Various deliberation procedures such as basic plan establishment, safety diagnosis, maintenance plan establishment, project implementation plan establishment, educational environmental impact assessment, disaster impact review, and eco-friendly certification have been strengthened in recent years. In particular, the Education Environment Protection Act aims to protect the educational environment in order to prevent damage to the school’s educational environment when there is a school within a radius of 200 m. The right to sunlight is a legally protected right to enjoy sunlight, and various effects occur depending on the size, location, direction, separation distance, and shape of the planned building. This study aims to analyze the efficiency of sunlight by location.