That should be around 150 sqm for the main apartment and about 70 sqm living space for the granny flat; approximately 220 sqm total estimated according to DIN. Broken down from the example presented and with the same equipment, you should realistically calculate with EUR 310-330 thousand per semi-detached house.
Wow cool thanks for the overview, but please don’t scare me. But I think / hope we can calculate less because:
the house is smaller 11x8.5 = about 140 sqm + granny flat which you couldn’t really see properly in the picture with only 40 sqm, only the front area / the back is normal basement and heating. They won’t get ventilation in the granny flat....
It is like this that now there is a house on it that will be demolished, therefore we also have less excavation and earthwork / hopefully. Here is my current exact calculation: Please correct me!!!
Land value €81,880.00 (Half aunt, half my mother)
House demolition €8,600.00 (€17,200) I only have to pay half
Development fresh water?? €2,000.00
House connection €500.00
Construction power €600.00
Construction insurance €500.00
Rainwater drainage from gutter €1,000.00
Excavation/landfill/clean layer €4,000.00
Electricity / telecom €2,000.00
Fresh water connection €2,000.00
Surveying €1,800.00
Building permit €2,500.00
Building permit - architect included
Sewer €4,000.00
Wastewater control shaft €1,000.00
Notary €2,000.00
Leveling €3,000.00
Staircase entrance €1,000.00
Entrance stair landing €1,000.00
Notary arrangement Melanie+Philipp €1,200.00
Sum side costs €28,100.00
Payout half plot (aunt) €44,680.00
Land transfer tax €2,234.00
Basement construction €43,000.00
Basement self-construction granny flat 40 sqm €15,000.00
Prefab house €200,000.00
Kitchen €8,000.00
Furniture €7,000.00
Total complete €358,614.00
We can’t afford more than €360,000?? €1,500 / month