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대법원 2025다212052

Other (Monetary Claim) - Real Estate Brokerage Commission Dispute기타(금전)

Decided2026. 02. 12. Court대법원Case reversed and remanded (broker's position partially vindicated; lower court's reduction of commission overturned for further review)
AI-generated English translation (summary, key points, decision summary and full text) for reference only — not an official translation and without legal effect. The Korean original below is authoritative.
AI Easy read — AI summary of this decision
AI-generated summary for reference only — the Korean original below is authoritative.

This case concerns a dispute over whether a real estate broker's agreed commission (중개보수) was excessive and thus violated the principle of good faith (신의성실 원칙). The lower court reduced the commission by 50% based only on general, abstract circumstances without identifying specific factual grounds. The Supreme Court (대법원) reversed the lower court's decision and remanded the case, finding that the reduction lacked a clearly articulated, reasonable basis.

Key takeaways
  • CaseIncident: A client demanded a reduction in the real estate brokerage commission (중개보수) owed to a broker, claiming the amount was excessive.
  • OutcomeResult: The Supreme Court ruled it was improper for the lower court to cut the commission by 50% based only on vague, general circumstances without concrete supporting evidence.
  • LessonLesson: To successfully argue that a brokerage commission should be reduced, a party must present clear, specific evidence regarding the difficulty of the work, the effort expended, and the actual benefit obtained.
Issues
  • The standard for determining whether an agreed real estate brokerage commission is excessive
  • The court's obligation to provide specific and reasonable grounds when reducing a brokerage commission
Key reasoning

When a court seeks to reduce an agreed real estate brokerage commission on the ground that it violates the principle of good faith, it must comprehensively examine specific factors such as the circumstances leading to the brokerage engagement, the complexity of the work involved, the effort actually invested by the broker, and the concrete benefit obtained by the client. Only after weighing these specific facts can a court establish a clear and reasonable basis for finding the commission excessive. In this case, the lower court reduced the commission by half relying merely on vague, abstract circumstances, without engaging in this required factual analysis. The Supreme Court held that this failure to identify concrete grounds was a legal error, emphasizing that commission reductions cannot be based on general impressions alone.

Summary of Decision (English, AI translation)

Where there is an agreement between a real estate broker and a client regarding compensation for the broker’s handling of delegated affairs, the real estate broker may, in principle, claim the entirety of the agreed compensation. However, where there exist special circumstances—considering the circumstances of the delegation, the progress and difficulty of the brokerage work, the degree of effort expended, the specific benefit the client obtains from the handling of the affairs, and other circumstances revealed in the pleadings—such that the agreed amount of compensation may be deemed unreasonably excessive and thus contrary to the principle of good faith or the principle of equity, the broker may, exceptionally, claim only the amount of compensation recognized as reasonable within an appropriate range. However, since such a limitation on the claim for compensation is, after all, a recognition of an exception to the principle of freedom of contract, the court must clearly set forth the reasonable grounds therefor.

Full text (English, AI translation) 4,449 chars

[Plaintiff, Appellant] ○○ Real Estate Brokerage Corporation (Law Firm Chamjin, Attorneys Lee Hong-geol and one other, Counsel for the Plaintiff)
[Defendant, Appellee] △△△ Co., Ltd. (Attorney Park Seok-sun, Counsel for the Defendant)
[Judgment Below] Gwangju District Court Decision 2024Na80131, decided April 11, 2025

[Order]

The part of the judgment below against the Plaintiff is reversed, and this part of the case is remanded to the Gwangju District Court.

[Reasoning]

The grounds of appeal are examined.

