ᐅ Floor Plan & Construction Costs: Opinions Needed!

Created on: 19 Aug 2013 15:05
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Elektro1
Hello dear forum community,

Attached is the floor plan of our new single-family house.
We would be interested in your opinions,
and we also ask the building professionals here to estimate the construction costs (house only).
The south side of the house is (unfortunately) facing the street, but this is not a big issue for us,
as it is a very quiet and small private residential area.

About the house:
171 m² (1840 sq ft) top floor setback, KfW 70
Double-wall masonry (17.5 cm (7 inches) Ytong, 14 cm (6 inches) insulation, facing brick)
Triple glazing with 6-chamber profiles (Ug value 0.7 / Uw value 0.9)
10 cm (4 inches) perimeter insulation
KfW 70
Heating system either gas condensing boiler with solar or air-source heat pump
Clear ceiling height 2.60 m (8.5 ft)
Roof pitch 25°
Excavation depth 40 cm (16 inches), ground construction 80 cm (31 inches) fill sand

We look forward to your suggestions.

Best regards

[HR][/HR]
aytex19 Aug 2013 15:57
I have to honestly admit that 1500€/m² (approximately $140/sq ft) seems too high to me...
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backbone23
19 Aug 2013 15:58
... as a KfW70 energy-efficient house.
aytex19 Aug 2013 16:00
Yes, even for KF70, €1500 per square meter (approximately $1600 per square yard) seems too high to me. However, I am calculating without a basement and double garage...
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Elektro1
19 Aug 2013 16:01
I guess it will come down to this....
Where is the building site located and how many construction companies have you compared?

The foundation slab is scheduled for this year, with the rest starting immediately after the frost period.
We have three other offers, which are within the same price range but partly include lower-quality services.
Sorry, but every view as a zip file? Can you not provide jpgs instead, so the floor plans can be viewed immediately? Otherwise I have to download, unzip, and open each file.

Sorry, it wasn’t possible otherwise. I only have everything as PDFs, and converting them to image formats makes the files simply too large. 20kb is not that much storage space for an image anyway.
Here in this forum people often calculate with €1,500 per square meter (approximately $165 per square foot) of living space... for a "standard" house.

Maybe the building expert will add something about this.


Well, I do hope this here is not considered a "standard" house. :-(
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Elektro1
19 Aug 2013 16:03
Also like this: Construction site in northern Germany, Bremen area
Musketier19 Aug 2013 16:19
A bit off-topic:
How do these two statements fit together?
Elektro1 schrieb:

About the house:
171m² (1840 sq ft) attic floor, KfW 70
Double-layer masonry (17.5cm (7 inches) Ytong, 14cm (5.5 inches) insulation, brick facing)
Elektro1 schrieb:
Hello,

I would personally lean towards the 36.5cm (14 inches) Poroton.
I find the disadvantages of the external thermal insulation composite system (ETICS) too significant.