The prices for building a house are calculated per square meter of constructed area. To eliminate any doubt, we define the terms below. There is a clear difference between "square meter of constructed area" and "square meter of constructed area spread out."
The spread out constructed area of a building, i.e. the sum of the constructed areas on each level (on the exterior of the walls). It represents the sum of the horizontal areas of all levels of the building, delimited by the exterior contour of the building envelope. According to the law, the following are not included in this calculation: the area of basements with a maximum free height of 1.80 m, the area of basements intended solely for car parking, technical spaces, or spaces intended for civil protection, the area of balconies, loggias, open and uncovered terraces, and non-walkable terraces and canopies, as well as the area of unbuilt-up roofs, pedestrian / vehicle access paths within the grounds, exterior stairways, and protective sidewalks.
The constructed area of a building, i.e. the area measured on the exterior of the walls at ground level. It represents the area built at ground level, with the exception of uncovered terraces of the ground floor that exceed the plan of the façade, platforms, and access stairways. The projection to the ground of balconies whose level is less than 3.00 m from the level of the landscaped ground and of closed loggias of the upper floors is included in the constructed area.