Legal analysis: Because it is difficult to ensure that the area is completely consistent with the actual drawings in the process of building construction, the state regulations allow errors within a certain range, and there should be no objection to this. However, not all the price difference areas need us to make up the price difference, but the state has stipulated that only buyers can bear the price difference within 3% of the housing area, and developers will bear the price difference. We should clearly stipulate this clause in the purchase contract, so once there is a problem, we should implement it in time according to the contract, but we should be careful not to change the contract, otherwise it may cause losses. We should make it clear that if it is within 30% of the area stipulated in the contract, then we can calculate the overdue amount by multiplying the unit price by the excess area.
Legal basis: Civil Code of People's Republic of China (PRC).
Article 240th the owner has the right to possess, use, profit from and dispose of his real estate or chattel according to law.
Article 241 The owner has the right to establish usufructuary right and security right on his real or movable property. When exercising their rights, the usufructuary right holder and the security right holder shall not harm the rights and interests of the owner.
Article 242 No organization or individual may acquire the ownership of immovable property and movable property exclusively owned by the state according to the law.