Is it ok to build three floors in the countryside, with one floor 3 meters, the second floor 3 meters and the third floor 3 meters 4 meters?

Of course. According to the Technical Policy Points of Rural Housing Construction, the height of self-built houses in rural areas should comply with the policy, with the first floor not exceeding 3.3 meters, the second floor not exceeding 3.6 meters and the third floor not exceeding 3.9 meters. The indoor space organization of residence should also be flexible to adapt to the changes of family structure in different periods and avoid frequent demolition and alteration. When building self-built houses in rural areas, relevant regulations and restrictions must be observed to ensure the safety and stability of the houses.