Floor planning with a narrowing plot

However, I don’t think around 120 sqm of garden is very small either.

120 sqm of garden is huge if you’re looking for a contact lens there – but only then. You glance across a square meter of outdoor space with a fraction of a glance; that is not comparable to a square meter of living space (similarly relative to a minute, once in front of and once behind the toilet door).

Without wanting to be a spoilsport: is there
1. a project budget?
2. a cost estimate for the current

1. Yes, there is and it is high enough. See first post.
2. Yes, there is, about 500,000 Euros

And I must say, it annoys me to have to make such assumptions. I want to get suggestions in order to arrange the next appointments with the planners as constructively as possible. Here in the Stuttgart area, you cannot just pick any plots of land, you have to make compromises, and this was the best compromise we could find in over a year of searching, and the budget was not the limiting factor.

That's what I mean... unfortunately, the property is hard to capture, but as a rough sketch, that should be enough

That was not meant badly, please understand it purely constructively. I have read the 500k€ including equipment, but unfortunately that is very general. Are all incidentals included? The outdoor facilities? Especially the garage can vary significantly. Some people count a 3000€ Ikea kitchen as "equipment," others a 25000€ kitchen studio kitchen.

If I deduct everything from the budget, there are still 300k€ left for the ready-to-move-in house, which does not seem feasible to me in the Stuttgart area, given the size. We pay that amount only turnkey and not ready to move in without photovoltaics/KNX etc., and that in the deepest Saxony, where €/sqm is still significantly cheaper. That is somehow important for further planning.

We also noticed that 500 tons might not be enough. This is just a wishlist. It is actually already clear that the power storage will only be pre-installed. The garden installations will probably be done later. The KNX programming would be done by myself. We can also finance more; the bank would easily cooperate. But that really shouldn't be the point here. I don't think the idea of the built-over garage is so bad. If the workspace moves upstairs and the guest room upstairs moves to the basement, the house can be made more compact. It will never be a big garden though. If you get one or two meters more, then it's 140 instead of 120 sqm garden. But who has a big garden and 150m to the S-Bahn?

I have ... inserted a few measurements, I hope that is helpful.

Unfortunately not very much. Have your architect design something! Why bother yourself? If you want ideas, you first need the exterior dimensions of the plot (4 edges) + exterior dimensions of the building window (4 edges) and possibly exterior dimensions of the house (or affordable square meters).