and how do they get into the garden? There is no access
I find the access to the building services for 2 apartments through one apartment unfortunate. I wouldn’t want other tenants to have to go through my apartment.
I imagine a maisonette as bright and open. Here, it’s a floor apartment with UPS, still something left over.
How do you want to properly merge the apartments to use 1 duplex?
I would plan a large apartment over 2 floors in one half. Ground floor + upper floor
Exclusive garden use for the upper floor is supposed to be ensured by separating the green area on the south/east side with a fence or something similar. Access to it is through the house entrances. There will be no outside staircase to the garden.
The heating question is not yet clarified, but if each apartment should get its own heating system, i.e. a small boiler each, these will be installed in four different rooms. For the ground floor in the house connection room on the exterior wall, and for the apartments upstairs in the attic respectively.
If there is a central heating system for all four apartments, the house connection rooms on the exterior wall will be combined and even somewhat enlarged. For this, the heating rooms in the attic would be used for other purposes, such as a larger bathroom.
How do you make the maisonette brighter? Simply use larger windows??