1. The plaintiff's claim is dismissed.

2. The costs of lawsuit shall be borne by the Plaintiff.

1. Basic facts

A. The Plaintiff is the council of occupants' representatives consisting of the occupants of Songpa-gu Seoul Metropolitan Government A Apartment, and the Defendant is a company that mainly performs electrical construction works and automatic control works.

B. On August 23, 2012, the Plaintiff and the Defendant concluded a contract for the subcontract for the renovation and repair works of A apartment units (hereinafter “the instant construction contract”) by setting the construction period from August 23, 2012 to November 20, 2012, the contract amount of which is KRW 269,50,000 (including additional taxes), the scope and method of the construction, the delivery of materials/construction of the automatic control work, the establishment of the central monitoring team of the 232 mechanical room, the completion inspection completion of education/working, and the completion of the existing seven mechanical room telecommunications works (hereinafter “instant construction contract”).

C. On December 20, 2015, the Plaintiff entrusted C with a facility inspection service of A Apartment Facility Repair Corporation, and prepared and submitted a facility inspection report according to the above service on December 20, 2015, and there were the following intellectual matters.

Part 14 of facility audit report

3. 설계변경 4) 자동제어 신설공사의 차압유량밸브 및 차압밸브 설계변경 준공 미 정산 ☞ ‘기계실 9개소 철거 및 신설공사’에서 자재 납품, 시공하였으므로 자동제어 신설 공사에 이중으로 반영된 \38,489,000 설계변경 정산사항으로 조사됨. 제16면 [검토결과] ‘기계실 9개소 철거 및 신설공사’에서 중간기계실 차압유량조절밸브/난방 차압조절밸브 시공한 사항으로 조사되며, 자동제어 신설공사(기계실 및 공동구 제어 전기공사)계약서의 내역서 I.자재비 C.제어밸브류에 차압조절밸브(\14,470,000), 차압유량조절밸브(\24,019,000), 합계 \38,489,000 반영된 사항으로 ‘기계실 9개소 철거 및 신설공사’에서 자재 납품, 시공하였으므로 자동제어 신설 공사에 이중으로 반영된 \38,489,000 설계변경 정산사항으로 조사됨. [인정근거 다툼 없는 사실, 갑 제1, 2호증의 각...