Living room is the premises designated for living and separated from other premises (rooms) with partitions. Mansards, attics, heated patios and terraces, equipped and suitable for permanent living in them throughout the year are included in the number of living rooms. Kitchens, hallways, corridors, bathrooms and shower rooms, pantries, and other ancillary facilities are not included in the number of living rooms in the apartment and hostel.
The number of living rooms occupied by the household is numerated (e.g. 1, 2, 3, 4 .. 10, etc.) in a specially outlined framework.

The mark part of the room is written down in case a household occupies only a part of the room.

[p.15]

If a household occupies two or more rooms but a part of them is rented, then the total number of living rooms occupied by the household is indicated (including those rented).