1. Relevant Legal Principles
Where there is an agreement between a real estate broker (부동산중개업자) and a client entrusting the brokerage as to the remuneration for the entrusted business, the real estate broker may, in principle, claim the full amount of the agreed remuneration. However, in exceptional cases where, considering the circumstances leading to the entrustment, the progress and difficulty of handling the brokerage business, the degree of effort expended, the specific benefit obtained by the client as a result of the handling of the business, and other circumstances revealed in the pleadings, there exist special circumstances such that the agreed remuneration is unreasonably excessive and thus contrary to the principle of good faith or the principle of equity, the broker may claim only such amount of remuneration as is recognized to be appropriate within a limited scope (see, e.g., Supreme Court Decision 2011Da107900, decided April 12, 2012). However, since such limitation on the claim for remuneration constitutes, after all, an exception to the principle of freedom of contract, the court must clearly state the reasonable grounds therefor (see, e.g., Supreme Court en banc Decision 2016Da35833, decided May 17, 2018).

2. Judgment of the Court Below
The court below, after finding only the fact that the real estate at issue, which was the subject matter of the sale, became the object of brokerage because the Defendant, intending to newly construct an apartment being promoted by the relevant local housing association, entrusted a non-party on the Plaintiff's side with the service of purchasing the real estate in that area, held—taking into account the circumstances under which the Plaintiff came to be entrusted by the Defendant with the brokerage of the sale contracts, the progress and difficulty of handling the entrusted business, the degree of effort expended by the Plaintiff, the specific benefit obtained by the Defendant, and the statutory upper-limit commission rate at the time the brokerage remuneration agreement was made—that each of the amounts of remuneration agreed upon between the Plaintiff and the Defendant was unreasonably excessive and thus contrary to the principle of good faith or the principle of equity, and accordingly reduced each amount by 50% ex officio.

3. Judgment of the Supreme Court
Examining the reasoning of the judgment below in light of the legal principles set forth above and the record: the court below, apart from the fact concerning the circumstances under which the Plaintiff came to broker the sale contracts regarding the real estate at issue, conducted no examination or determination whatsoever as to the concrete underlying facts from which the various factors serving as the basis for limiting a claim for brokerage remuneration could be inferred, and instead held, relying only on abstract circumstances, that the agreed remuneration was unreasonably excessive and contrary to the principle of good faith or the principle of equity. Such reasoning alone does not make clear an objective and reasonable basis for limiting, as an exception to the principle of freedom of contract, the Plaintiff real estate broker's claim for brokerage remuneration. The judgment below thus contains an error affecting the outcome of the judgment, in that it misapprehended the legal principles concerning limitation of a real estate broker's claim for brokerage remuneration and failed to conduct the necessary examination.

4. Conclusion
Without examining the remaining grounds of appeal, the part of the judgment below against the Plaintiff is reversed, and this part of the case is remanded to the court below for further examination and determination. This judgment is rendered as set forth in the Order by the unanimous opinion of the participating Justices.

Justices Lee Heung-gu (Presiding Justice), Oh Seok-jun, Noh Kyung-pil (Justice in charge), Lee Suk-yeon

【판결요지】

부동산중개업자의 위임사무처리 보수에 관하여 부동산중개업자와 중개의뢰인 사이에 약정이 있는 경우 부동산중개업자는 원칙적으로 약정보수액 전부를 청구할 수 있다. 다만 위임의 경위, 중개업무처리의 경과와 난이도, 투입한 노력의 정도, 중개의뢰인이 업무처리로 인하여 얻게 되는 구체적 이익, 그 밖에 변론에 나타난 여러 사정을 고려하여, 약정보수액이 부당하게 과다하여 신의성실 원칙이나 형평 원칙에 반한다고 볼 만한 특별한 사정이 있는 때에는 예외적으로 적당하다고 인정되는 범위 내의 보수액만을 청구할 수 있다. 그런데 이러한 보수 청구의 제한은 어디까지나 계약자유 원칙에 대한 예외를 인정하는 것이므로, 법원은 그에 관한 합리적인 근거를 명확히 밝혀야 한다.

