SDG 11: Sustainable Cities — Building Hydration Infrastructure for Resilient Urban Spaces

Cities at the Crossroads: The Promise of SDG 11

Among the 17 Sustainable Development Goals, SDG 11, Sustainable Cities and Communities, emerges as both a challenge and a promise. It calls for urban spaces that are inclusive, safe, resilient and sustainable, recognising that the future of humanity is an urban future.

In 2022, the world's population crossed 8 billion, with more than half already living in cities. By 2050, this figure will rise to nearly 70 per cent, making urban areas the stage upon which climate, inequality, health, and innovation will converge. Cities are where the Sustainable Development Goals are either won or lost.

Against this backdrop, SDG 11 is not simply about managing urban growth but about reimagining the very fabric of cities: how they house, transport, protect, and sustain their citizens. The goal's significance deepens when viewed through the lens of water, where hydration infrastructure becomes a litmus test of a city's inclusivity and foresight.

The trajectory towards SDG 11 was sharpened in October 2016 at the United Nations Conference on Housing and Sustainable Urban Development (Habitat III), held in Quito, Ecuador. This was the first UN global summit on urbanisation since the adoption of the 2030 Agenda.

Habitat III created a forum to confront pressing questions: how can cities be designed as engines of sustainable development? How should they align with the Paris Agreement on climate change? The summit culminated in the adoption of the New Urban Agenda, which redefined how we should build, manage and live in cities. It remains the foundational document for advancing SDG 11.

Target 11.1: By 2030, ensure access for all to adequate, safe and affordable housing and basic services and upgrade slums. Indicator 11.1.1: Proportion of urban population living in slums, informal settlements or inadequate housing.

Target 11.2: By 2030, provide access to safe, affordable, accessible and sustainable transport systems for all, improving road safety, notably by expanding public transport. Indicator 11.2.1: Proportion of population that has convenient access to public transport, by sex, age and persons with disabilities.

Target 11.3: By 2030, enhance inclusive and sustainable urbanisation and capacity for participatory, integrated and sustainable human settlement planning and management in all countries. Indicator 11.3.1: Ratio of land consumption rate to population growth rate. Indicator 11.3.2: Proportion of cities with a direct participation structure of civil society in urban planning and management that operate regularly and democratically.

Target 11.4: Strengthen efforts to protect and safeguard the world's cultural and natural heritage. Indicator 11.4.1: Total per capita expenditure on the preservation, protection and conservation of all cultural and natural heritage, by source of funding, type of heritage and level of government.

Target 11.5: By 2030, significantly reduce the number of deaths and economic losses caused by disasters, including water-related disasters. Indicator 11.5.1: Number of deaths, missing persons and directly affected persons attributed to disasters per 100,000 population. Indicator 11.5.2: Direct economic loss attributed to disasters in relation to GDP. Indicator 11.5.3: Damage to critical infrastructure and number of disruptions to basic services attributed to disasters.

From Vision to Metrics: Targets, Indicators & Urban Realities

Target 11.6: By 2030, reduce the adverse per capita environmental impact of cities, including by paying special attention to air quality and municipal and other waste management. Indicator 11.6.1: Proportion of municipal solid waste collected and managed in controlled facilities. Indicator 11.6.2: Annual mean levels of fine particulate matter in cities (population weighted).

Target 11.7: By 2030, provide universal access to safe, inclusive and accessible, green and public spaces. Indicator 11.7.1: Average share of the built-up area of cities that is open space for public use for all. Indicator 11.7.2: Proportion of persons victim of non-sexual or sexual harassment in the previous 12 months.

Target 11.a: Support positive economic, social and environmental links between urban, peri-urban and rural areas by strengthening national and regional development planning. Indicator 11.a.1: Number of countries that have national urban policies or regional development plans that respond to population dynamics, ensure balanced territorial development, and increase local fiscal space.

Target 11.b: By 2020, substantially increase the number of cities and human settlements adopting integrated policies towards inclusion, resource efficiency, mitigation and adaptation to climate change, and resilience to disasters, in line with the Sendai Framework. Indicator 11.b.1: Number of countries that adopt and implement national disaster risk reduction strategies. Indicator 11.b.2: Proportion of local governments that adopt and implement local disaster risk reduction strategies.

Target 11.c: Support least developed countries, including through financial and technical assistance, in building sustainable and resilient buildings utilising local materials.

The urgency of SDG 11 is underlined by demographic and climatic trends. Today, more than 1.12 billion people live in slums or informal settlements without adequate housing or basic services. Across the world, up to 3 billion people struggle with housing affordability, an unfulfilled basic need that lies at the heart of sustainable urbanisation.

Urbanisation magnifies climate pressures. By 2040, more than 2 billion city dwellers could experience an additional temperature rise of 0.5°C, while 36 per cent of the global urban population may face annual mean temperatures above 29°C. Since 1975, urban flood exposure has been 3.5 times that of rural areas.

Green spaces, critical for resilience, are shrinking — they declined globally from 19.5 per cent in 1990 to 13.9 per cent in 2020. Yet climate-resilient infrastructure requires between US$4.5 trillion and US$5.4 trillion annually through 2030, but in 2021–22, cities received only US$831 billion per year, of which just 1 per cent supported adaptation.

Water as Urban Infrastructure: WAE's Blueprint for Resilient Cities

When cities plan for sustainability, water is often viewed through the lens of large-scale supply, sewage, and flood resilience. Yet the most intimate point of contact — how urban dwellers drink water daily — is often overlooked. The proliferation of single-use plastic bottles in offices, transit hubs, and commercial complexes undermines the very principles of SDG 11.

Reimagining hydration as part of urban infrastructure is no longer a luxury but a necessity. By embedding sustainable hydration solutions, cities can align micro-choices with macro-ambitions — reduced plastic waste, lowered carbon emissions, improved public health, and a stronger alignment with ESG frameworks.

Future-ready cities must embrace a vision where access to safe drinking water is not commodified through plastic but democratised through zero-waste, inclusive systems. WAE's philosophy offers a critical blueprint here. By engineering stainless steel water dispensers and world-class glass bottling plants, WAE is not merely manufacturing hydration systems; it is architecting resilience for cities under pressure.

Every installation replaces thousands of plastic bottles, every refill prevents microplastics from entering human bodies, and every sustainable design choice echoes SDG 11's ambition of inclusivity, safety, resilience, and sustainability.

To truly deliver on SDG 11, infrastructure must converge with culture. Plastic-free hydration stations in workplaces and public environments signal more than convenience — they embody values of equity, shared responsibility, and intergenerational stewardship.

WAE's interventions embody this shift. The use of SS-304 stainless steel, the integration of automation and touchless technology, and a zero-waste design philosophy transform water consumption into a symbol of civic responsibility.

Sustainable cities will not be judged merely by their skylines, but by their ability to nurture life without compromise. In this reimagined future, hydration systems stand as silent sentinels of responsibility. If cities are the stage upon which humanity writes its next chapter, then water is the ink.

"Sustainable Urbanism is the Poetry of Human and Natural Systems in Dialogue." — Peter Calthorpe