Construction costs are currently skyrocketing

I still see people installing controlled residential ventilation systems without enthalpy heat exchangers. Please don’t do that, in winter it gets too dry.

I cannot generally agree with the statement to include an enthalpy heat exchanger in the controlled residential ventilation. It depends on the primarily used building materials (concrete, Ytong, clay, brick, +/- ETICS, etc.), the residents (especially the number matters because of moisture input) and the habits of the users (e.g. no dryer in the house because laundry is hung up). Also, the humidity cannot be set on any of the devices I know, so you cannot regulate !independently! of the air volume flow; it could thus also become too humid in the house if the aforementioned aspects already swing in the corresponding direction. You may also initially have problems getting the moisture out of the new building.

The technical system should always be tailored to the overall situation of the future residents.

Back to the topic. Interest rates are starting to rise again after a short pause. The ECB is ending the bond purchase. There will probably be an interest rate hike by the ECB from July or autumn.

The 60s did release oversized living rooms with panoramic windows on a really large scale. Of course, a lot needs to be done energetically. …

Yes, basements. Large plots. Shutters. Pane windows. Little towers. Conservatories. Big trees in the garden. High ceilings. Real parquet. ... My son-in-law even has a small bell tower or bell tower addition on the roof of his house. :) You just have to like it, new builds have their advantages too.