Legal analysis: Signing a house lease contract is not a necessary condition for the validity of the house lease. Therefore, failure to sign a house lease contract does not affect the validity of the house lease.
Legal basis: "People's Republic of China and Civil Code"
Article 703: The lease contract means that the lessor delivers the leased object to the lessee for use and income. A contract under which a person pays rent.
Article 704: The content of a lease contract generally includes the name, quantity, purpose, lease term, rent and its payment term and method, maintenance of the leased property, etc.
Article 706: If the parties fail to complete the registration and filing procedures for the lease contract in accordance with the provisions of laws and administrative regulations, the validity of the contract will not be affected.