ᐅ New Construction Exterior Single-Family Home Solid Construction
Created on: 1 Mar 2021 17:08
B
bau2022
The plan is as follows:
9,000 m² (2.2 acres) plot of land (already purchased)
Approx. 165–190 m² (1,775–2,045 sq ft) living space
Approx. 80 m² (860 sq ft) single garage
Heat pump with underfloor, ceiling, and wall heating (optional)
Ventilation system
All windows with blinds, plus an additional mesh for darkening
Planned budget is open
Photovoltaic system with approx. 15 kWp
Contractors will be involved, but with some owner participation (construction time therefore about 3 years)
Both staircases lead to the upper floor, but this will not be finished.
The staircase inside the house leads only to a small hallway. No other rooms.
The garage staircase leads to the technical room.
All paths/passages inside the house have a minimum width of 1.20 m (4 ft)
I created the drawing myself, so the measurements are not 100% accurate.
A professional planner will finalize the plans later.
I didn’t want to spend too much time learning the software.
9,000 m² (2.2 acres) plot of land (already purchased)
Approx. 165–190 m² (1,775–2,045 sq ft) living space
Approx. 80 m² (860 sq ft) single garage
Heat pump with underfloor, ceiling, and wall heating (optional)
Ventilation system
All windows with blinds, plus an additional mesh for darkening
Planned budget is open
Photovoltaic system with approx. 15 kWp
Contractors will be involved, but with some owner participation (construction time therefore about 3 years)
Both staircases lead to the upper floor, but this will not be finished.
The staircase inside the house leads only to a small hallway. No other rooms.
The garage staircase leads to the technical room.
All paths/passages inside the house have a minimum width of 1.20 m (4 ft)
I created the drawing myself, so the measurements are not 100% accurate.
A professional planner will finalize the plans later.
I didn’t want to spend too much time learning the software.
bau2022 schrieb:
Why are high costs assumed? Because you have 300m² (3,230 sq ft) of floor area. That requires a lot of earthworks and a large roof surface, which could just as well be used to build two separate single-family houses.
A section custom-made by a carpenter is usually only common in the higher-end range:
bau2022 schrieb:
The whole area is custom-made by a carpenter. 
Besides that, building things that are not needed not only costs money but wastes it unnecessarily, for example, stairs and even two of them. Otherwise, I repeat my question from #12:
K1300S schrieb:
Were there any specific questions regarding this floor plan?
W
WilderSueden2 Mar 2021 20:05bau2022 schrieb:
Why are high costs assumed?
The house area is like a bungalow with 170 sqm (1830 sq ft).
The garage is 80 sqm (860 sq ft).
Whether I insulate the garage with 60 mm (2.4 in) or 160 mm (6.3 in) does not make a real difference. Here is an example where you are miscalculating, and even I, as a layperson, notice it:
According to the plans, the garage is inside the thermal envelope. This means the garage door must be insulated and airtight. I’m sure such garage doors exist somewhere in the world, but none are standard off-the-shelf products. These are usually installed by people who want to keep their Ferrari inside the house.
If the garage is within the thermal envelope, you will also need a ventilation system for it. Otherwise, everything will get moldy when you bring in moisture during winter. This is another point that will be significantly more expensive than a normal garage where you can simply open a window slightly.
Overall, we can assume the garage costs more like living space, that is around 2000 €/sqm (approx. $185/sq ft). The living area in the bungalow is probably a bit more expensive—let’s say 2500 €/sqm (approx. $230/sq ft). This results in about €580,000 just for the building. Of course, you can reduce the price somewhat through your own work, but your specifications don’t sound particularly cheap either. Therefore, I would keep this figure as a rough estimate for now.
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