This bulletin provides non-statutory guidance on the provision of teaching and non-teaching accommodation for nursery, primary, and secondary pupils, as well as school grounds. It is directed at the early stages of school projects when strategic decisions must be made about the buildings and site. It follows the steps that designers and school planners can take to identify the appropriate areas for all mainstream schools. Section 1 identifies the approximate overall areas for the school buildings with the idea of helping to reduce the economic drain on school budgets. Section 2 helps to establish the number and types of teaching spaces needed to support particular curriculum or staffing models. Sections 3 and 4 provide more detailed information on the individual spaces required. Section 5 deals with the site area and layout, and provides help in choosing a site, in locating a new building or extension, and in planning a layout of the main eternal features. Appendices provide examples of schedules of accommodation from primary through secondary schools, together with a discussion of the options for each school; and a summary for the area formulae for various types of schools. A glossary is included. (Contains 57 references.) (GR)