Floor plan design of a two-family house, city villa with a hipped roof

I also considered a duplex at first, but that is too big and too expensive for me. I think the two-family house fits the plot better.

The old building will be demolished shortly before construction begins because the new garage will be built at this location.

Maybe someone has an idea how to design the hallway differently?

@11ant shortly before construction begins, the old building will be demolished because the new garage will be built at this location.

Knock down the main building so that an outbuilding can get a chocolate place. That's putting the cart before the horse.

This is not the main building but an old chicken coop.

Maybe someone has an idea of how to design the hallway differently?

Sure. But first I have a few questions or objections. Should both floors have the same layout, namely the one shown here for the ground floor? I basically don’t think the room layout is bad. But not good either. The example furnishings already show the drawbacks: there would be a kitchen with a suggested hidden pantry door. But the pantry will also have to be used as a storage room. Thus, the 60 cm door is simply too narrow. Conversely, the kitchen is not exactly well furnished now. One tall cabinet remains, at least two should be there. The more work and storage space a kitchen can accommodate, the better. This door is a nuisance in that regard. Also, the areas are not balanced in the open-plan room. I think there is still potential for improvement, also regarding a built-in closet in the hallway. BUT: I would definitely allow a bit more privacy for both residential units from each other roommate. This is not considered here at all. That means the balcony of the upper floor does not lie above the terrace of the ground floor. You feel looked down on from above when you’re below. The one upstairs feels disturbed by the grill of the one below. Every conversation can be overheard. I know: unfortunately, this is the case in apartment construction. But that’s precisely why people want to move out of an apartment—because of the lack of privacy. And here it could be solved very well: one gets the west (and the south), the other the east (and the south). South-facing windows for both, the upper tenant rather an east balcony because it’s windier in the west, the lower one an east terrace, which of course can also shift somewhat southward. It is currently not at all clear here who is assigned the west parking spaces and who the north garage. I would divide that accordingly so that the person from above doesn’t have to walk past the lower one’s bathroom window or kitchen. There is a lack of clear zoning. Therefore, as the owner of this house, I would not want to move in, nor rent one of the apartments, because you simply get too close to each other, which is not good in the long run for the small shared household.

South-facing windows for both, the upper unit rather an east balcony, because it is windier in the west, the lower one an east terrace, which of course can also be shifted towards the south.

I made a typo. I mean, for the lower unit the orientation to the west (west terrace). Of course, all this has to be balanced with the parking spaces, also with access to the basement stairs, which should of course be accessible to both parties. Everyone can move their trash in their "own direction".

Putting the idea aside. You really want to rent out. Why? You will never recover the additional costs of about 300k. There is no profit either. Build yourself a nice single-family house and enjoy the beautiful plot.

With a multi-family house with 4 units, it looks different.