Is it illegal to give a rectification order to the community after the property is filmed?

Not illegal. It is legally effective for the property to issue a notice of rectification of illegal construction in the community. If it is not demolished at the expiration date, the property can forcibly dismantle the illegally built houses for you. Because illegal buildings often need to destroy the load-bearing wall, and once the load-bearing wall is destroyed, the safety of the building will decline, and serious cracks will appear in the whole building.