AbstractThird World cities are characterized by weak administrative and managerial capacity for environmental planning. Benin City, Nigeria, is no exception. Benin's environmental problems result largely from its unplanned land use and weak development control. These problems include lack of open space, substandard housing and an increasing volume of refuse. The administrative arrangements to handle environmental problems include the Town Planning Division, which enforces building and housing codes and land use regulations; and the Task Force on Environmental Sanitation, responsible for solid waste management. However, these arrangements have not produced satisfactory results. Failure has been due partly to thead hocorganization of environmental administration; the overlapping perception of environmental problems; the alienation of the public; dispersal of authority; and the scale of jurisdictional units. Effective environmental planning administration must adopt a holistic approach, which recognizes the need for a comprehensive environmental planning and a concentration of environmental authority. This is based on the premise that environmental issues are the responsibility of one agency but an obligation for all. Structurally, the concentration of environmental authority hinges on the principle of cooperative leadership by the Federal Government. This calls urgently for the establishment of a Federal Environmental Protection Agency at the centre, and Environmental Management Boards at state levels. The Boards would provide an administrative umbrella under which the management of various aspects of the environment are coordinated. In order to maximize the cooperation of the public, the traditional power structure of the Oba (paramount chiefs and community leaders) must be involved in the conception and implementation of environmental planning. Citizen participation would in turn be maximized if the neighbourhood is adopted as the jurisdictional unit, upon which environmental administration and management are systematically built.