It is the total surface of the building or fraction, and represents the sum of the gross areas of all floors of a building, above and below ground, and is measured considering the exterior of the walls that delimit or separate the dwellings.
Include:
Balconies, terraces, marquees and private balconies;
Accessory locations, basements and private attics;
The part that, on each floor, is used by elevators and freight elevators;
Stairs and the share of common circulation areas in the building.
Exclude:
Non-inhabitable attics (which do not have a regulatory height for housing purposes);
Garages located in the basement, including access areas;
Technical areas (PT, thermal power station, garbage collection compartments, etc.);
Outdoor galleries for public use;
Basement storage allocated to the various units of use of the building;
Discovered terraces;
Public outdoor galleries;
Streets or other open spaces for public use covered by the building.
The Dependent Gross Area refers to covered and closed areas for the exclusive use of the owner , whose use is ancillary to the use for which the building or fraction is intended, and which are not included in the calculation of the Private Gross Area (eg garage , storeroom, annexes...
Liveable Area is the sum of the areas of all housing compartments, including vestibules, interior circulations, sanitary installations, storage, other compartments with a similar function and wall cabinets, and is measured by the interior perimeter of the walls that limit the proprerty, discounting...