Buying a house is valid only if it is signed by a guardian. When a minor buys a house, either parent is legally effective as the legal agent of the minor in civil activities, and then the father or mother applies to the bank as the loan applicant. Such a house sale contract is valid.

legal ground

Article 22 1 of the Civil Code stipulates that the parties shall sign a house purchase and sale agreement or other agreements on real estate rights in order to ensure the realization of real estate rights in the future;

According to the agreement, you can apply to the registration authority for advance notice registration. After the advance notice registration, if the obligee without advance notice registration agrees to dispose of the real estate, the real right effect will not occur.

After the advance notice registration, the creditor's rights are extinguished or the application for registration is not made within 90 days from the date when the real estate registration can be carried out, and the advance notice registration is invalid.