A room is any space, within a dwelling, that is enclosed by walls at least 2 meters high and that has a surface of at least 4 square meters, enough space to accommodate a bed.
A. Number of rooms used for residential purposes
In this item, you should include living rooms, dining rooms, bedrooms, studies, recreation rooms, servants' quarters, etc. The kitchen, bathroom, hallways, vestibules, etc. should be excluded.