The importance of using existing local elementary school facilities to benefit preschool children and their neighborhoods forms the basis for suggestions offered in this address. Comprehensive child and community development centers can be created in the schools that would benefit the community by increasing general concern for a higher quality living environment, and benefit the children by preparing them for formal schooling. Elementary schools can become sponsors of home-based preschool education programs through: (1) conducting parenting and outreach classes; (2) coordinating health and welfare programs by providing diagnostic public health services for preschoolers that would be concerned with child welfare, nutrition, and the early identification of handicapping situations; and (3) using existing school library facilities for lending books and toys and conducting clinics and learning seminars. Reasons for using a home-based approach (as opposed to a center-based approach) in promoting preschoolers' development are outlined. Potential gains for the children and the community are stated in both human and economic terms. (ED)