I have now "quickly" designed the ground floor a bit more generously.
Almost all the planning mistakes are present again except for a larger bedroom: there is no cloakroom at the house entrance, the bathroom is in the dirty area. The second "hallway", the airlock, serves as a cloakroom, again a point of contention when coming home with you, leaving shoes there with the risk of peeing on the underwear or contaminating half the house with dirty shoes, but still managing to get to the toilet. Washing hands after coming home is out of fashion again after Corona.
When entering the open space, you run into chairs that are placed in the middle of the room or traffic area. Additionally, there is again some small piece of furniture that is in the way. Air space in the north.
The larger bedroom could now be equipped with a sufficiently large wardrobe, but the bed is placed under the window. How do you want to open the window in your mid-70s without having to climb onto the bed?
This is what the existing property looks like to which the double garage is to be attached.
Unfortunately, there are no nice views from the windows to the south or southeast.
And precisely for such reasons there are, for example, air spaces. They were not created by Pinterest, but by earlier planners who wanted to bring daylight into a room in a different way, without the possibility of standard windows in exterior walls.
But even a neighbor's wall can delight if you see it as a protective wall and want to sit somewhat sheltered with an inner courtyard atmosphere.
Regarding the location of the gallery:
Which gallery? I see a storage area for fitness equipment but no gallery. A gallery is a corridor, a free corridor you can walk through that possibly expands in width.
The sweet spot with a nice view of the greenery is "unfortunately" rather the west side.
And why not plan a nice open area with a window front on the upper floor there?
To the south stands the 10m high neighboring building and the long border-side annex that, although "only 3m high, has a 3m high firewall on the border side. With south-facing windows, you would always look at a 6m high windowless wall.
Yes, I did not see the annex as such, but I pointed out the air space that can direct daylight from the upper floor into the ground floor. Don't forget or rather one must be reminded: windows are not only for looking out, but primarily for capturing daylight. And from west to east no sunbeam comes into the house because the sun has already set by then.
By the way, our current shower toilet is about 3 square meters, so the 5.6 square meters planned for the guest toilet on the ground floor already seemed generous to me.
But neither barrier-free nor comfortable.
How would you redesign the bathroom on the upper floor given the position of the window facing the street?
Not at all! In my opinion, the design belongs in the round file. Sorry, that's how it is.
It seems to me that you first decided on the exterior of the house and then arranged the desired rooms inside.
That is not necessarily wrong per se if you orient yourself on a typical house and modify the interior a bit. Most work, some things don't bother one or the other flexible person, the rest can be changed according to needs. Nowadays, you don't have to reinvent the wheel.
Everything is full of numbers, lines.
Yes, if a future builder comes here with their own plans and has to or wants to explain distances everywhere with lines and numbers, then a lot of things are already amiss. Functional and clear designs do not need that at all.
Otherwise, I/we do indeed have too many hobbies and too much stuff accumulated over the years.
Well, you need a house and you need a container. You can decide whether the container is ordered before moving in so that 40 years of broken down, yellowed, dusty, and disposed-of stuff is finally gotten rid of or whether you rent a container in addition to the single-family house where you store things you don’t want to part with. Being a hobbyist, i.e. a DIYer and tinkerer, does not mean filling and storing one room and then moving into the next. You should consider how much hobby space you actually need. A move, no matter where, is actually used to clear the air again and part with things. Otherwise, it goes into hoarding territory.
Here are your wishes sketched out, though a bit longer below, but with less sand-lime brick and DN, to make it more compact above.
Money apparently plays no role?
May I ask how you live now?