Unauthorized expansion is illegal construction, and complaints are made to the land administrative departments of the people's governments at or above the county level. The law does not stipulate whether it is necessary to re-apply for land use procedures for rebuilding houses within the legally approved homestead. It is generally believed that as long as the villagers do not violate the conditions of "one household, one house", "unchanged land use right", "unchanged site", "in line with the overall land use planning and urban planning", "in line with housing conditions" and "not exceeding the homestead area standard stipulated by the local people's government", they have the original homestead with legal land use rights. Article 76 of the Land Management Law stipulates that if land is illegally occupied without approval or by deception, the land administrative department of the people's government at or above the county level shall order it to return the illegally occupied land; Violation of the overall land use planning, unauthorized conversion of agricultural land into construction land, demolition of new buildings and other facilities on illegally occupied land within a time limit, and restoration of land to its original state; In line with the overall land use planning, it shall be confiscated and may be fined; The person in charge and other persons directly responsible for the illegal occupation of land shall be given administrative sanctions according to law; If a crime is constituted, criminal responsibility shall be investigated according to law. Those who occupy land in excess of the approved amount shall be punished as illegal occupation of land.