgraded because the offer only includes standard, so +2000-3000 EUR

Shell construction including earthworks etc. (160,000 EUR, 17.5 KS exterior, 11.5 inside and reinforced concrete ceiling including 56sqm garage with 24cm brick)

Heating installer (51,000 EUR, complete sanitary installation including Vaillant aro THERM plus VWL 55/6A including underfloor heating and Vallox controlled residential ventilation)
Will probably be upgraded because the offer only includes standard, so +2000-3000 EUR

Seems to me like a relatively good price, depending on how many m² and what kind of standard you have for the sanitary fixtures.
I already paid that much in 2021. 164m², Arotherm plus 75/6 and descaling system from Grünbeck. Some sanitary fixtures turned out to be very expensive afterward (black toilets from Italy, 800 EUR each with seat set).

I cannot say much about the other items.

We have now received our first offer for a city villa as well:
- City villa with external dimensions 10.5m x 11.0m on a slab foundation including earthworks according to KfW 55EE standard
- Exterior walls made of 36.5cm brick, interior masonry 17.5cm, plastered
- Air-to-water heat pump from Tecalor (Stiebel Eltron?)
- Solid concrete staircase with storage room underneath, concrete ceiling with insulation and floating screed on the upper floor
- including tiling work in the bathrooms and sanitary equipment
- remaining floor and painting work done by ourselves
- small extras from us that deviate from their standard: venetian blinds + 3m glass sliding door instead of hinged door in the living/dining area (although I can't say how much that costs)
- without garage
- 378,000 EUR