Hm... since the heating system must be within the thermal building envelope, I am a bit surprised about the location of the boiler room. Not only does this mean that the garage must also be built within the thermal envelope, but also that the boiler room becomes the very back corner of the building (long pipe runs).
For us, it would not be possible at all to place a slab over the pipes running to the property.
Regarding the floor plan: I would put more windows, or the patio doors, on the south side of the house.
Otherwise, the ground floor will be too dark in winter because the sun doesn’t reach the west side.
Conversely, I would not put floor-to-ceiling windows facing the street... see also the recent thread from the weekend on the topic of floor-to-ceiling windows ....
If it were mine, the T in the bathroom would be removed, the bathroom at least 20 cm narrower in favor of the dressing room.
I always argue that you have to take a step back in the dressing room in order to be able to view all your clothes in width. Besides, you’re not always alone in the dressing room... if it’s too narrow, it becomes a clutter hazard.