A spatial tessellation is one of the most important urban structures. Multiple spatial tessellations often exist in the same area. It is often useful to analyze a relation among spatial tessellations in urban analysis and planning. This paper proposes a method of classifying spatial tessellations with representative points defined in the same region. Representative spatial tessellation is calculated from spatial tessellations classified in the same category to indicate the properties of the tessellations. The method is applied to classify school district planning in Kita ward, Tokyo, in order to test the validity of the method.