[Direct answer]In the Beijing area, there is no minimum number threshold for collective litigation against unfinished buildings in law. A single owner can file a lawsuit individually, and a large number of owners can elect representatives to litigate according to the provisions of the Civil Procedure Law on representative litigation, in order to unify their stance and share the costs. According to Article 563 of the Civil Code of the People's Republic of China (effective January 1, 2021), if the developer delays the delivery of the house and fails to perform within a reasonable period after being urged by the buyer, the buyer may rescind the purchase contract and request a refund; the "Interpretation of the Supreme People's Court on Several Issues Concerning the Application of Law in the Trials of Disputes over the Sale of Commercial Housing Contracts" (amended on December 29, 2020 and effective from January 1, 2021) stipulates that if the seller delays the delivery of the house and fails to perform within a reasonable period of three months after being urged, the party may request the rescission of the contract, unless otherwise agreed in the contract. It is recommended to first send a written notice of default, and then decide whether to rescind the contract or seek compensation. For related issues, please refer to the relevant provisions.Property transactions and construction projectsColumn.

I. Problem Background and Typical Scenarios

Such dilemmas are common in several situations: First, pre-sale projects are stalled for a long time due to developers' funding chain disruptions, and there is still no sign of resumption of work when the delivery date expires; Second, after the project is stalled, owners take actions separately. Some claim to withdraw from the contract and retrieve the payment, while others hope that the government can coordinate the resumption of construction and ensure the delivery of the building. Due to different opinions, the protection of rights is inefficient; Third, owners sue on their own, but the evidence and statements are inconsistent, and their strength is diluted; Fourth, buyers have already paid the down payment and repaid the loan for several years. Withdrawing from the contract involves the double dissolution of the sales contract and the mortgage contract; Fifth, there is a pre-sale fund supervision account for the project, but owners do not know where the funds go. When handling similar cases in Beijing, the authorities usually first verify the reasons for the project stall, the fund supervision account, and the resumption plan, and then determine the overall strategy of withdrawing from the contract, claiming compensation, or waiting for the resumption of construction.

II. Key points of contention

The first focus is whether it constitutes a fundamental breach of contract, that is, whether the duration of the suspension of work, the possibility of resuming work, and the extent of the delay in delivery have rendered the purpose of the contract impossible to achieve. The second focus is the exercise period of the right of rescission. According to Article 564 of the Civil Code, the right of rescission shall be exercised within the statutory or contractual time limit. If it is not exercised within one year from the date when the rescission grounds are known or should be known, it will be extinguished. Claims for returning the deposit after the expiration of the time limit may be rejected. The third focus is the scope of the consequences of rescission, including the calculation of the down payment, the repaid loans, the interest loss, and the liquidated damages. The fourth focus is that the sales contract and the mortgage contract should be rescinded together. The Judicial Interpretation of the Contract for the Sale of Commercial Housing has specific provisions on this. If there is no mortgage loan, the developer shall be responsible for returning the deposit. The fifth focus is the issue of the order of rights. The priority of compensation for the construction project price, the mortgage right, and the rights of the purchaser directly affect whether the refunded deposit can be effectively executed. The sixth focus is the organization mode of representative litigation and the risk of executing the recovered funds. The specific determination shall be based on the current effective laws and regulations and judicial rulings. For matters involving the recovery and execution of funds, reference may be made to the relevant provisions.Creditor's rights and debts, and enforcement casesColumn.

III. Professional analysis by Henglue Lawyers

Based on the practical experience of lawyers from our firm in handling disputes over unfinished buildings, the key to collective rights protection lies in timing and evidence organization. In common scenarios, where construction has been halted for more than a year and the government or developer has explicitly stated there are no plans for resumption in the short term, owners are more likely to obtain court support for rescinding contracts and seeking refunds. However, if the project is still under construction, seeking refunds may not be cost-effective. Instead, owners can claim breach-of-contract penalties for delayed delivery and retain the right to rescind the contract. Generally, courts tend to support rescission in cases of severe delivery delays and failure to deliver after being urged, but the actual enforcement of refunds after rescission depends on the developer's remaining assets, the balance in the pre-sale fund supervision account, and the disposition of in-progress projects. Therefore, applying for property preservation before suing is crucial. Common pitfalls include: suing directly without written urging, which is deemed insufficient for rescission; suing after the one-year deadline for exercising the right to rescind; only seeking refunds without simultaneously applying for preservation, resulting in no assets available for enforcement after winning the case; and owners suing individually with inconsistent evidence. In collective litigation, owners should elect representatives, share evidence, and unify their demands. When necessary, they can entrust lawyers from our firm to coordinate the formulation of refund or compensation plans and simultaneously report the fund supervision issues to the housing and urban-rural development department.

