How many square meters is the standard for building houses in rural areas?

Rural villagers' homestead standard: 20 to 30 square meters per person, 3 households with less than 3 people, 4 households with less than 4 people, and 5 households with more than 5 people. The newly occupied land area for extended residence should be calculated together with the original homestead area. The standard of immigrant homestead shall be implemented according to the relevant documents of the district. How many square meters of houses or homesteads each rural villager can build must comply with the provisions of provinces, municipalities and autonomous regions, and all provinces, municipalities and autonomous regions will have detailed rules or regulations for the implementation of the land management law of their own provinces, municipalities and autonomous regions.