A scientific study for determining the school site and space requirements for varying population densities is needed for effective planning. The properly equipped school site should provide enough space to aid in the mental and physical development of every child. Site determinants include--(1) the school population, (2) allowable enrollment per school, (3) the number of schools required in the neighborhood, (4) planned population densities for new neighborhood areas, and (5) distance from home to school. A table of desirable distances between home and school in five different countries and a table of school site standards in four different countries are given. Building requirements are discussed in the context of open space, and large site area versus the multi-storied structure. Space needs are likewise discussed as they relate to extra-curricular activities. The site requirements which are arrived at should be examined for their use efficiency. A bibliography of international sources is included. (NI)