Floor plan of a bungalow approx. 150m² - What do you think about it?

We don’t have two cars, only one! The first garage at the house is simply planned as a storage room for bicycles, garden furniture, etc.

Oh, I see. Yes, then you should definitely take a look at ’s house here. There, there isn’t even a garage for the car, only one for the workbench. But even if you want two garages, I wouldn’t design them as a double garage with this intended use (and certainly not with a double gate twice over). There is also a kind of airlock function of the utility room there; the “mayor’s entrance” is not used in everyday life. And I believe it was in ’s house where (also in a bungalow with an attic used only for storage) the staircase to it even starts in the utility room. That way, the lady of the house has removed the thing from the decor-sensitive area. Having personal homeowner experience is good. It allows you to plan much more sensibly. Sometimes also with the consequence of reconsidering KfW55.

And, another site plan, so one can assess what else might be possible?

Here is the requested site plan! On the south side of the house, there is an access road that must be preserved. We must keep a distance of 3.5 m from the western boundary, as there is a channel running at about 2.5 m.

Thank you very much for the suggestions of the houses I should look at. I will definitely do that. How was the thing with KFW 55 meant? Be reasonable and build KFW 70 or think of the successors and go for KFW 40? I would have only done KFW 55 to be somewhat prepared for the future. I am just as unsure about that as with the central residential ventilation. We are used to opening windows to ventilate, but what comes after us?

Show the entire property, including the connection to the street from which the driveway branches off. Which of the two streets do you want to use as your property access?

50 m highway means: it runs from there at a distance of 50 m? – with what (including terrain-related) soundproofing in between?

Wie war das mit der KFW 55 gemeint.

I think Karsten (Nordlys) only met the Energy Saving Ordinance. The subsidy is offset by additional costs. The ventilation is technically secured in the windows, not high-tech.

The street to the north is the street to which we will be connected, via the access road (to our current house) that already exists.

Yes, 50 meters away is the left edge of the highway. The highway is on an embankment about 7 meters high and has a noise barrier of about 5 meters.
Therefore, even if ventilation is needed, a central residential ventilation system will be installed and not a decentralized one. I think the holes in the wall transmit the noise from outside to inside (with decentralized ventilation).