SHON (Surface Hors ?uvre Nette)

The SHON (Surface Hors Œuvre Nette) is the result of subtracting the SHOB (Surface Hors Œuvre Gross) from certain parts of your project. It is expressed in^m².

How to calculate the net floor area :

GFA - (attics and basements not suitable for conversion, roof terraces, loggias, balconies and unenclosed areas of the ground floor, areas reserved for vehicle parking) = GFA