[Direct answer]The validity of a sublease cannot be generally determined as either valid or invalid. It is necessary to break down the three-layered relationship between the original lease contract, the first sublease contract, and the subsequent sublease contract, and check each layer to determine whether the lessor has given consent and whether the sublease period exceeds the remaining term of the previous sublease. According to the provisions of the Civil Code of the People's Republic of China (effective January 1, 2021) on the need for the lessor's consent for subleases, a sublease without the lessor's consent leaves the lessor with the option to terminate the original contract and subsequently reclaim the property, but this does not necessarily render the sublease contract invalid between the sublessee and the sublessor. If the lessor knows or should have known about the sublease but does not raise objections within six months, the law deems this as consent. The portion exceeding the original lease term does not bind the lessor. The determination should proceed from the top down along the contract chain, examining consent, terms, and possession, rather than making a blanket judgment of validity or invalidity.

I. Problem background and typical scenarios

Multiple subleases stretch a single lease relationship into a chain: the property owner leases the property to the lessee, who then subleases it to a second lessee as a sublandlord. The second lessee, in turn, hands over the property to a third lessee for actual use. With each additional link in the chain, there are more misalignments in terms of consent, lease terms, rent payments, and security deposits. A typical scenario is: the original contract stipulates no subleasing or requiring written consent for subleasing, but the lessee subleases the property in its entirety. The second lessee then subleases it again due to a job change. The original landlord only discovers that a third party is living in the property when they conduct an on-site inspection, fail to receive rent payments, or receive complaints from neighbors about illegal subletting. At this point, the third lessee often has already paid rent and security deposits to the second lessee and made simple renovations, only to find themselves in a lose-lose situation: the second lessee disappears with the money, while the original landlord demands immediate eviction. Variations include: the original contract making no mention of subleasing, the landlord verbally allowing subleasing, the landlord collecting rent at the subleased rate for months without comment, consecutive lease extensions exceeding the original term, a change in use from residential to commercial or short-term accommodation, and the first lessee disappearing with the money. The trigger for disputes typically occurs when the original landlord asserts their rights, but the necessary evidence is scattered across three contracts, multiple payment records, and a series of occupancy handovers. Whoever can first clarify this contractual chain will be able to determine whether they have a legitimate basis for possession.

II. Key points of contention

The disputes typically revolve around seven issues. First, the attitude of the original contract towards subleasing: whether the prohibition of subleasing is valid, whether the consent requirement is limited to written form, and how to handle cases where no agreement exists. Second, the determination of the lessor's consent: express consent, subsequent ratification, implied consent through rent collection or long-term inaction, and the statutory rule that failure to raise objections within six months from the date of knowledge or should-have-known constitutes consent. Third, the duration of each sublease: if the sublease period exceeds the lessee's remaining lease term, the excess portion is not binding on the lessor. When there are multiple subleases, the start and end dates of each sublease must be compared sequentially. Fourth, the validity of the sublease contract: if the lessee does not have consent or even the right to sublease, whether the sublease contract remains valid between the parties, and how to balance the principle of contractual privity with the unauthorized disposition often determine whether it is possible to recover the paid amounts from the previous sublessee. Fifth, the legality of possession: how the actual occupant can resist the landlord's eviction request. With consent, the sublessee can claim continued possession; without consent and upon termination of the original contract, the lessee must return the property. Sixth, settlement and losses: how to return the collected rent and deposits, handle renovations and additions, determine who should bear property damage, and assess whether there is unjust enrichment or joint and several liability. Seventh, litigation subjects: whether the lessor, lessee, sublessee, or subsequent sublessee act as plaintiffs, defendants, or third parties. Failure to list all parties may prevent the court from issuing eviction or restitution orders. The parties' claims typically focus on these issues: the landlord claims that consent was never granted and the sublease is invalid, demanding immediate eviction; the actual occupant claims that they paid consideration, that the landlord had long-standing knowledge, and that renovation investments should be protected; and the intermediate sublessees claim that they too are victims of the dispute. The judge's determination typically follows this order: first confirming the original lease relationship and remaining lease term, then reviewing consent and term limits layer by layer, then assessing the validity of each sublease contract and the basis for possession, and finally addressing eviction, restitution, and loss sharing.

