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]
C
Curly
19 Aug 2013 16:51
Hello, you have planned a bathroom with two doors at the top. Keep in mind that you will always need to close and then reopen both doors if someone wants to use the bathroom without disturbances. Sometimes, both doors might even be forgotten and left closed, which would mean one door remains shut. Personally, I find that too inconvenient. Best regards, Sabine
emer19 Aug 2013 17:49
Elektro1 schrieb:
Including a double garage and well-equipped electrical installations, plus an air source heat pump with ventilation system, we have a price of €256,550. Electrical work and the garage are done by ourselves. The materials for the garage are budgeted at €15,000. So we come to the mentioned €1400/m² (130 $/ft²), which is not exactly a bargain?!

The price for 171 m² (1840 ft²) of living space? Plus around €35,000 in additional construction costs.

I am planning with 150 to 160 m² (1615 to 1720 ft²) KfW 70 standard without a basement. With a garage, gas condensing boiler, controlled ventilation system, and a rainwater cistern (because I have to), and I will be happy if I stay below €300,000 excluding additional costs. And that does not include any upscale decorations or extras (no bay windows, dormers, hardwood floors, etc.).

On top of that, I still want a fireplace and an alarm system, which are not included in the budget mentioned above.
emer19 Aug 2013 17:51
Oh right: The land is also not included.
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ypg
19 Aug 2013 18:41
I also don’t find the two doors in the bathroom very well designed. Likewise, it’s not ideal that you immediately stumble over the toilet when entering through one of the doors.

In the same context, I want to mention that the children’s bed and the parents’ bed are planned right next to each other.

I would swap the home office and the child’s room, and of course adjust the sizes accordingly so that the child has an adequate living area. This way, conflicts can be avoided.

In the living room, the actual sofa sizes should be drawn in. In my opinion, miniature furniture is no longer available.

Regarding symmetry: it seems to me that the guest room window on the ground floor protrudes slightly outward. Is this intentional or an oversight?
kaho67419 Aug 2013 18:58
Hi,
The issue with the two bathroom doors has already been mentioned. I also don't find it very practical.
The terrace on the north side is essentially shielded from the sun. It tends to be cold and dark there. I would omit that corner and create a continuous terrace on the west side instead.
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Elektro1
19 Aug 2013 20:11
Slightly off-topic:
How do the two statements fit together?


Quote from Elektro1
About the house:
171m² (1840 sq ft) top floor, KfW 70
Double-layer masonry (17.5cm (7 inches) Ytong blocks, 14cm (5.5 inches) insulation, facing brick)
End quote.

Quote from Elektro1
Hello,

I would personally prefer the 36.5cm (14 inches) Poroton blocks.
The disadvantages of the external thermal insulation composite system (ETICS / EIFS) are too significant for me.
End quote.


Our preference is to use facing bricks; if this is not possible for cost reasons, we would go with the 36.5cm (14 inches) Poroton option.
At the same time, I will mention that the children's bed and the parents' bed are planned to be next to each other.
I would swap the study and the child's room, and adjust the sizes accordingly so the child has an adequate living area. This way, conflicts can be avoided.

We had that discussion as well, but since we want an open corridor (with a shelf as a room divider), simply swapping the rooms is unfortunately not possible.
Another option would be to swap the bathroom and the child’s room, but then the child’s room would be on the north side.
Personally, I hope that the sand-lime brick will provide sufficient sound insulation.
Regarding symmetry: it seems that the guest room window on the ground floor is slightly angled outward. Is that intentional or an oversight?

? Viewed from inside the room?
The terrace on the north side is basically shielded from the sun. It is always cold and dark there. I would leave out that corner and instead create a continuous terrace on the west side.

We have observed the location on sunny days several times. From about 4 p.m. to 10 p.m. there is sun at this spot. Also, some shading at this point is intentional; otherwise, it wouldn’t be covered, right?
We will likely add another terrace at the southwest corner. A continuous terrace is certainly a good idea as well.

Regarding the comment about the furniture:
The floor plan is not completely up to date in this regard.
The terrace window in the living room on the west side has been replaced with a regular window and moved into a solid wall.