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.
Zaba12 schrieb:
Shell construction €160,000
Excavation €4,000, most of it will be backfilled.
Roof and carport €35,000, carport accounts for €12,000 of that
Interior and exterior plaster €32,000
Heating, piping, plumbing €60,000
Electrical €16,000
Staircase €10,000
Windows €20,000
Tiles €20,000
Exterior landscaping €20,000
Painter €6,000
Screed €5,000
Photovoltaic system €15,000
Kitchen €15,000
Laminate flooring in bedroom €2,000
€6,000 internal site development
and so on immediately.
Then several tens of thousands of euros more for architect, energy consultant, structural engineer, building permits / planning permission, etc.
Subtract €30,000 for lightweight concrete blocks from the shell construction and install your roller shutters instead.Thank you very much for the breakdown. You really have built with high quality.
Milo3 schrieb:
Thank you very much for the overview. You really built to a high standard I think your perception is a bit distorted. Replace my photovoltaic system with your external venetian blinds. We have the same standard, believe me.
For example, I don’t have tiled showers, nor concealed fittings, rain showerheads, etc. The bathrooms are nice but not exceptional.
Yes, the external blinds... they are not a must-have, just a current preference. However, you probably have electrically operated roller shutters… Are the external blinds significantly more expensive in comparison? I have to admit that I hardly found any information on that. We don’t need a waterproof basement... nor slope retention. Plus, all work will be done by ourselves (I know, that means a huge amount of labor hours). It’s not about sticking rigidly to a budget of 200,000 (currency unspecified), I just would like a more realistic assessment. Let’s just call the 200,000 "x"...
Milo3 schrieb:
Yes, the venetian blinds... they are not a must-have, just a current wish. But you probably have electrically operated roller shutters... Are the venetian blinds much more expensive compared to those? Honestly, I found very little information about that. We don’t need a waterproof concrete (WU) basement... nor retaining walls. Plus all the self-labor (I know, that’s a huge amount of work). It wasn’t about hitting a strict budget of 200,000, just that I’d like a more realistic estimate. Let’s just call the 200k "x"...Our WU basement will not be plastered, only primed and painted white. Plastering the basement interior costs about 8,000 to 10,000 euros, which I save compared to your basement. So your savings are almost offset. But it doesn’t matter; I’m not here to argue, just to give you some guidance. Compared to manual roller shutters, the electric ones cost about 5,000 euros. Your venetian blinds cost at least twice as much.
T
Traumfaenger20 Jul 2018 22:48Milo3 schrieb:
That’s not a big deal, which is why I’m asking again... if you throw out 2000 euros per square meter, you should be able to break that down, right? For example, 600 euros/sqm (square meter) for the shell, 100 euros/sqm for heating,...
I’ve seen and read plenty of these general statements here.You have to be aware that your house configuration, based on 13 bullet points, does not allow for a more precise estimate. The participants here are sharing their experience, which I would confirm based on my own. I also cannot imagine a custom-designed single-family house built new for less than 2,000 EUR per square meter (sqm). Get a construction guide from your local cooperative bank; maybe the savings bank or other banks have something similar. It’s a booklet with all kinds of tips, including statistical data about the level of finish that has been typical over recent years and the corresponding square meter prices to budget for, as well as several concrete house building projects with photos, floor plans, specifications, and prices up to completion. That might give you a different perspective on things.
Or maybe you know someone in your social circle who can share their detailed construction cost breakdown, their specification list with prices, etc. That quickly adds up to 40–60 pages of details, which is definitely more specific than 13 bullet points.