There is only one kind of house in Tianjin. What are they? What is partial independence and what is China independence? The more specific the better!

Since the 1960s, apartment buildings with unit structures have appeared in Tianjin, but they are all built outside the old city. This apartment building can be divided into 1 room, 1 hall, 2 rooms, 3 rooms, 1 hall, 4 rooms and so on. The apartment in 1 room and 1 hall is commonly known as "single hall" (in the early days, the single hall was very small, and some even had no hall, just a narrow aisle, commonly known as "straight door". In the later period, there was only one hall in the single stage, so it was also called "partial independence"); 1 Room 2, commonly known as "single-sided", with one large room and one small room. If two houses are equal in size and in the same direction, it is called "single side"; 3 rooms 1 hall is generally 2 large rooms, 1 small room; 4 rooms 1 hall consists of 2 large rooms, 2 small rooms or 2 large rooms, and 1 consists of large and small suites. No matter what kind of apartment structure, the area of a big house is around 14- 16 square meters. The cabin is about 8- 12 square meters. And each unit has facilities such as kitchen, bathroom, water supply and drainage pipes (later there are gas and heating facilities, commonly known as "double gas"). The building with unit structure is usually 5-7 stories high, followed by high-rise residential buildings with 20-30 stories high, with stairs and elevators. Each building has several doors and each door has several units. Usually there are 2 to 5 units on each floor and door, and the pattern is different. ?

With the development of science and the progress of society, the forms of apartment-style residential buildings are also changing, and there are many kinds of apartment structures such as duplex and staggered floors. Many villa-style residential quarters built around the 1990s have added new colors to modern residential buildings. ?

Due to the closed housing form of apartment-style unit structure, the traditional neighborhood relationship model has been changed, that is, the neighborhood relationship of moving in and out and helping each other when bungalows and quadrangles lived together in the past. Now the neighborhood relationship is indifferent and unfamiliar, and some even haven't seen each other for several years.