Why are there two kinds of property fee standards for resettlement communities?

There are two different housing types in resettlement communities. According to relevant public information, the housing types are affordable housing allocated by the government to eligible low-income families free of charge, and the property fees of these houses are paid by the government or relevant departments, and the owners do not have to bear the property fees. Housing types are commercial houses built and sold by real estate developers, and the property fees of these houses are borne by the owners themselves.