A. On July 10, 201, the Defendant awarded a contract from C for the construction of a multi-family house with the fourth floor located in Seoan-gu, Seoan-gu, Seocheon-gu, Seocheon-gu, and subcontracted the said new construction works to the Plaintiff on July 10, 201.

B. In addition to the installation of a window, the Plaintiff completed double installation works for the 22th day of the rooftop Hand, 2 rooftop aluminium, 3 rooftop straw, each floor studs, parking lot boards, parking lot boards, and Haba-si.

C. On December 16, 201, the Defendant paid KRW 30,000,00 to the Plaintiff respectively, and KRW 30,000,00 on December 29, 201.

[Ground of recognition] Facts without dispute, Gap evidence Nos. 1 and 4, the purport of the whole pleadings

2. The assertion and judgment

A. The parties concerned claim 1) The construction cost of the Plaintiff Corporation is KRW 52,985,00, and the other additional construction cost is KRW 27,50,000, KRW 1,430,000, KRW 222 installed on the rooftop hand, ③ 500,000, KRW 300, KRW 400, KRW 7 installed on the rooftop hand, ⑤ 5000, KRW 500, KRW 7 installed on each floor, and KRW 500,000, KRW 500, KRW 700, KRW 5000, KRW 7000, KRW 500, and KRW 700, KRW 19,470, KRW 33,750,000, KRW 305, and KRW 405, and KRW 405,000, the remainder of the construction cost is not paid to the Plaintiff.

Furthermore, among those asserted by the Plaintiff as additional construction, the installation part of the elevator was actually paid by the Defendant, and the remainder of the additional construction work is included in the instant construction work.