South Eastern Nigeria’s five states collectively generate an estimated 21.8 million daily urban movements across markets, transport terminals, religious centres, commercial corridors, and institutional hubs. Against this level of human traffic, the region currently has fewer than 2,400 formal public toilet facilities of any consistent standard, producing a severe infrastructure deficit of approximately one facility per 9,000 persons, compared to the WHO benchmark of one per 500 persons.

This gap is not abstract; it manifests daily in widespread open defecation in peri-urban zones, poorly maintained informal “pay toilets” in markets and motor parks, and persistent public health externalities. The economic cost of this sanitation deficit is significant, with estimated annual losses of approximately NGN 96–160 billion, driven by increased healthcare expenditure, productivity losses in labour-intensive sectors, and environmental sanitation remediation costs borne by state and local governments.

The paid public toilet PPP model—where private capital is deployed to develop, operate, and maintain fee-based, professionally managed sanitation facilities under government concession agreements—offers a practical and commercially viable response to this structural gap. This model is not theoretical; it has been successfully implemented in comparable high-density urban environments, including Sulabh International’s sanitation systems in India, Sanergy’s model in Kenya, and multiple PPP sanitation schemes in Lagos. These precedents demonstrate that sanitation infrastructure can function as a self-sustaining utility when properly structured with clear pricing, enforcement, and operational accountability.

In the South East Nigerian context, a 1,000-unit standardised public toilet network strategically located across markets, motor parks, bus terminals, and high-traffic commercial corridors would serve approximately 1.2–2.4 million users per day. At an average usage fee of NGN 200–400 per use, the system would generate an estimated NGN 2.88–5.76 billion in annual gross revenue. With an estimated total capital investment requirement of NGN 12–24 billion, the network yields an attractive investment profile, with projected equity internal rates of return of 22%–36% and a payback period of approximately 4–7 years, while simultaneously delivering strong ESG-aligned social outcomes.

The recommended implementation structure is a Build–Operate–Transfer (BOT) PPP concession model. Under this arrangement, Local Government Authorities and State Governments provide land access, regulatory approvals, enforcement backing, and integration with municipal waste systems. Private investors finance and operate the facilities, managing construction, staffing, maintenance, and technology systems including cashless payment infrastructure and usage monitoring.

Revenue is shared through a concession structure where government entities receive 15–25% of gross revenue as concession fees, while private operators retain the remaining operating margin. This ensures alignment of incentives: governments benefit from improved public health outcomes and non-tax fiscal inflows, while investors achieve stable, usage-driven cash flows from essential urban infrastructure services.

Executive Summary

List of Acronyms and Abbreviations

Chapter One: Introduction

Chapter Two: Overview of Sanitation and Hygiene Infrastructure in South Eastern Nigeria

Chapter Three: Concept of Paid Public Toilet Business Model

Chapter Four: PPP Framework for Public Toilet Infrastructure Development

Chapter Five: Market Analysis and Demand Assessment

Chapter Six: Site Selection and Infrastructure Planning

Chapter Seven: Financial Analysis and Investment Returns

Chapter Eight: Operations and Management Model

Chapter Nine: Risk Assessment and Mitigation

Chapter Ten: Implementation Strategy

Chapter Eleven: Case Studies and Benchmarking

Chapter Twelve: Policy Recommendations

Chapter Thirteen: Investment Opportunity Summary

Appendices A-E

References