rough site planning 819m²

I actually just want to know how you/you all find the proposal now and if I could still improve anything.

Yes: You could do many things better if you would stick less to your bungalow plans or, in my opinion, unfavorable building positions.

Your proposal was, as far as I remember, that we place the house sideways and the garage in front. In that case, we have very little plot area at the back, or am I wrong?

Garage close to the street means less land coverage ratio consumption for the driveway, more garden, and in this case also more freedom for placing the house sideways.

For example, the roof overhang on the house (probably 40cm hip roof) causes problems when I place the garage or the carport next to the house.

Bungalow more or less also means "eave height approximately equal to garage height" and thus that either the two roofs meet, or the garage slips under the main roof (which in turn means that the roof no longer has a rectangular outline and becomes more complicated as a hip roof).

But we now have an apartment with 142m²

Then draw it and let us test its floor plan as a basis.

I already wrote that: the exclusivity of your office.
That's the chocolate side of the whole house (apart from the fact that the location is not suitable for a home office). And I think, in a family household, the space should be chosen somewhat downhill, while living areas should get the location.
But that's my personal opinion.

You are of course right. It is the chocolate side. To be honest, I would also prefer a different location in the house. But as you have already pointed out, there are not many large 5-room bungalow floor plans. Ideally, I would like my study in the basement. However, the developer advised us against this due to the high groundwater level coming from the nearby Eine river. I accept that; for me, it poses too great a risk if something happens later in the basement, despite the waterproofing. Placing the study under the roof is, strictly speaking, also stupid. Have you ever had an attic apartment? Cold in winter and very hot in summer despite insulation. Suitable for a bit of playing under the roof and as a storage room though.

Oh... I withdraw my question. You are tied to the developer, right?

Exactly, we are tied to the developer.

Yes: You could do a lot better if you were less attached to your bungalow plans or, in my opinion, unfavorable building positions.

Garage close to the street means less land coverage consumption for the driveway,
more garden, and in this case also more freedom to position the house crosswise.

Bungalow means more or less "eave height approximately equal to garage height" and thus, either the two roofs butt up against each other, or the garage slips under the main roof (which in turn means that the roof no longer has a rectangular outline and becomes more complicated as a hip roof).

Then draw those up and let us test their floor plan as a basis.

You say I should position the house crosswise and place the garage close to the street. But if I do that, a lot of open space would arise in front of the house or to the right side of the garage. I can imagine that we wouldn't use the space in front of the house but would mostly stay behind the house. The garage must be 5 meters away from the street.

Here is the floor plan of our current rental apartment. I know myself that many things are not perfect. But what I really like is that the living spaces are nicely large and there is little traffic area. By the way, I don't use the study as a study but rather the larger children's room.

Placing the study under the roof is actually dumb. Ever had an attic apartment? Cold in winter and very hot in summer despite insulation. But suitable for a little playing under the roof and as a storage room.

This is just a matter of planning. If it's too hot for you in the summer, plan an air conditioning system in the house or in the affected rooms. What do all homeowners with gable roofs do?

Apart from that, I don't want to talk you out of the bungalow, but in my opinion your plot of land doesn't look very big as it is. Unfortunately, I couldn't find any information about it right away. As you yourself have already noticed, bungalows with 5 or more rooms are offered less frequently. I wonder why?

If I were in your place and wished for a bungalow, I would probably still convert the roof for the kids + utility room.

About the attic conversion.
Do not compare older buildings with new ones.
The heat no longer escapes due to insufficient insulation, but through window openings. Double casement windows often do not have blinds, which is why a gable is often planned where real windows with roller shutters can be implemented.
A house needs a roof anyway, so put the basement replacement in the attic, but consistently with an office, sports room, and storage options. This consistency requires a planned staircase.
There are now enough hybrid houses that provide half of the upper floor as fully usable living space.

Here is the floor plan of our current rental apartment.

Sorry, I hadn’t considered that it might be a conversion of an old building. There will probably be little transferable here, but it was worth a try. I have oriented your property to the north and placed a 5m line to the street as well as two 3x6 m (exactly building gap widths) border garages. "Next to it," I inserted your sample floor plan in the same scale, which wouldn’t quite fit no matter how it was rotated. I hope this makes it clear that this space would be better suited for a typical square-like "city villa."

This is just a question of planning. If it’s too hot for you in summer, plan for an air conditioning system in the house or in the affected rooms. What do all homeowners with gable roofs do?

Apart from that, I don’t want to talk you out of the bungalow, but in my opinion your plot of land doesn’t look very big already. Unfortunately, I couldn’t find any information about it right away. As you’ve already noticed yourself, bungalows with 5 rooms or more are rather rarely offered. Why do you think that is?

If I were in your place and wished for a bungalow, I would probably still convert the roof for the kids + utility room.

Regarding attic conversion.
Don’t compare older buildings with new ones.
The heat no longer comes through lack of insulation, but through window openings. Double casement windows often don’t have shutters, so people like to plan with a gable, where real windows with roller shutters can be realized.
A house needs a roof anyway, so put the cellar replacement in the attic, but consistently with an office, gym, and storage options. This consequence requires a planned staircase.
There are now enough hybrid houses that provide fully functional living space upstairs in half the area.

Yes, with air conditioning and heating you can control that. Actually a good solution.
I haven’t had a modern attic apartment yet. I might ask the family upstairs when I see them. They have the same apartment as us, just under the roof.

Putting the office under the roof is a good solution and would increase the choice of floor plans and reduce the size of the house. For us it is first important that family life takes place downstairs. For me it’s good because I then have my peace. That’s exactly the kind of food for thought I need! Thank you very much! But one question about attic conversion: My dad is doing that now on his house too. He has trusses as roof construction, whatever exactly that is. Recently he placed a proper staircase in the hallway. But he also told me that warm air now comes from the attic into the apartment. What all needs to be done so the attic can be converted so I can use it as an office? I have to be able to work there both in summer and winter! Is a 30° roof pitch sufficient for an office, playroom, and large storage room?

I oriented your plot to the north and equipped it with a 5m line to the street as well as two 3x6m (i.e. exactly building boundary width) boundary garages. "Next to it" I inserted your sample floor plan in the same scale, which would not quite fit no matter how it was rotated. I hope it is recognizable that there is better space here for a typical square "urban villa."

At the front of the property, behind the 3m boundary, I have at least 13.5m available. Left and right not counting 3m each. Plenty of space at the back. That means the house definitely fits on there. In my drawing I had a rectangular 13x16.5m bungalow. So practically exactly the bungalow’s dimensions. That fits fine. Only the garage doesn’t really have a good place, even if I place it right at the house as in the picture, it is only a 5x6m garage I used. Not really suitable for getting in and out. For me (at least at the moment) no problem but for my wife it is.

I know that a square urban villa would be better for the plot. But my wife and I want family life to take place on one level. We will compromise for that. If it ends up being an urban villa in the end, so be it, but I won’t give up that quickly.