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.
face264 Sep 2019 18:57
Milo3 schrieb:

For complex tasks, a master craftsman from the trade was always on site. Sabbatical year... vacation and overtime reduction.


...because you wrote it...
M
Milo3
4 Sep 2019 19:26
You misunderstood. I meant a sabbatical year (irony)... I used 200 hours of overtime and one week of vacation for that.
Y
ypg
5 Sep 2019 10:37
Milo3 schrieb:

You misunderstood. I meant: sabbatical year (irony)... I used 200 hours of overtime and one week of vacation for it.

Well, surely you accounted for your overtime hours and the vacation week in the hours you worked after regular work hours. To be fair, that should be added to the house price as your own labor contribution. In other words: include it! I think around €20 per hour is a reasonable rate to apply there.