If the landlord does not renew the lease before the expiration of the lease contract, is the sublease contract valid? What should I pay attention to when subletting a house?

1. The house can be subletted, but legal subletting must meet the following two conditions: 1. Sublease must be approved by the owner of the house. Sublease does not belong to the normal use category, and it must be approved by the owner of the house, otherwise it will be invalid. 2. The sublease rent shall not be higher than the original rent, and it is really necessary to raise it reasonably. The income raised shall be handed over to the owner of the house. Rent is the income of the house and should be obtained by the owner of the house. If a house is subletted without the consent of the owner of the house, or the rent difference is sought, the owner of the house has the right to require the lessee to bear the liability for breach of contract, and may terminate the house lease contract and recover the rented house. 2. It should be noted that the house cannot be subletted under the following circumstances: 1, "the lessee is in arrears with rent", "the lessee builds the house without authorization" and "pre-rents the commercial house". 2. If the house lease contract stipulates that it can be sublet, the lessee may sublet the house according to the agreement. If the house lease contract does not stipulate that it can be sublet, the lessee may sublet the house after obtaining the consent of the lessor; Without the consent of the lessor, the lessor has the right to terminate the lease contract. The lessee of a public residential house may not obtain the consent of the lessor, but shall inform the lessor in writing before signing the sublease contract, otherwise the lessor may also terminate the lease contract. 3. During the sublease of the house, if the original lease contract is changed, which affects the performance of the sublease contract, the sublease contract shall be changed accordingly; If the lease contract is terminated, the sublease contract shall be terminated accordingly. 4. The final lease term stipulated in the sublease contract shall not exceed the final lease term stipulated in the lease contract. 5. During the sublease, unless otherwise agreed by the landlord and the sublease, the original lessee shall continue to perform the lease contract, such as paying the rent on time.