How to calculate the number of rooms in a house

How to calculate the number of rooms in a house?

The number of rooms in an apartment or house takes into account all the living rooms with an area between 9 and 30 m². It is advisable to exclude for example the bathroom, the kitchen or the toilets.

Which parts are not taken into account?

The number of rooms in a house is not from taking into account all the living space. It should therefore not include:

• The bathroom(s).
• The kitchen.
• Toilets/WC.
• The entry hall.
• Corridors.
• The landings.
• The cellar.
• The laundry room.
• The cave.
• Unfinished attic.
• The staircase.
• The boiler room.

In practice, the only rooms taken into account for the number of rooms in a house are therefore often the living/dining room, the bedrooms, the office, or even the library. This distinction between "main rooms", intended for living or sleeping, and "utility rooms" is defined and imposed by article R111-1 of the Construction and Housing Code.