Floor plan for age-appropriate living (new construction) in an old courtyard complex

Check out "Leitfaden Barrierefreies Bauen" on Google or other official standards as well. You don't always have to reinvent the wheel.

Exactly. The basics are already good, but in some areas it still doesn't fit perfectly.

I find the floor plan too convoluted for the requirements.
Actually, it would be good to build like in many castles. Large, wide doors in a row.

That’s exactly what we tried (and moved back and forth a lot):

[*]From the entrance you go straight into the living room
[*]The doors bedroom-dining-living-office are in one row
[*]The doors storage-kitchen-hall-office are in one row
[*]Between dining and living there is the large, wide door (as a compromise between "wall or no wall")

What would you improve about it?

Furnish the floor plan with all the furniture you have and want to scale, then see if everywhere the turning circle of at least 1.5 m is given.

Yes, that is certainly a very good idea. I will do that. Although the 1.5 m (wheelchair radius) does not necessarily have to be. Here I probably have to make a compromise between "planning ahead" and "available space". If it comes to that, one just has to furnish differently.

The deep windows are hard to furnish around.

Why? You can also put a dresser in front of a window. Of course, this has to be taken into account in the window layout so that the upper part can still be opened. That means the lower part would be fixed (which is mandatory on upper floors anyway if you don’t want bars).

Why not give the bedroom and living room terrace doors?

Precisely for this reason (see above): because then you cannot put anything in front of them.

Swap entrance and WC, so they are near the guest rooms.

:) You wouldn’t believe how often we did that in the sketches :). The deciding factor was the alignment entrance-living room door, the living room doors in that corner would then have been adjacent (or would have required further redesign). And the WC and office aka guest room are not that far apart anyway. Possibly the door between the hall and living room will be bricked up after all to increase the wall space.

Also check the “Guideline for Barrier-Free Construction” on Google or other official standards. You don’t always have to reinvent the wheel.

Yes, I will do that. Thanks for the hint.

The hallway - living room escape is not necessary. Neither is bedroom office. You have space. Families build with a smaller living area. There are too many corners.

Why not the old-fashioned window arrangement? A wide window under which a chest of drawers or sofa fits and next to it a balcony door. The dining table always has to be moved when someone with a walker needs to go outside. The living room only has wall scraps.

You can achieve a wheelchair-accessible floor plan without compromises. The area allows it. Hardly anyone notices anyway. So far exactly one person has noticed with us. Remove the living, dining wall stub and put in a large almost threshold-free sliding door. The windows at sofa height with a sill. Remove the door living - hallway. I don't like the two storage rooms. Swap entrance and bathroom. Possibly also swap utility room and bedroom. Presumably, the utility room will be in the neighboring house there; otherwise, how should light come in. That could later disturb you when sleeping. You want/must rest and children are playing next door.

Before I take into account the hassle of barrier-free construction, when you are over 60 (for explanation: my husband is as well), I would first make sure that if a hospital bed is planned, a second bedroom for the partner is included. Because here lies the crux: the bedridden person should rather have a room that is differently located than by the family bathroom (would be nice if), because they will then no longer be able to use it at all. And thus the bedroom should rather be a retreat space for the still more active resident. I also don't know if it’s somewhat unrealistic to plan to move the bedridden person, who actually seeks more peace than sun on the terrace, back and forth instead of simply letting them participate in daily activities. The living room or office with the sliding door would be a better alternative. Just my opinion: before I build an apartment/house healthy, which is already equipped with low light switches, my life would have to have experienced a lot of illnesses or physical limitations. I personally would simply build a clear floor plan without small awkward storage rooms and with wide doors. At over 60 you can still live normally for 20 years. My guiding principle for every age: plan for your next 20 years. In 20 years then you can change one thing or another. Of course, you can already have that in mind when building. But planning healthy for sick days is equivalent to a couple already planning to separate living spaces on the ground and upper floors during family planning, although there are still 20/25 years until then.

The floor plan, door widths, light switches can be planned now. Who knows what will happen in 20 years

Who knows what will happen in 20 years

That's exactly why I would only plan but not build like that!