Bungalow, SD, 14x9/117m2, 4 rooms

Thank you very much for the answers!
Equipment room: These are just dummies for "equipment". Presumably, there is nothing more than the district heating intake point, the house connection, and the fuse box.
Bungalow: A family member is not very mobile.
Storage room: Good question
Sewer line between living room and kitchen: very good point - that is questionable.

: Which model houses do you have in mind?

Presumably, it only says the district heating connection point, house connection, and fuse box.

And where is the washing machine located?

Bungalow: A family member is not very mobile.

Ah, and what does that mean?

Which types of houses are you thinking of?

Bungalows.

And where is the washing machine? : Either in the utility room or in the bathroom.
Aha, and what does that mean? : Stairs to reach essential living space are difficult.
About bungalows. : Yes, we are working on that.

I am not trying to defend my floor plan, I am looking for better ideas.

How good not on foot?
What is the future prognosis?
Are aids necessary?

I am not trying to defend my floor plan, I am looking for better ideas.

No one expects you to defend the sketch. Just take a look around the internet: there are plenty of designs that meet your expectations (whatever they may be). Or just wait and see what the architect designs for you. It is somewhat tedious to discuss a very inconsistent sketch. Basically, little is right here. A design for the round shelf. Some have the patience here and have written down quite a bit for you. You, on the other hand, are very sparse with information, almost taciturn. That won't get you anywhere. If you want a lively discussion, you have to contribute something. Maybe you should read through some discussions here to get an impression of how "it’s done."