Hello Ypg,
a basement as a full storey should be "allowed" since the houses around also have residential basements.
Best regards, Franzi
I told you so :)
However: I would also think twice about the split level and/or basement. A basement, whether a full storey or not, means restrictions that you don’t have otherwise.
The price range is roughly calculated and generally said from cheap to expensive:
regular gable roof house with converted attic, gable sides guarantee you a lot of light
hip roof house with converted attic, dormers would have to be added here
two-storey, always the alternative for small plots where every sqm must be used
bungalow
bungalow with basement
For the variant of basement + ground floor you’d also have to make sure that there aren’t too many "dark" rooms downstairs.
I don’t see that as a problem because you can—again generally speaking—install many normal windows in the basement.
Whereas...
Honestly, we thought a single-level building would simply be cheaper for us since we wouldn’t have any sloping ceilings that we’d have to "compensate" with extra square meters to have enough space.
...a single-level building from a certain size has a lot of circulation area and/or you don’t get light from the windows centrally into the house anymore.
It’s also a problem if you (from the frying pan into the fire) opt for an elaborate roof structure instead of relevant sqm, which basically is the hip roof. As a U-shape with open beam ceilings etc., that structure will certainly cost you roughly 20-25k more and forgoes storage space and living area under the roof. Living space under the roof automatically arises from a certain roof pitch. You don’t have to pay for that in advance—except for the interior finishing, of course. In relation to a bungalow, you save again on the size of the base plate. Last but not least, a nice gable roof house is naturally much better in terms of energy values than a bungalow.
You now have a design, but much of it is planned too small. That’s not the alternative for building a cheaper house.
In terms of the room program you need at least:
12 sqm per child’s room, so 36 sqm
15 sqm bedroom
12 sqm family bathroom
25 sqm central dining and meeting area
15 sqm kitchen (if combined with the dining area, then less)
2 sqm pantry
16-20 sqm living room
8 sqm office (12 sqm if also to be used as a guest room)
5 sqm extra bathroom
12 sqm utility room
5 sqm laundry room
12 sqm hallway
_________
172 sqm
If stairs, then of course roughly another 10 sqm plus some hallway meters.
That would be around 100 sqm on the ground floor, 70 sqm in the attic... you basically get 30 sqm for free if you don’t dwarf the knee wall. Or as suggested: generate the storage space under the knee wall. Works well with dressers but also with DIY built-in wardrobes.
Don’t underestimate the living space under the roof slopes between 1 and 2 meters. They make a well-planned room generous. That means: not only the roof slopes constrain. Minus and plus... cancel each other out :)
The slope of 120 cm... that needs to be looked at. Some construction companies dig that out for you in one day so that you do recognize the slope but you can confidently enter the house as well as reach the terrace without boundary embankment.
I just noticed: that also means "on the slope."
Since a planner is involved and a house with 3 children’s rooms is not rocket science: is it possible that you want to reinvent the wheel by giving him tasks that cannot be solved?
You will get 170 sqm in compact construction for around €500,000.
Therefore: I would first have a standard house planned by a professional and then raise one issue or another so that your house comes out. I don’t see a bungalow in that size with that roof structure below €600,000.
I add again: or 70 sqm ground floor, 70 sqm basement, 30 sqm attic... the builder has to say what comes cheaper on the plot.