Christian.
Lets get some measurements.
Get a height to eaves and get a length across the back of the building and down 1 side.
I'll work out the square meterage rough;y from those measurements before deductions.
You've got 2 gable ends.
Some tricky little windows.
2 bay windows
Gonna need scaffold to do the gable on the front of the house due to the porch/little roof thing.
Is the garage included in the price???
Jake