Hello,
we are also currently building or almost finished, however in NRW and with a general contractor. Some positions still definitely offer savings potential, e.g. white plastic windows with roller shutters are sufficient. Does it have to be an Effizienzhaus 55 or would a house according to the Energy Saving Ordinance also suffice? The price difference here would be interesting. Possibly instead of an air-water heat pump, you could use a gas heating system. I would completely leave out the fireplace, it is not necessary in such a well-insulated house or even a disturbance if the house should become unbearably warm. How big is the planned garage? €4000 for a gate seems very high to me, we paid about €2300 for a 5m wide sectional door from Hörmann with "standard height" from the promotional program. Do you know how expensive the planned garage will be at all? Possibly you can order it separately and save a lot of money or make savings by switching to a cheaper construction method (steel sheet). Why do you need a carpenter? €20,000 for a kitchen is also overestimated, it can also be done for half that. I miss the point floor coverings, €10,000 for tiles is not sufficient depending on how much is to be tiled. The electrical installation with €16,000 is tight, you cannot expect many extras there (but maybe it is not necessary either). The exterior facilities are also not yet included in the calculation. Overall, the calculation for your house was unfortunately too tight. Fortunately, you have a good income and equity, so you can also build the house at higher costs with or without compromises.