Three bedrooms refer to three bedrooms (including a master bedroom and two secondary bedrooms) and a hall (the hall is relatively small, with an area of more than 90 square meters, and the living room and dining room are integrated).
The "big three rooms" mentioned by the other party means three rooms (including a master bedroom and two secondary bedrooms) and two halls (the hall is large, with an area of over 120 square meters, and the living room and dining room can be used independently), which are mostly used for real estate sales.
Similarly, one room refers to one room and one hall, two rooms refer to two rooms and one hall or two rooms and two halls, three rooms refer to three rooms and one hall or three rooms and two halls, and four rooms refer to four rooms and one hall or four rooms and two halls.
The essence of real estate in the legal sense is a kind of real right, which refers to various economic interests contained in real estate entities and various rights formed therefrom, such as ownership, use right, mortgage right, mortgage right, lease right and so on.