Is it illegal to rebuild an old house without the signature of a neighbor?

Legal analysis: in the process of building approval, you don't have to ask your neighbors to agree to build a house. It depends on the specific situation. It is not illegal to sign if it does not affect neighbors. If you violate the relevant provisions of the Civil Code, you need to make corresponding compensation after being reported. Application procedure for building a house on the original homestead: (1) After verification by the people's government at the township level, apply to the planning and construction administrative department of the people's government at the county level for building a house; (2) According to the needs, solicit the specific opinions of the neighbors on the location and boundary of land use; (3) The county-level administrative department in charge of construction planning shall, according to the requirements of township and village planning, put forward design requirements to the land builders; (four) the issuance of rural construction planning permits.

Only those who use their houses for commercial activities need to ask their neighbors' permission. As a business place with individual business license, in order to prevent disturbing people, houses in residential areas are generally certified by owners' committees or community neighborhood committees. Therefore, if you can't provide the above proof, you can't apply for a business license. I suggest you tell your neighbors about your business. The industry you are engaged in, especially the industry you are engaged in, does not disturb the people. Just ask them to sign it. All local administrations for industry and commerce have fixed text formats. Go to the lobby to get a text format, and then fill it out as required for the neighbors to sign.

Legal basis: Article 272 of the Civil Law states that the owner has the right to possess, use, profit from and dispose of the exclusive part of his building. The owner's exercise of rights shall not endanger the safety of the building or damage the legitimate rights and interests of other owners.

Article 279 of the Civil Code: The owner shall not change the house into a business house in violation of laws, regulations and management regulations. If the owner changes the house into a business house, in addition to complying with laws, regulations and management regulations, it shall also be unanimously agreed by the interested owners.