House planning 135m2 in Austria

I have added some dimensions,

The ground floor is still missing.

With a max. building height of 6.8m (eaves) or 8.5m ridge, roof slopes are not necessarily required.

Okay, a gable roof always quickly sounds like knee wall, that's why. For example, I also have a max building height, BUT an additional allowance of max 80cm knee wall.

The dining table is original dimensions

Nice, still mark the distances to the wall,

because there is no kitchen yet?

Then no one can tell you if you can fit a kitchen there?! Kitchen units are usually 60cm wide.
Mark stove, oven, sink, fridge. Also here: google Ikea. Or do you want to build your house and then, oops, no kitchen fits?

Landing stairs are definitely not mandatory

Your staircase is only 2m wide, please redraw it with 2.33m.

BTW it’s your house, but you’re not making much effort. I would have liked to see many more dimensions, and you draw two dimensions and move the sink (probably because you noticed yourself that it’s too tight in the bathroom) and completely ignore the ground floor... then you can't expect much help.

Off-topic:

I can't quite follow the calculation now,

I also cannot understand your calculation about 430k turnkey (which is NOT ready to move in) and only 350k of that. But well, if you don’t want to talk about the most important aspect of house building (whether the money will be enough) here, I don’t care.

I just wonder how the fixed price of 430k can even exist when there is not even a finished floor plan? And no selections have been made yet? Or if the incidental building costs are written down in the 430k "contract"(?)?

I just wonder how the fixed price of 430k can even exist when there isn't even a finished floor plan? And if it hasn't been selected yet? Or whether the ancillary building costs are written down in the 430k "contract"(?)?

Well, there are certainly general contractors who make a contract with you based on certain framework conditions and where the house size is fixed. The floor plan can then still be changed.

Apart from that, the headline says 135 sqm and your calculation is based on 160 sqm.

Apart from that, the headline says 135sqm and your calculation is based on 160sqm.

Yes, that was my mistake. But:

Price estimate according to architect/planner: 430,000 € turnkey, 350,000 € "turnkey with owner assistance"

What's that supposed to mean? 80k€ muscle mortgage? That's 3 skilled workers for 30 days each with 9h days ... And that smells like "I only have 350k and I'm convincing myself and the bank with 80k of own work."

Just for understanding:
- Where is the parking area?
- The yellow is supposed to be the garden – does the rest also belong to the property? Or is the black square the neighbor? Please define the property boundaries exactly.
- The wall thicknesses seem to be somewhat out of control to me. What wall thickness should the exterior wall have?
Common for sketches is 40cm (36.5 + plaster). If higher energy classes are to be achieved, please explain. Interior walls with 20cm (17.5 + plaster) are load-bearing, 15cm (11.5 + cladding) non-load-bearing can be well represented.

Hi Kaho,
thanks for chiming in here – I had secretly hoped for that.

I apologize for the admittedly somewhat slapdash image of the situation/neighboring properties.
Attached is the explanation:
The yellow-marked property is ours – almost rectangular (the northern corner is about 87°) with approx. 16x38m. The black rectangles are intended to represent the neighboring buildings. To the north, the neighbor is rather far from the boundary, to the south there is a playground (which according to the municipality will not be built on anytime soon) and a neighbor with a garage directly on the property boundary.
I’m happy to provide a drawing (albeit in pencil) later if desired?

Since we are seriously considering a Ytong kit house, the wall thicknesses have already been adjusted accordingly.
Exterior walls monolithic Thermoblock 50cm + 2cm plaster (according to the datasheet) = 52cm
Interior walls non-load-bearing 12cm + 2cm plaster (according to the datasheet) = 14cm
Interior walls load-bearing 25cm + 2cm plaster (according to the datasheet) = 27cm
Bathroom walls upstairs are, from purely theoretical considerations, also assumed to be made with Thermoblock, but 40cm (+2cm plaster), to allow for higher room temperatures in the bathroom – though this was only a consideration.

We hope to achieve an energy rating in the range of a passive house thanks to this.

I hope to have cleared up the uncertainties?

Yes, that was my mistake. But:

What is this supposed to be? €80k muscle mortgage? That’s 3 skilled workers for 30 days each with 9-hour days ... And that smells like "I only have €350k and am trying to convince myself and the bank with €80k of personal contributions".

To clarify the money issue now:
I don’t want to go into detail about equity, but it is definitely sufficient
Bank financing commitment at our desired conditions >€400k (which will definitely not be fully utilized)
State funding ~€50k

I hope this will put the annoying money topic to rest for now.
The target of €350-450k for the house does not come from the fact that we CANNOT spend more on the house, but mainly because we DO NOT WANT to spend more. If it is necessary to meet our wishes, then so be it... but the goal is definitely to keep costs low.

One thing you have to give this forum credit for. Back then, I also wasn't aware of what turnkey actually means. How exorbitant surcharges are sometimes charged for "standard equipment." Since you are already expecting 450k, your demands will not be exactly low. Therefore, let yourself be surprised in the end what you will have to do without.