Classic city villa with flat roof or double-pitched roof - ideas?

What are the blue lines – the distance of the carports from the street? (that looks like about 5m)


So 80+70 = 150 sqm ground floor total would quite reliably result in 90 sqm in the roof above both, with a gable roof.

What are the blue lines – the distance of the carports from the street? (that looks like about 5m)


So 80+70 = 150 sqm ground floor total would quite reliably result in 90 sqm in the attic above both, with a gable roof.


If both conditions are to be met, you cannot place them side by side like a garage.

Moreover, the above calculation fits "classically" like a glove, so that any deviation would lead to contortions to make it fit again.

You can plaster one part and brick-clad the other (or vice versa) and much more.

is there a formula for the calculation or is it an empirical value?

90sqm in the attic then when the knee wall starts directly on the 1st floor?

Besides, we are talking here about a granny flat and not a two-family house, which one could separate or are recorded separately in the land register.

... Yes, but building over the granny flat together with the other residential unit would not prevent that.