In this study, it did comparative analysis on the arrangement, construction and size of rooms applied in the early design stage at the time of prize-winning with the changed ground plans in the final design of those prize-winning works in design contests and BTL hold since 2007 for middle and high schools in Gyeonggi, Daejeon, Chungcheong regions. Through the analysis, this study intends to present those matters to be changed in the facilities standards of each local education office so that it can be referred to the assessment of spatial construction and proper size being planned in the future for middle and high schools and reflected flexibly in consideration of various educational conditions and characteristics of schools by regions. Furthermore, it has the objective to play a part for the establishment of much better environment of educational facilities by provision of reference materials to those matters being changed into proper ones not into the minimum ones of the school facilities standards as the national level. For case analysis, it analyzed various rooms classified by necessary spaces. Since names of rooms and spatial constructions to constitute facilities are different from each local education office and also the analysis by each room has some limitation in the changes and improvement of rooms for a wide range, it proceeded with detailed classifications of school building facilities by each necessary space.