Floor plan design single-family house (city villa 140 sqm) on a slope with double garage

Shell construction 160k€ Earthworks 4k€, most of it will be backfilled. Roof and carport 35k€ Interior/exterior plaster 32k€ Heating, piping, sanitary 60k€ Electrical 16k€ Stairs 10k€ Windows 20k€ Tiles 20k€ Outdoor facilities 20k€ Painter 6k€ Screed 5k€ Photovoltaic system 15k€ Kitchen 15k€ Laminate bedroom 2k€ 6k€ internal development etc. and so on. And then several tens of thousands of euros more for architect, energy consultant, structural engineer, permits etc. 139sqm with basement, solid brick construction. The shell construction includes 30k€ L-stones and site filling

Now clear why a single-family house cannot cost 250k€?

There are still €13k missing for doors and roller shutters. No Venetian blinds or electric roller shutters. Those will be paid from the buffer. So the electric roller shutters. Venetian blinds are too expensive for me.

Now clearer why a single-family house can't cost 250k€?

Basically correct, but you have built 3 floors. The OP only wants to build 2, if I understand correctly. That is already a difference.

Basically correct, but you built 3 floors. The OP only wants to build 2, if I understand correctly. That is already a difference.

Where is the big difference if he builds with a slab on the slope? Maybe 35k€??? Then you can add another 30k€ and have a basement. That was our option. We decided on the basement.

Basically correct, but you built 3 floors. The OP only wants to build 2, if I understand correctly. That is indeed a difference.

That's right..