Ground floor bungalow approx. 115m² for 2 persons

Wow, definitely thanks already for the work you put into the spontaneous draft.

You're welcome.

rigid specifications like all rooms opening off the hallway and a central entrance area should separate.

whether we really need a side entrance or should place the main entrance as originally intended on the short, i.e. east side.

The side entrance is also part of rigid specifications or ideas that many builders have who want to keep the entrance clean with children and dogs. But you don’t necessarily have to take that on together if there’s no reason for it. Staircases and hallways from which rooms branch off have the advantage that with families you can achieve zoning so that you don’t disturb each other and everyone can do their own thing sometimes. You can neglect that with two people if the daily routine allows it.

Personally, I only miss the sports area. Treadmills and rowing machines are not particularly decorative. That’s why I would like to have them out of the living area.

But then we quickly reach the point where 110 sqm are no longer enough. The 100/110 sqm houses I know don’t have a dressing room and just—with the exception of a manageable multipurpose room—a small additional room as an office/guest room. They also only have a small guest toilet and are not barrier-free. I often then suggest a staircase to an attic which, once expanded, has a large multipurpose room and possibly storage options. But that also means more costs… Basically, it can be said that you need a floor plan that is so flexible in the dining and living area that instead of eating you can pursue your gaming passion and possibly convert it later. A room planned as an office or children’s room in the standard floor plan then as a sports room. And it doesn’t have to be barrier-free. The walker apparently might not even be needed?! Have you already decided on the company? They also build individually.

Have you already decided on the company? They also build individually.

Currently, we are planning the next discussions with two more companies. We will probably use your sketch as a basis. It is currently our favorite among all the floor plans we have come across.

Currently, we are planning the next meetings with two more companies.
We will probably use your sketch as a basis. It is currently our favorite among all the floor plans we've come across.

I'm glad to hear that. However, every company has its standard house types, which are usually easy to modify, but each company has its own individual measurements.
Basically, modifying a standard house is also a good decision if you want to build clearly and cost-consciously.
Considering that a sports room is missing and I'm just doing this quickly, you are welcome to continue asking for help with the floor plan.
I might still get around to changing the floor plan a bit, but probably then the walk-in closet will be dropped or the pantry will be smaller.

I have now made some modifications. It is not barrier-free or low-barrier, but you can certainly live in it well into old age – including the sports area.
I have still marked the table, but also a counter at the open kitchen. If the kitchen should be closed off, that is not a problem either. I have dispensed with an exterior door in the drying room because the entrance door is accessible. And if needed, you can use the side door of the kitchen. TVs are mounted on the walls; the sports area could be opened with a sliding door to watch TV from there.
The washing machine and dryer are in the bathroom in this case.
A nice functional house for 2 people. If it later should not be enough, you have to build on the lower end of the plan and enlarge the living room and gaming room.

We now have a floor plan that we like very much, except for the narrow floor-to-ceiling window in the bedroom. Only my gut feeling is uneasy, and I don't know whether this is just last-minute panic or if we are overlooking something important/useful. Therefore, I am grateful for feedback once again.
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Huh? Where is the old garage to be preserved now? Where is the sports room? First no dining table at all and now 2 dining tables? And if you don't put them, then a lot of unusable=useless spaces. This plan has nothing to do anymore with what once put together based on your requirements.