III. Professional analysis by Hengluo Lawyers

When handling multi-level subleases, the most reliable approach is to conduct a check from the top down, layer by layer. **First layer**: Verify the original lease contract: confirm the lessor's identity and property rights, the start and end dates of the original lease, any prohibitions or restrictions on subleasing, evidence of the lessor's consent to subleasing, and whether six months have passed since the lessor knew or should have known about the subleasing without objection. **Second layer**: Check the first sublease: - Does the lessee have the right to sublease? - Was the sublease approved? - Does the sublease period exceed the original lease term? - Have the use and structure of the property been unauthorizedly altered? - What is the difference between the original rent and the sublease rent? **Third layer**: Check the subsequent subleases: - On what basis did the sublessee sublet further? - Does the original lease permit subleasing? - Did the sublessee obtain the lessor's consent again? - How much does the final lease term exceed the original lease? After completing the three layers of checks, the conclusions can be categorized as follows: - If all layers are approved and within the time limit, the sublease chain is binding on the lessor, and the actual occupant can continue to use the property according to the contract. - In the case of unauthorized subleasing, the lessor may terminate the original contract and request the return of the property under the *Civil Code of the People's Republic of China* (effective January 1, 2021), but the sublease contract generally remains valid between the sublessee and the original lessee. Payments should be recovered from the previous sublessee according to the contractual principle of privity of contract. - Any portion exceeding the original lease term is not binding on the lessor. - If no objection is raised within six months, it is deemed consent, and the lessor's subsequent revocation of consent is generally difficult to enforce. Evidence should be organized into four groups: - Contract group (original lease, sublease agreements, supplementary clauses, leasing and commitment materials) - Funds group (detailed records of rent and deposit payments, notes, receipts, deposit transfer records) - Consent group (written consent, WeChat messages or letters, rental notes, on-site awareness records, objection notices and service) - Occupation group (handover forms, registration of occupancy, property and utility account names, decoration receipts, on-site photos) The procedural steps are as follows: 1. Send a letter to the previous lessee and the original landlord to confirm consent and time limits and keep records. 2. Determine the starting point of the six-month objection period. 3. If negotiations fail, initiate litigation and list all parties as defendants or third parties to request confirmation of validity, eviction, or refund of rent. 4. Submit the four groups of evidence within the evidentiary period. 5. Exchange and compare contract dates and payment records before the trial. 6. Cross-examine the authenticity of consent, whether the time limit was exceeded, and the basis for occupation during the trial. 7. Appeal within the statutory period if dissatisfied with the judgment. 8. Apply for enforcement after the eviction judgment takes effect. For more information, please refer to:The Real Estate Sales and Construction Project Practices columnThe explanation of ownership registration and the contract chain in China. The court's ruling essentially hinges on several principles: contractual relativity, consent and ratification, time limits, restitution of possession, and allocation of losses based on fault. By comparing these principles layer by layer, the legal issues will become clearer.

IV. Practical suggestions and legal basis

The main legal basis for this comes from the Contracts Chapter of the Civil Code of the People's Republic of China (effective January 1, 2021), which stipulates that subletting requires the lessor's consent, that failure to raise objections within six months constitutes implied consent, and that the subletting period cannot exceed the remaining lease term and breach of contract liability. The ownership and principal verification can be conducted according to the Interim Regulations on Real Estate Registration (effective March 1, 2015) to identify the registered rights holder. Procedures involving third parties must comply with the Civil Procedure Law of the People's Republic of China (amended on December 24, 2021 and effective January 1, 2024), and fees are governed by the Methods for Payment of Litigation Costs (effective April 1, 2007). There are six practical suggestions: First, arrange three or more contracts in a table by signing date, marking the lease start and end dates, rent, deposit, subletting terms, and contracting parties for each contract. This allows clear identification of overdue terms. Second, verify the lessor's identity with property registration and management authorities to ensure that the addressee of rental payments and notifications is the actual rights holder, avoiding futile negotiations with unauthorized parties. Third, secure evidence of consent: written agreements, WeChat confirmations, and payment records with sublessee information noted should be archived chronologically. If the lessor objects, they must raise objections in writing within six months of becoming aware of the subletting. Fourth, verify fund flows in detail: track who received rent and deposits, whether payments were duplicated, or whether funds were transferred. Compile a comparison table as evidence for recovery requests. Fifth, when evicting actual occupants, first verify whether their subletting was approved and the remaining lease term. Decide whether to claim continued occupancy or seek recovery of payments and renovation losses from the previous sublessee. Sixth, include all previous and intermediate sublessees as parties or third parties in litigation to avoid omissions that could prevent a single resolution of eviction or restitution. For multi-level subletting, relying solely on declarations of validity or invalidity is unreliable. A layer-by-layer comparison is the safest approach.

5. Hengluo Law Firm's Reminder

There are three points worth remembering. Firstly, six months is a hard deadline: if the lessor knows or should have known about the long-term silence after the sublease, the law may deem it as consent. It will often be difficult to obtain support if the lessor later terminates the contract on the grounds of unauthorized subleasing, and any objections should be raised in writing as soon as possible and the delivery receipt should be preserved. Secondly, the overdue portion is not protected: the sublease period that exceeds the original lease term will not be effective for the lessor. When signing the contract, the final lessee must check how much of the lease term remains for the previous lessee, rather than just looking at the expiration date of their own contract. Thirdly, the money and the house should be calculated separately: the original landlord has the right to reclaim the house, but this does not mean that the rent and deposit collected by the previous lessee do not need to be refunded. The two belong to different legal relationships. The payments already made should be recovered from the recipient according to the principle of contractual relativity. The losses of decoration and items should be handled according to the evidence and fault. Regardless of which party you represent, it is essential to keep all four documents, including the contract, transaction records, consent records, and handover certificates, in order to avoid being caught in the middle and losing out in the event of a dispute.

