Cost of house extension and building a garage?

Hello,

so there is definitely about 20 m space for building!

regards

Well then, go to the architect you know, have the drawings for the building application created. The architect will probably be able to recommend a structural engineer. Then you can get quotes for the materials based on the plans. It will probably cost more than €50,000.

The architect wouldn’t cost us much, family friend.

And you have never spoken with him before.

Shell construction roughly 400-600,-€ per sqm, finished not under 1200,-€, without your own work, minimum standard.

Service phase 1. Basic evaluation
Service phase 2. Preliminary planning with cost estimation
Service phase 3. Design planning and cost calculation

and where does the insurance come from?
at the latest then the architect must also bill according to HOAI.

Best regards