IV. Practical suggestions and legal basis

Action suggestions: 1. Verify the project's pre-sale license, online signing and filing, and the status of the pre-sale fund supervision account. If necessary, apply for government information disclosure. 2. Send a written reminder letter to the developer and keep the delivery receipt to grant a reasonable delivery deadline. 3. Make a decision within the one-year exercise period of the right of rescission to avoid the right being extinguished. 4. If a path for returning the house is determined, apply for property preservation when suing and seize the developer's ongoing construction projects, land use rights, or supervision funds. 5. For litigation involving a large number of plaintiffs, appoint a representative lawyer to reduce individual costs. 6. Mortgage buyers should note to simultaneously rescind the mortgage contract to avoid having to continue repaying the loan after the judgment. Related documents and procedural points can be referred to for reference.Special services and other casesColum. In terms of legal basis, Articles 563, 564, and 577 of the Civil Code of the People's Republic of China regulate the termination of contracts and breach of contract liability; the Interpretation of the Supreme People's Court on Several Issues Concerning the Application of Law in the Trials of Disputes over the Sale of Commercial Housing Contracts (amended on December 29, 2020) clarifies the rules that the buyer can terminate the contract if the seller fails to deliver the house within three months after being urged, and that the sale contract and the mortgage contract can be terminated together; the Urban Real Estate Management Law of the People's Republic of China (amended on August 26, 2019) requires that the proceeds from the pre-sale of commercial housing must be used for the relevant project construction.

5. Henglu Law Firm's Advice

Risk warning: Firstly, there is no minimum number of plaintiffs for a class action lawsuit, but the more plaintiffs there are, the earlier they should take unified action to prevent the developer's assets from being divided up by priority creditors; Secondly, the one-year statute of limitations for the right of rescission cannot be interrupted. Waiting too long will result in the loss of the right to withdraw from the contract; Thirdly, winning a lawsuit for withdrawal from the contract does not mean that the money will be received. Preservation and enforcement are the key to recovering the money. You can refer to it for more information.Beijing Henglue Law FirmTo understand the asset investigation and control path, please refer to the implementation category on the official website; Fourth, do not easily believe in verbal promises of resuming work and give up exercising the right of termination. Decisions should be based on written evidence. It is recommended to fix the evidence of suspension of work and reminders as soon as possible, and let professional lawyers evaluate the differences in benefits between the two paths of vacating the house and resuming construction.

VI. Frequently Asked Questions

Q1: Can I win the lawsuit against the developer for unfinished construction?

Whether support can be obtained mainly depends on whether it constitutes a fundamental breach of contract and whether the right of rescission is exercised within the time limit. If the shutdown period is long, there are no clear plans for resumption of work, the delivery is seriously overdue and the developer still fails to deliver after being urged, the court is more likely to support the rescission of the contract and the return of the house; on the contrary, if the project is still being promoted and continued to be built, the court may tend to wait for the developer to fulfill its obligations. At the same time, we should clearly understand the execution risks. After the judgment of returning the house, the recovery of the payment depends on the developer's solvency. Applying for property preservation at the same time as suing can significantly increase the possibility of actual recovery of the payment. It is recommended that lawyers first evaluate the evidence and the developer's asset situation before making a decision.

Q2: What evidence do I need to prepare for a class action lawsuit?

The following should be prepared: the sales contract for commercial housing and its supplementary agreement; the down payment invoice, bank transaction records, and loan disbursement certificates; written reminder letters and delivery receipts; on-site photos of the project's suspension of construction, government department responses, announcements, or news reports; online signing and registration information; contractual basis for late delivery; and clues for supervision of pre-sale funds. The evidence is used to prove the facts of payment, the facts of reminder, and the developer's fundamental breach of contract. Owners should collect evidence in a unified manner to avoid inconsistent versions that weaken the probative force of the evidence.

Q3: How much does it cost to litigate against a troubled real estate project?

The litigation fees are charged in stages according to the amount of the litigation request. Since the subject matter involving the return of the purchase price in the check-out process is relatively large, the fees are correspondingly higher, and some successful litigants share the fees proportionally. The attorney's fees are determined through consultation based on the complexity of the case, the number of parties involved, and whether preservation measures are taken. The property preservation fees and preservation guarantee fees are calculated separately. In the case of collective litigation, the attorney and investigation costs are shared by multiple owners, and the individual burden is significantly lower than that of individual litigation. Specifically, the litigation costs can be budgeted after consulting with the owners based on the subject matter amount and the number of owners.

Q4: How long does it take to file a lawsuit against a developer for unfinished construction projects?

The first-instance ordinary procedure generally lasts no more than six months, but it may be longer if it involves preservation, inspection, or the defendant's whereabouts being unknown; the second-instance procedure lasts about three months. After the judgment takes effect, the enforcement procedure begins, and the duration depends on the developer's available enforceable assets. Disposing of the under-construction projects may take longer. Overall, the time from filing a lawsuit to actual recovery of funds often takes years, so preservation arrangements and asset investigations before filing a lawsuit are particularly crucial. Taking action as early as possible can shorten the timeframe.

Q5: Can I still file a lawsuit even if there aren't enough people? What should I do in this case?

Yes. The law does not set a minimum number of people, and one owner can file a lawsuit; when there are many people, according to the provisions of the Civil Procedure Law on representative litigation, two to five representatives can be selected to conduct the litigation. If you don't want to sue now, you can first complain to the housing and construction department about the supervision of pre-sale funds, apply for information disclosure, and collectively send written notices to fix evidence, preparing for subsequent litigation. For related project and contract issues, you can refer to the relevant provisions.Property transactions and construction projectsColumn.

This article is written based on the common judicial interpretations in the Beijing area. If the case occurs in other regions, it is recommended to consult local lawyers to verify the regional differences.

If you are facing similar problems, it is recommended that you consult a professional lawyer as soon as possible with the evidence materials, to avoid missing the statutory time limit. →Legal services for real estate transactions·Beijing Henglue Law Firm

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