It is not cheap to build house for individual in anywhere on earth, tho. But my point was the triangular entrance is, at least for me, waste of money to build on the house. As I can see from picture and imagine this is not the first entrance. This kind of big entrance into small building(even if it will get bigger) it is pointless. Maybe move it to first entrance to make it obvious that this is an entrance of a building. If you will expand it like 2, 4 or 6 times bigger than current phase, it will started to make sense. But for now, it is waste of money to include this into the project.

I am looking it from architectural perspective. It is good design but actually not finished. That shape supposed to give you idea of the entrance but in the scenario you can enter this area from anywhere. Example, you can enter this 2 metres away from that triangle arc. The house is good, simple and modernised local design according to your link which might be easy to expend. I might have wrong idea due to now knowing local architecture.

PS: Never apologies for knowing an another language well. I understand what you meant.