What area is reported as the area of a house?

The area of a house is accurately reported as the measurement from the floor level to the exterior finished surface of the outside walls. This method encompasses the total usable space within the structure, providing a clear representation of the interior size of the house as it accounts for all areas that are enclosed by the exterior walls. This standard measurement reflects the actual livable space available, excluding any external elements such as porches or balconies.

Other options do not correctly represent the area of a house. The overall height of the structure relates to vertical dimensions rather than floor area measurement, while measuring from interior wall surface to wall surface focuses on specific areas rather than the whole house. The dimension of room sizes multiplied by the number of rooms could lead to inaccuracies because it does not consider any common areas or spaces such as hallways or bathrooms that are part of the total area.