VI. Frequently Asked Questions

Q1: Is it invalid if the second landlord sublets the property without the original landlord's approval?

It's not necessarily invalid in all cases. It should be analyzed in layers. According to the provisions of the Contracts Chapter of the Civil Code of the People's Republic of China (effective from January 1, 2021) regarding the need for the lessor's consent for subleasing, the lessor has the right to terminate the original lease contract and request the return of the property if the subleasing is done without consent, and the risk mainly lies with the party who occupies the property. However, the subleasing contract is usually not automatically invalidated between the sublessee and the sublessor. The paid rent and deposit can still be recovered from the previous party in accordance with the principle of contractual privity. If the lessor knows or should have known about the subleasing but does not raise objections within six months, it is legally deemed as consent, and the subleasing will be binding on the lessor. For any part of the sublease period that exceeds the original lease term, it will not be effective for the lessor. In conclusion, it is necessary to analyze each contract and each period separately, and cannot generalize the entire chain with a single statement of validity or invalidity.

Q2: Does the original landlord accepting the rental payments from the sublandlord count as a subsequent acknowledgement?

A single bank statement is usually not sufficient. It depends on whether it can be proven that the landlord was aware of the subletting at the time of receiving the payment. According to the rules on consent, ratification, and the presumption of consent if no objection is raised within six months in the Civil Code of the People's Republic of China (effective January 1, 2021), if the landlord collects rent according to the standard after the subletting for several consecutive months, the notes contain information about the sublessee, or the landlord knows that the house has been used by others but does not express any objection for a long time, it can be inferred that the landlord has given implied consent or ratification. If the landlord only collects the rent on behalf of the sublessor and is unaware of the subletting, it is difficult to determine consent based on this. According to the review requirements for electronic data in the Civil Procedure Law of the People's Republic of China (amended on December 24, 2021 and effective January 1, 2024), it is recommended to use a stamped official statement of transactions, together with chat records, rental collection notes, and property registration records.

Q3: How to pay the acceptance fee for a lawsuit to confirm the validity of a sublease contract?

For cases involving a simple request to confirm the validity of a contract without involving the amount of payment, the fees are generally charged on a per-case basis, which is relatively low. According to the "Measures for the Payment of Litigation Fees" (implemented on April 1, 2007), property cases are charged acceptance fees in stages based on the amount of the litigation subject matter. Lawsuits to confirm the validity of sublease contracts are generally handled as non-property cases or on a per-case basis. If the plaintiff simultaneously requests the return of rent, deposit, or compensation for renovation losses in the same case, the payment part will be included in the cumulative fees according to the claimed amount, and the overall fees will increase accordingly. The acceptance fees are prepaid by the plaintiff when filing the case. After the trial, the losing party is generally responsible for bearing the fees. If the plaintiff partially wins and partially loses, the fees will be shared according to the proportion of responsibility. For cases settled through mediation, the fees will be determined by the parties or the court. Separating the claims of confirmation from those of payment before filing the case helps to accurately calculate the costs.

Q4: If the lessor does not raise any objections within a few months after the subletting, does this mean that they have agreed to it?

Six months. According to the provisions on subleasing in the Civil Code of the People's Republic of China (effective January 1, 2021), if the lessor knows or should have known that the lessee has subleased, but does not raise objections within six months, it shall be deemed that the lessor agrees to the subleasing. This period shall be calculated from the date on which the lessor knows or should have known the fact of subleasing. The objection must be raised in a verifiable manner, such as written letters, instant messaging records, and notifications with delivery receipts. It is often difficult to provide evidence for oral claims. After the expiration of the period, if the lessor requests to terminate the original contract or claims that the subleasing is invalid on the grounds of unauthorized subleasing, it is usually difficult to obtain support.

Q5: When the sub-lessee is required to vacate the premises, should they first check the original lease agreement or negotiate with the landlord first?

First, check the original contract and then negotiate and consult. The order should not be reversed. On the same day, gather the original lease contract, the first sublease contract, and the second sublease contract, and check each one carefully for the start and end dates of the lease term, the provisions prohibiting or restricting subleasing, the evidence of consent, the remaining lease term and the paid rent and deposit, as well as the fixed handover of the property, property registration, renovation certificates, and financial records. According to the provisions of the Civil Code of the People's Republic of China (effective January 1, 2021) on subleasing and possession, you can determine whether you have obtained consent, whether the previous tenant has exceeded the lease term, whether the original landlord has not raised objections within six months, and whether there is a legal basis for possession. After preparing all the materials, negotiate with the property owner and the previous tenant about the compensation for vacating the property, the continuation of the lease term, or the return of the payment. If no agreement can be reached, you can sue and list all the parties involved as defendants or third parties in the lawsuit.

Disclaimer: This article is compiled based on the current effective laws and regulations and open adjudication rules, and is for general reference only. It does not constitute a formal legal opinion on specific cases. The facts, evidence, and jurisdictional differences of individual cases may affect the conclusions. If a dispute arises, please consult a practicing lawyer in time.