ᐅ Realistic Cost Estimate: Single-Family Home with Challenging Site Access
Created on: 20 Jan 2023 10:50
S
schmeissrein
Hello everyone,
I have been following this forum for a while and first of all, a big thank you to everyone who shares their advice here and sometimes also speaks hard truths. I didn’t originally want to create a new thread but intended to form an opinion based on other discussions. However, you convinced me that this building project is too individual for that. So here is our plan:
- Building a new single-family house in the far north of Germany (Schleswig-Flensburg region).
- Plot size is over 1000sqm (10,764 sq ft).
- Total square meters are not so important as long as the layout works.
- Basement is not planned.
What we would like:
- Open-plan kitchen-living area of at least 36m² (388 sq ft).
- Guest room (at least 10m² / 108 sq ft) and small guest bathroom with shower on the ground floor, so that in old age, with disability, or a broken leg, the ground floor can be used independently and possibly serve as a bedroom.
- Utility room / storage room / pantry with heat pump of at least 8m² (86 sq ft) (KfW 40 standard would be great, of course).
- Upper floor with three rooms (1 office, 1 master bedroom, 1 child’s room) each at least 14m² (151 sq ft) and one bathroom. Our dream would be a “walk-in” (what a silly word – aren’t all showers walk-in?) shower to avoid having to clean those limescale-rusty, annoying shower enclosures.
- We could contribute labor for garden landscaping and painting/wallpapering; otherwise, we would prefer a turnkey build.
As for the house style, regionally typical Frisian houses or captain’s houses (with all the “cute” features like small gables, etc.) are in consideration, or also not completely unimaginative “normal” single-family houses. We are not afraid of Bauhaus-style concrete marvels either, but those tend to be more expensive. In terms of fittings, no “gold-plated faucets” and no smart home – but decent and presentable.
The big BUT: the plot is not connected to utilities, and the distance to the street is about 65m (213 ft), of which 50m (164 ft) is a paved driveway and paved parking area that would have to be dug up (across another property). The connection costs and incidental construction costs worry us quite a bit. Does anyone have experience with such a “mammoth connection” for a relatively small building project? What realistic costs should we expect for both?
We would greatly appreciate any thoughts on this project, thank you very much in advance!
I have been following this forum for a while and first of all, a big thank you to everyone who shares their advice here and sometimes also speaks hard truths. I didn’t originally want to create a new thread but intended to form an opinion based on other discussions. However, you convinced me that this building project is too individual for that. So here is our plan:
- Building a new single-family house in the far north of Germany (Schleswig-Flensburg region).
- Plot size is over 1000sqm (10,764 sq ft).
- Total square meters are not so important as long as the layout works.
- Basement is not planned.
What we would like:
- Open-plan kitchen-living area of at least 36m² (388 sq ft).
- Guest room (at least 10m² / 108 sq ft) and small guest bathroom with shower on the ground floor, so that in old age, with disability, or a broken leg, the ground floor can be used independently and possibly serve as a bedroom.
- Utility room / storage room / pantry with heat pump of at least 8m² (86 sq ft) (KfW 40 standard would be great, of course).
- Upper floor with three rooms (1 office, 1 master bedroom, 1 child’s room) each at least 14m² (151 sq ft) and one bathroom. Our dream would be a “walk-in” (what a silly word – aren’t all showers walk-in?) shower to avoid having to clean those limescale-rusty, annoying shower enclosures.
- We could contribute labor for garden landscaping and painting/wallpapering; otherwise, we would prefer a turnkey build.
As for the house style, regionally typical Frisian houses or captain’s houses (with all the “cute” features like small gables, etc.) are in consideration, or also not completely unimaginative “normal” single-family houses. We are not afraid of Bauhaus-style concrete marvels either, but those tend to be more expensive. In terms of fittings, no “gold-plated faucets” and no smart home – but decent and presentable.
The big BUT: the plot is not connected to utilities, and the distance to the street is about 65m (213 ft), of which 50m (164 ft) is a paved driveway and paved parking area that would have to be dug up (across another property). The connection costs and incidental construction costs worry us quite a bit. Does anyone have experience with such a “mammoth connection” for a relatively small building project? What realistic costs should we expect for both?
We would greatly appreciate any thoughts on this project, thank you very much in advance!
In der Ruine23 May 2023 06:1911ant schrieb:
I think the insulation between the floors in a single-family house is ridiculous.Oh, is that so? But if the living room is kept at a constant temperature level and the bedroom above cools down at night, then insulation suddenly makes sense. You wouldn’t want the cool bedroom to be cooled from below. And in summer, the heat from the upper floor doesn’t transfer down as quickly.X
xMisterDx23 May 2023 08:46That matters much less with just a few degrees of temperature difference than you might think.
Insulation works best with a large delta T. For example, 22°C (72°F) inside and -10°C (14°F) outside—that makes sense... but not with 21°C (70°F) in the living room and 18°C (64°F) in the bedroom.
Especially since heat will find its way anyway through air exchange, interior doors, walls, and stairwells.
Insulation works best with a large delta T. For example, 22°C (72°F) inside and -10°C (14°F) outside—that makes sense... but not with 21°C (70°F) in the living room and 18°C (64°F) in the bedroom.
Especially since heat will find its way anyway through air exchange, interior doors, walls, and stairwells.
W
WilderSueden23 May 2023 09:09The insulation beneath the screed is not only meant to maintain a temperature difference. It also serves to direct the heat from the underfloor heating in one direction. Otherwise, you could just install the heating in the ceiling cavity and avoid all this effort altogether.
X
xMisterDx23 May 2023 09:22That is unfortunately complete nonsense. Insulation is meant to prevent heat loss through the concrete.
This makes sense when insulating from the outside, where the temperature is typically lower than inside the house. For example, with the slab-on-grade.
However, insulating rooms or floors against each other within the thermal envelope is pointless due to the small temperature differences.
This makes sense when insulating from the outside, where the temperature is typically lower than inside the house. For example, with the slab-on-grade.
However, insulating rooms or floors against each other within the thermal envelope is pointless due to the small temperature differences.
Of course, there is temperature equalization within the thermal envelope, but with that argument, one could also stick to a single heat source in the kitchen, as was common in the past. It is more efficient when the heat is directed specifically where it is needed. Otherwise, you might need even more underfloor heating area there.
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