Building a Water Secure Future: A Catalogue of World Bank Group Knowledge Products

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PILLAR 1

Accelerate universal access to safe drinking water, sanitation and hygiene

Product Overview

Citywide Inclusive Sanitation (CWIS) is a comprehensive approach to achieving universal, safely managed urban sanitation by embracing diverse technologies, strengthening governance, and focusing on service delivery rather than infrastructure alone. Unlike traditional models focused on centralized sewerage, CWIS supports a mix of technical solutions—onsite, sewered, centralized, and decentralized—tailored to the needs of rapidly growing cities and underserved populations. The emphasis is on service provision and enabling environments, ensuring that all urban residents, including the poor and marginalized, benefit from adequate sanitation, unlocking environmental and human health, dignity and opportunity for all.

Why This Matters

Many urban sanitation systems are struggling to keep pace with rapid urbanization and are further challenged by climate vulnerability, governance and funding constraints, leaving millions—especially the poor and those in informal and peri-urban areas—without safe sanitation. Conventional approaches often rely on costly centralized infrastructure that fails to fully reach vulnerable communities, leading to:

  • Exclusion of vulnerable groups
  • Environmental degradation
  • Health risks from poor sanitation
  • Institutional fragmentation
  • Limited climate resilience

CWIS addresses these challenges by shifting the focus from infrastructure alone to inclusive service delivery and promoting inclusive, adaptive, and sustainable service models that cover the entire sanitation service chain, while fostering institutional reform and community engagement.

Key Highlights/Impact

• CWIS has shaped urban sanitation in 40+ countries, influencing over $6 billion in investments and reaching over 56.14 million people.

• CWIS approaches are mainstreamed in World Bank operations in multiple countries globally across all regions.

• The shift is from “infrastructure delivery” to “service delivery” - ensuring systems are maintained, affordable, and inclusive.

• CWIS projects contribute to jobs creation across the entire sanitation service chain - from construction and toilet installation to emptying, transportation, fecal sludge management, wastewater treatment, reuse, and resource recovery.

• CWIS projects contribute to climate and environmental resilience by supporting sustainable sanitation systems that manage waste safely, reduce pollution, and promote resource recovery and reuse

• The CWIS web hub (www.worldbank.org/cwis) offers tools, resources, and good practices for practitioners.

• Multiple global and regional knowledge events have served as capacity-building platforms, facilitating peer-to-peer learning exchanges and country-specific action plans.

• CWIS has elevated sanitation in climate adaptation and development agendas, informing national and regional strategies.

Key Contacts

• Sanyu Lutalo, Senior Water Specialist, slutalo@worldbank.org

• Alona Nesterova, Program Analyst, adaniuk@worldbank.org