Self-decorated property needs decoration qualification.

Legal analysis: If you want to decorate the house, please find a decoration company. The decoration company will greet the property when you decorate. Even if you invite private decoration, you don't need a qualification certificate. The property has no right to take away the things used by the owner for decoration, unless you leave them in disorder and affect everyone. The state is not fixed, so we must find a qualified decoration team to decorate. The state can't control these things. Unless you violate the property regulations and throw around the decoration garbage, he can only ask you to have a good room. He didn't. If he forces you to install it there, it's basically that they haven't paid their wages for a long time and are looking for money. Installation or not has nothing to do with the owner and the property.

Legal basis: Civil Code of People's Republic of China (PRC).

Article 502 A lawfully formed contract shall become effective upon its formation, unless otherwise provided by law or agreed by the parties. In accordance with the provisions of laws and administrative regulations, if the contract should go through the approval procedures, such provisions shall prevail. If the failure to go through the formalities such as approval affects the effectiveness of the contract, it will not affect the performance of the obligation clauses such as approval and the effectiveness of relevant clauses in the contract. If the party that should go through the formalities for approval fails to perform its obligations, the other party may require it to bear the responsibility for violating its obligations. The modification, assignment and dissolution of a contract shall be subject to the provisions of laws and administrative regulations, and the provisions of the preceding paragraph shall apply and shall be subject to approval.

Article 503 Where an unauthorized agent enters into a contract in the name of the principal, and the principal has started to perform the contractual obligations or accepted the performance of the other party, it shall be deemed as ratification of the contract.

Article 504 A contract concluded by the legal representative of a legal person or the person in charge of an unincorporated organization exceeds its authority, unless the other party knows or should know that it has exceeded its authority, the representative's behavior is valid, and the contract concluded is valid for the legal person or unincorporated organization.

Article 505 The validity of a contract concluded by the parties beyond the scope of business shall be determined in accordance with Section 3 of Chapter VI of Part I of this Law and the relevant provisions of this Chapter, and the contract shall not be deemed invalid because it exceeds the scope of business.

Article 506 The following exemption clauses in the contract are invalid: (1) Causing personal injury to the other party; (2) Causing property losses to the other party due to intentional or gross negligence.

Article 507 Invalidation, invalidity, cancellation or termination of a contract shall not affect the validity of the dispute settlement clauses in the contract.