Design / Improvement Single-family house 150-175m² with hip roof and basement

Maybe some inspiration can be drawn here, although it is about a hillside property, the lot layout reminds me strongly, and the house size is not far off either:

I also find the already discarded version better than the current version. The spatial layout is simply much more successful there.

In general, you repeatedly talk about capturing the evening sun in the southeast ... but the southwest is actually where it is. I would therefore possibly consider orienting the kitchen etc. toward the west, that is to the left of the plan, then the terrace can also be better oriented towards the SOUTHWEST.

Okay, the planner for the first draft is out of the running because it would not have been affordable, but that doesn't mean we can't incorporate the good points into the current plan.

Generally, you talk several times about capturing the evening sun in the southeast ... but the southwest is actually where it is. I would therefore possibly consider orienting the kitchen to the west, i.e., on the left side of the plan, then the terrace can be better oriented towards the SOUTHWEST.

If we orient the kitchen to the west, we basically won't have any evening sun anymore because it is blocked by the neighbor or the hedge and we would be sitting in the shade. That’s why the idea was to place the terrace completely in the east so that the sun can reach it well.
And then for us it was already certain that the kitchen must be in the east to have an optimal access from the kitchen to the terrace.

What is nicer in the first draft is the layout on the ground floor of pantry, dining/kitchen, living, and study rooms—that’s true.
What we didn't like so much:
- direct access from the garage to the house is missing
- the hallway is hardly present here / coat storage hardly installable
- furthermore, the dining/kitchen area, as far as I remember, is about 9 meters long, which seems extremely long to me.

That's why the idea was to place the terrace completely in the east so that the sun reaches it well here.

But there is no sun in the evening/afternoon. East is east, and west is west.

direct access from the garage to the house is missing

You don't need that in this design either, as the arrangement is better.

The hallway is not really present here / wardrobe hardly installable

There is enough space between the dining area and hallway for built-in cupboards. It is not supposed to be adopted 1:1, but the stairway design and location are much better, a structured layout. Everything looks rather elegant.
My concerns with the first floor plan are well addressed here.

direct access from the garage into the house is missing
- The hallway is not really present here / wardrobe hardly installable

See Yvonne's answer ... ypg

I also don't find the garage/house access in the other version ideal, since it leads into the stairwell to the basement and then you have to open another door to the hallway. And, with the proximity of garage door/house door, I fundamentally don't see the problem. For bicycles etc., I would anyway choose either divided gates or a door/gate the width of a door.

And, a wardrobe can be wonderfully accommodated in the rejected version.

Regarding the length of the kitchen/dining area, that actually depends on your cooking/dining/hosting habits. It’s great if you can have a really big table permanently standing. In everyday life, you can have a corner for painting/computing/playing that you don't always have to clear first when you want to eat with the family. I can easily imagine a 110x280/300 cm table.

Generally, I think the house could maybe be made 1 m narrower (the pantry could be smaller, etc.) and upstairs you could also recover that meter by adjusting the master bedroom area.

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I have now understood the thing with the terrace. However, how high is the hedge in the west and is there still a slope or something behind it? Because in summer the sun sets rather in the northwest and is still fairly high in the pure west.

Sorry, but what would really annoy me is this whole car parking situation. That someone has to squeeze to the edge here or walk all the way to the very tip, I find semi-ideal. I also don't find it very elegant if a car constantly parks right in front of the front door - but okay, that's bearable.

I have little knowledge of the regulations in Germany, let alone Austria. But what about carports? Are they possibly allowed on the boundary? In my opinion, a sufficient parking place for a car.

Alternatively, one could consider rotating the garage and giving the house a slight L-shape. That would simultaneously have the effect of creating more garden space. (green = new, red = old)