Is it illegal to hang an air conditioner on someone else's balcony?

Hello, dear, I'm the teacher who asked the gold medal answer for legal consultation. Glad to serve you! _ Violation of civil law. The owner of the air conditioner outside the neighbor's wall is unreasonable. Although this wall is shared by both parties, the extension part is a public wall, which belongs to all owners. As the owner, he has the right to reasonably give priority to the use of the external wall of his balcony. As long as it doesn't hang on the external wall of your own house, occupy the external wall of other households or cause obvious noise pollution and hot air emission to you, you can negotiate with him to let him move the outdoor unit to his external wall and try not to point at other people's windows and cause trouble to others. If negotiation fails, you can find a property or a street office for mediation. If all else fails, you can complain directly to the relevant departments. The law stipulates: Article 272 of the Civil Code of People's Republic of China (PRC), the owner's rights and obligations to the exclusive part. The owner has the right to possess, use, benefit 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. The relationship between the owner and the realty service enterprise or other managers in Article 285 of the Civil Code of People's Republic of China (PRC). Entrusted by the owners, the realty service enterprise or other managers shall manage the buildings and their ancillary facilities within the building division in accordance with the provisions of the realty service contract in Part III of this Law, accept the supervision of the owners, and promptly answer the owners' inquiries about realty services. Property service enterprises or other managers shall implement emergency measures and other management measures implemented by the government according to law, and actively cooperate with relevant work. Article 287 of the Civil Code of People's Republic of China (PRC), the owner has the right to require the construction unit, the property service enterprise or other managers and other owners to bear civil liability for acts that infringe upon their legitimate rights and interests. Dear, I sincerely hope I can help you. Wish you a happy life! _