Floor plans of a single-family house with a granny flat, 280 m2 on a pleasantly small 320 m2 plot

Planning: 2 years of planning by ourselves

Oh.

Basement... is rented out because it really makes financial sense. If it was all about money for us, it would be much cheaper not to build a basement...

Is that an attempt at an oxymoron in full sentences? ;)

Regarding the parking space. Legally according to the state building code it is a single-family house with a granny flat, so 2 housing units and 2 required parking spaces. Practically, 3 housing units are possible. If you do it officially, you naturally need an additional parking space later on.

Exactly. With 3 housing units you would need 3 parking spaces and you’re still doing well. Others require 3 parking spaces per housing unit. Since we are clueless here, knowing this is important for assessing the design. So to put it briefly, everything is currently fine. If you actually realize the separation, you’re cheating mercilessly because nobody checks anyway. ;)

Trash is well marked on the site plan. Still, the tenant in the granny flat can also put it in front of the technical entrance.

And then drag the bin up the stairs? But that’s okay, he’ll drop it off somewhere anyway.

We are aware that the granny flat is a stepchild. I hope there might still be constructive criticism here, i.e. a suggestion for improvement.

And that after 2 years of planning. Well, let’s see what can still be done. Maybe you’ll give us at least 2 weeks for ideas? Usually it doesn’t work instantly with a snap.

Here we were thinking of a window in the lower left corner of the basement so that at least some daylight comes in from the south. Of course, that would require a light well and come at the expense of the garden.

I would be way too selfish for that. That would totally chop up the garden. I’m against it. :cool:

... instead of referring to a detached, larger plot and house.

Does anyone have that? I didn’t even notice. Suggestions for improvement will surely come – a bit of patience as said.

Planting comes from the architect, obviously we won’t plan any huge trees there.

Every blade of grass there is shady. But whatever. If demand is as high as you say, it would probably also rent with huge oaks in front.

What else I notice: structurally, the house is still somewhat questionable. Apart from the bedrooms, the walls on the ground floor are barely above the cellar walls. Is it all lightweight construction?

You will get the time. But please leave the technical room / entrance / stairs and the outer walls intact, otherwise it will take another 8 months at the building authority :-)
I am grateful for any constructive interior suggestions, such as regarding the toilet. The technical room is located there because all the house lines / electricity, water, sewage run there.
Regarding the statics, the architect / structural engineer sees no problem at all due to the small spans. He has already designed hundreds of houses, so as a layman, I just trust him. The building authority reviews the static calculations twice anyway during the building application.

The basement is 25 cm reinforced concrete + Styrodur and the ground floor + upper floor are Poroton T7-MW 36.5 cm. Basement + ground floor + upper floor floor and ceiling is a 20 cm reinforced concrete slab + structure/impact sound insulation, installation + covering total about 35 cm.

first attempt granny flat for discussion:

Wishing for something is hardly possible here,

But that also applies “after the building application.”
Basically, more would probably have been possible overall. Making changes now is like renovating an existing house under monument protection… but okay, it should please you.

The granny flat will also find a tenant. I find the granny flat arranged even more sensibly than the ground floor, where there isn’t even a proper dining area, but instead a dark open space in the middle.
However, the rooms in the granny flat are simply scattered without any zoning. I would rotate the kitchen, dining, and living areas and put the living room in the free corner at the bottom right, the dining area then at the bottom left, and the kitchen where the dining area is now. Then try to give the bathroom/bedroom some kind of privacy from the open space.
’s suggestion in #16 is vastly better.
Since the bedroom on the ground floor is more of an office, access to the bathroom, i.e., the private area, is probably easier to tolerate there.

A barrier-free ground floor was very important to us.

The bathroom is not barrier-free.
And then look at the furnishing (bedroom): placing wardrobes in front of exterior walls “is not done.” Because of mold.
I believe that if the bathroom and staircase were swapped, there would be better flow on the ground floor and a nicer single-family house feeling, since the location of the bathroom is very dividing.

Thank you for the information. Where m

first attempt for a granny flat for discussion:

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Actually not bad. You can’t fit a bathtub in like this and there is hardly any contiguous living space with light. However, I would not plan the wall in the middle at the bottom, so that an open-plan office can be realized. I had forgotten to say that 95% of the time the woman plans to use her club office with 2 to max. 4 people down there. Otherwise I like the design except for the unnecessary laundry room, which I would rather see as a storage room.