Gross Area

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 the ground, and is measured considering the exterior of the walls that delimit, or separate the fires.

Área Bruta

They include:

  • Balconies, balconies, marquees and private balconies;
  • Accessory locations, cellars and private attics;
  • The part that, on each floor, is used by the elevator and mooring boxes;
  • Stairs and the share of the common circulation areas of the building.


  • Non-habitable attics (which have no statutory right 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 collections used in the different units of use of the building;
  • Uncovered terraces;
  • Public outdoor galleries;
  • Roads or other free spaces for public use covered by the building.
Updated on: 
11. October 2019
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Área Bruta Privativa
Corresponds to the total surface, measured by the outer perimeter and axes of the walls or other elements separating the building or fraction.
Área Bruta de Construção
The gross construction area corresponds to the sum of the private gross area and the dependent gross area.
Área Bruta Dependente
The dependent gross area refers to covered and closed areas for exclusive use, not included in the calculation of the private gross area (garage, storage room, attachments, attic, etc.).

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