1. The Defendant’s KRW 314,275,00 for the Plaintiff and KRW 6% per annum from December 8, 2010 to May 19, 2016.

1. Basic facts

A. A housing construction project (hereinafter “the instant housing construction project”) consisting of a housing construction project site consisting of the project site consisting of the Defendant, including the installation plan, etc. of infrastructure for a neighboring housing development project in the Seongdong-si, Suwon-do (hereinafter “instant housing construction project”).

3) On December 29, 2003, the Seongbuk-gu Infrastructure Convention (hereinafter “instant Infrastructure Convention”) stating that “The project implementer of the instant housing construction project shall install urban infrastructure in accordance with the Sung-gu Development Plan and contribute it to the acceptance of the plan, and pay the cost of construction of infrastructure calculated by the ratio of the area of the site for application for approval of the project, and the cost of increase and decrease in the cost of the project due to the alteration of the development plan in the course of the project, shall be settled according to the modified contents in the event of increase and decrease in the cost of the project (hereinafter “instant Infrastructure Convention”).

(2) Around December 31, 2005, the Defendant issued a housing construction project approval plan for three housing complexes (1,2,4 complexes) among the housing complexes constructed according to the instant project around December 31, 2005, as well as two housing complexes (3,5 complexes) around November 2007, as well as two complexes (3,5 complexes) among the housing complexes constructed pursuant to the instant project.

3) Article 67 of the former National Land Planning and Utilization Act (amended by Act No. 7848, Jan. 11, 2006) on March 31, 2004.