【참조조문】

민법 제2조, 제686조

【참조판례】

대법원 2012. 4. 12. 선고 2011다107900 판결, 대법원 2018. 5. 17. 선고 2016다35833 전원합의체 판결(공2018하, 1139)

【주문】·【이유】 전문 1,566자 · 펼쳐 보기

【원고, 상고인】 주식회사 ○○부동산중개법인 (소송대리인 법무법인 참진 담당변호사 이홍걸 외 1인)

【피고, 피상고인】 주식회사 △△△ (소송대리인 변호사 박석순)

【원심판결】 광주지법 2025. 4. 11. 선고 2024나80131 판결

【주 문】

원심판결 중 원고 패소 부분을 파기하고, 이 부분 사건을 광주지방법원에 환송한다.

【이 유】 상고이유를 판단한다.

1. 관련 법리

부동산중개업자의 위임사무처리 보수에 관하여 부동산중개업자와 중개의뢰인 사이에 약정이 있는 경우 부동산중개업자는 원칙적으로 약정보수액 전부를 청구할 수 있다. 다만 위임의 경위, 중개업무처리의 경과와 난이도, 투입한 노력의 정도, 중개의뢰인이 업무처리로 인하여 얻게 되는 구체적 이익, 그 밖에 변론에 나타난 여러 사정을 고려하여, 약정보수액이 부당하게 과다하여 신의성실 원칙이나 형평 원칙에 반한다고 볼 만한 특별한 사정이 있는 때에는 예외적으로 적당하다고 인정되는 범위 내의 보수액만을 청구할 수 있다(대법원 2012. 4. 12. 선고 2011다107900 판결 등 참조). 그런데 이러한 보수 청구의 제한은 어디까지나 계약자유 원칙에 대한 예외를 인정하는 것이므로, 법원은 그에 관한 합리적인 근거를 명확히 밝혀야 한다(대법원 2018. 5. 17. 선고 2016다35833 전원합의체 판결 등 참조).

2. 원심 판단

원심은, 매매목적물인 판시 부동산들은 피고가 해당 지역주택조합이 추진하는 아파트를 신축하고자 원고 측 소외인에게 그 일대 부동산들에 대한 매입용역을 의뢰하여 중개대상이 되었다는 사실만 인정한 다음, 원고가 피고로부터 매매계약 중개를 수임하게 된 경위, 위임업무처리의 경과와 난이도, 원고가 투입한 노력의 정도, 피고가 얻게 되는 구체적 이익, 중개보수 약정 당시의 법정 수수료 상한요율 등을 고려할 때 원고와 피고 사이에 정한 각각의 약정보수액이 부당하게 과다하여 신의성실 원칙이나 형평 원칙에 반한다고 보아 직권으로 이를 50%씩 감액하였다.

3. 대법원 판단

원심판결 이유를 앞서 본 법리와 기록에 비추어 살펴본다. 원심은 원고가 판시 부동산들에 관한 매매계약을 중개하게 된 경위 사실 외에 중개보수 청구 제한의 근거가 되는 여러 요소들을 추단할 수 있는 구체적 근거사실에 관하여 아무런 심리·판단을 하지 아니한 채 추상적인 사정들만을 들어 약정보수액이 부당하게 과다하여 신의성실 원칙이나 형평 원칙에 반한다고 판시하였는데, 이러한 판시 내용만으로는 계약자유 원칙에 대한 예외로서 부동산중개업자인 원고의 중개보수 청구를 제한할 만한 객관적이고 합리적인 근거를 명확히 알 수 없다. 이러한 원심판단에는 부동산중개업자의 중개보수 청구 제한에 관한 법리를 오해하여 필요한 심리를 다하지 않음으로써 판결에 영향을 미친 잘못이 있다.

4. 결론

나머지 상고이유에 관한 판단을 생략한 채 원심판결 중 원고 패소 부분을 파기하고, 이 부분 사건을 다시 심리·판단하도록 원심법원에 환송하기로 하여, 관여 대법관의 일치된 의견으로 주문과 같이 판결한다.

대법관 이흥구(재판장) 오석준 노경필(주심) 이숙연

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