Single-family house floor plan, before errors occur

Hello,
As the saying goes, many hands make light work.
Since various mistakes can occur in the planning of such a house construction, I wanted to ask if you could possibly take a quick look and maybe point out any “errors.”

Without information and ideas, this is difficult, so here are a few brief details and thoughts from us.

The house is intended for 4 people with a guest room and a small office, and it is very important to us that a person in a wheelchair can live on the ground floor while the children, guests, etc. could live upstairs in such a case. Unfortunately, the garage could not be made wider due to the plot. The living room is deliberately not huge and is separated by a sliding door so that it is really only for watching TV; the focus should be the dining room/kitchen.

Best regards
Ich

Can you please fill out the questionnaire?

https://www.hausbau-forum.de/threads/grundrissplanung-unbedingt-vor-Beitrag-Erstellung-lesen.11714/

How limited is the wheelchair user?

Have you marked the traffic routes and turning circles?

Wardrobe for the wheelchair not usable
dining table access to terrace and living room acceptable as an emergency solution, necessary cramped. Bedroom as well
Where should the wheelchair go in the living room?
Bathroom backwards into the shower? It’s too narrow to turn, how to get onto the toilet?

I would remove the door to the garage
The building services technology is your storage room, your utility room, and your laundry. There is a lack of space

Draw your existing or desired furniture to scale
Draw the traffic area including necessary radii

Wow. Which Viebrockhaus was the inspiration here? - a captain’s gable in the front and a Frisian gable at the back, a matter of taste. But above the terrace’s flat roof – the garage doesn’t have one at all (?) – there’s a pitched roof which raises the question of how it drains.

It is very important to us that a person in a wheelchair can live on the ground floor and that children, guests, etc. could live upstairs in such a case.

“In such a case” and “could” sounds like an uncertain diagnosis of the (potential?) wheelchair user, and in such a house, they could only participate in family life up to the stairs. So far, this does not sound like well thought-out planning at all.

First, please fill out the questionnaire.
No arms, no cookies!
Accessible housing looks different, though.