ᐅ Single-family house construction project, 140 sqm with basement
Created on: 20 Jul 2018 15:15
M
Milo3
Dear community, first of all, a big compliment for the very helpful tips here. I have been planning—or rather trying to plan—our house for half a year now. We have already consulted an architect and want to build with solid construction. How do you assess our project in terms of cost?
- Single-family house with 140 sqm (1507 sq ft) and full basement
- Standard according to energy-saving regulations
- Refrigerator with external thermal insulation composite system (ETICS / WDVS)
- Square, practical design, without dormers, bay windows, etc.
- External dimensions 7.49 * 11.49 meters (25 * 38 feet)
- 1 bathroom upstairs, 1 guest shower room downstairs
- Ground floor open living area with chimney (not really necessary, but we want the coziness of a stove)
- Upper floor with 3 bedrooms
- Basement with 1 finished room as an office, 3 storage/technical/utility rooms
- Planned is an air-to-water heat pump and underfloor heating
- Controlled ventilation with heat recovery system
- Triple-glazed windows with external blinds
- Soil according to geotechnical report is simple sandstone, so excellent conditions, no rising groundwater pressure
Now, the architect gave us a rough estimate and said we should calculate about 400 Euro per cubic meter (796 m³). This seems rather high to us. To be prudent, we will structure our loan accordingly since someone could get sick or have delays.
However, we want to contribute a lot of DIY work ourselves. Heating, electrical work, roof structure installation, plumbing, floor laying, and gypsum/plaster work will be done by us.
Do you think it could be possible to manage around 200k, if everything goes optimally? This is only about the construction costs; everything else like landscaping, garage, and terrace will be contracted separately.
- Single-family house with 140 sqm (1507 sq ft) and full basement
- Standard according to energy-saving regulations
- Refrigerator with external thermal insulation composite system (ETICS / WDVS)
- Square, practical design, without dormers, bay windows, etc.
- External dimensions 7.49 * 11.49 meters (25 * 38 feet)
- 1 bathroom upstairs, 1 guest shower room downstairs
- Ground floor open living area with chimney (not really necessary, but we want the coziness of a stove)
- Upper floor with 3 bedrooms
- Basement with 1 finished room as an office, 3 storage/technical/utility rooms
- Planned is an air-to-water heat pump and underfloor heating
- Controlled ventilation with heat recovery system
- Triple-glazed windows with external blinds
- Soil according to geotechnical report is simple sandstone, so excellent conditions, no rising groundwater pressure
Now, the architect gave us a rough estimate and said we should calculate about 400 Euro per cubic meter (796 m³). This seems rather high to us. To be prudent, we will structure our loan accordingly since someone could get sick or have delays.
However, we want to contribute a lot of DIY work ourselves. Heating, electrical work, roof structure installation, plumbing, floor laying, and gypsum/plaster work will be done by us.
Do you think it could be possible to manage around 200k, if everything goes optimally? This is only about the construction costs; everything else like landscaping, garage, and terrace will be contracted separately.
readytorumble schrieb:
So you are building 150sqm (1,615 sq ft) plus a basement for €230,000?...don’t forget that the €230k already includes €30k for the architect and €7k for the structural engineer. So the actual construction costs are €193k. For 150sqm (1,615 sq ft) plus a waterproof basement (is it supposed to be a “white tank” waterproof structure or just a basement with waterproof concrete?).
It’s a waterproof concrete shell foundation, including planning costs. The pure construction costs for the house are just under 200,000. I could rely 100% on my family and my wife’s family. For complicated tasks, there was always a master craftsman from the trade on site. Sabbatical year, vacation, and overtime reduction.
I completed most of the shell construction myself (from the basement ceiling upwards, although the basement was quickly built using precast elements that only had to be filled with concrete). Someone here mentioned how much a few bricks cost. I agree with that. The expensive parts were the waterproofing and the small details. For example, the roof cost me about 8,000, including 35mm (1.4 inch) insulation boards, clay roof tiles, a Velux roof window (114cm by 140cm / 45 inches by 55 inches), 180mm (7 inch) mineral wool insulation with a thermal conductivity rating of 0.032 W/(m·K), all membranes, waterproofing, sheet metal work, etc. The total size of the pitched roof is 140 square meters (1,500 square feet).
I completed most of the shell construction myself (from the basement ceiling upwards, although the basement was quickly built using precast elements that only had to be filled with concrete). Someone here mentioned how much a few bricks cost. I agree with that. The expensive parts were the waterproofing and the small details. For example, the roof cost me about 8,000, including 35mm (1.4 inch) insulation boards, clay roof tiles, a Velux roof window (114cm by 140cm / 45 inches by 55 inches), 180mm (7 inch) mineral wool insulation with a thermal conductivity rating of 0.032 W/(m·K), all membranes, waterproofing, sheet metal work, etc. The total size of the pitched roof is 140 square meters (1,500 square feet).
@Milo3 congratulations!
But you should always mention that this refers almost exclusively to material costs.
…and even then, it’s only half the truth.
What’s missing here are the costs of the lost sabbatical year, probably 643 cases of beer, 2 cases of mineral water, 356 sausage rolls, 15 cheese rolls, and I won’t even speculate about any cash payments under the table, a few euros to the workers’ compensation board, and likely a commitment of 1,000 labor hours from the other side once it comes to that.
Don’t get me wrong, I find this impressive, but since you represent about 1% of all home builders who register or read this forum, your statement only distorts what applies to 99% of the home builders here.
But you should always mention that this refers almost exclusively to material costs.
…and even then, it’s only half the truth.
What’s missing here are the costs of the lost sabbatical year, probably 643 cases of beer, 2 cases of mineral water, 356 sausage rolls, 15 cheese rolls, and I won’t even speculate about any cash payments under the table, a few euros to the workers’ compensation board, and likely a commitment of 1,000 labor hours from the other side once it comes to that.
Don’t get me wrong, I find this impressive, but since you represent about 1% of all home builders who register or read this forum, your statement only distorts what applies to 99% of the home builders here.
face26 schrieb:
@Milo3 congratulations!
But you should always mention that these are almost purely material costs.
...and yet that is only half the truth.
To take into account would be the missed sabbatical year, probably 643 cases of beer, 2 cases of mineral water, 356 sausage sandwiches, 15 cheese sandwiches, I’m not even going to estimate any cash payments, a few euros to the BG (statutory accident insurance), and presumably the obligation of 1000 hours of labor on the other side when the time comes.
Don’t get me wrong, I find that impressive, but since you represent about 1% of all builders who register or read this forum, your statement only distorts what applies to 99% of builders here.Yes, I agree with you on many points here. I also felt out of place and had unrealistic expectations in this forum. Luckily, I didn’t have to pay the family. The master craftsmen charged by the hour (an advantage if you’re a member of a football club and have a wide network). BG costs 1.8€ per helper hour, although my wife and I did a lot ourselves. So let that be a few more bucks. I paid for the beer and sandwiches out of my regular salary. Overtime is not paid and must be compensated with time off. So far, it has been fun every single day—I haven’t regretted the build for a single day.
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