Homebuyer Wins Unjust Enrichment Claim for 1200 Yuan Water Meter Fee in Eastern China

Homebuyer Wins Unjust Enrichment Claim for 1200 Yuan Water Meter Fee in Eastern China

Case Overview
A homeowner in Eastern China successfully recovered 1200 yuan paid to a real estate developer for a water meter installation fee, plus interest. The court found the developer had no legal basis to charge separately for a standard infrastructure item. This case clarifies when a payment constitutes unjust enrichment and how the statute of limitations applies in such disputes.

Case Background and Facts
In 2003, Mr. Chen purchased an affordable housing unit in Eastern China from Zhejiang Economic Housing Development and Construction Company. At the time of property handover, the developer charged him 1200 yuan under the label “water meter collection fee” and issued a formal invoice. Mr. Chen paid without immediate objection. Seven years later, in 2010, he learned from other residents that the developer had been ordered by the provincial pricing authority to refund similar charges to other homeowners. The pricing authority had determined that the developer improperly collected the water meter fee outside the approved sales price for affordable housing, effectively raising the price illegally.

Court Proceedings and Evidence
Mr. Chen filed a lawsuit on December 21, 2010, seeking return of the 1200 yuan plus interest of 501.12 yuan from April 23, 2003, to July 22, 2010, calculated at an annual rate of 5.76 percent. The developer raised two main defenses. First, the claim was barred by the two-year statute of limitations because Mr. Chen paid the fee in 2003. Second, the fee was not unjust enrichment because the cost of installing a smart remote-reading water meter exceeded 1300 yuan per household, and this expense arose after the pricing authority had already approved the base sales price. The developer submitted evidence including construction drawings, pricing approval documents, engineering change orders, completion drawings, and cost verification reports. Mr. Chen presented his purchase contract, property ownership certificate, the payment invoice, and a prior court judgment from a similar case.

Court Findings and Judgment
The court identified two main issues. On the question of unjust enrichment, the court held that water supply infrastructure is a basic necessity for any habitable property. A developer has an implied contractual duty to provide functioning water meters as part of the sale. Since the parties did not specially agree that the buyer would bear this cost separately, the purchase price already covered the water meter expense. The provincial pricing authority had already confirmed that charging this fee outside the approved price was illegal. Therefore, the developer had no legal basis to collect the 1200 yuan, making it unjust enrichment.

On the statute of limitations issue, the court applied the rule that the limitation period for an unjust enrichment claim begins when the plaintiff knows or should know both the fact of unjust enrichment and the identity of the defendant. The developer failed to prove that Mr. Chen knew or should have known the fee was improper at the time of payment in 2003. The court accepted Mr. Chens statement that he only learned of the improper nature in 2010 when notices about prior cases were posted in the community. Consequently, the lawsuit filed in December 2010 was timely.

The court ordered the developer to return 1200 yuan plus interest at 5.76 percent per annum from April 24, 2003, until the date of actual payment.

Key Legal Principles
The court applied the principle that a party who obtains a benefit without a legal basis must return it to the party who suffered a loss. In real estate transactions, developers cannot charge separately for basic infrastructure items unless the contract expressly provides otherwise. The statute of limitations for unjust enrichment claims runs from the date the plaintiff actually discovers the improper nature of the payment, not from the date of payment itself.

Practical Insights
Homebuyers should review all charges imposed at property handover and question fees that appear unrelated to the contract price. Even if years have passed, a claim for unjust enrichment may still be viable if the buyer only recently discovered the improper charge. Developers must ensure that all fees collected are either authorized by the sales contract or by applicable regulations. Charging separately for standard infrastructure components like water meters may constitute an illegal price increase and expose the developer to refund obligations with interest.

Legal References
General Principles of Civil Law of the Peoples Republic of China, Article 92. Supreme Peoples Court Opinions on Implementing the General Principles of Civil Law (Trial Implementation), Article 131.

Disclaimer
This article is for informational purposes only and does not constitute legal advice. Consult a qualified attorney for specific legal matters.