Cape Town’s water resilience strategy is attracting global attention as cities facing climate uncertainty look to its drought lessons, infrastructure investment and long-term sustainability planning today.
A delegation from Malaysia’s Penang Water Supply Corporation (PWSC) recently visited the City of Cape Town to study how the city transformed one of the world’s most severe urban drought crises into a blueprint for water resilience, innovation and sustainability.
The visit, hosted by the City’s Water and Sanitation Directorate, included a technical tour of the Zandvliet Wastewater Treatment Works — a critical facility in Cape Town’s long-term strategy to diversify water sources and reduce dependence on rainfall-driven dam systems.
The Malaysian delegation represents a state-owned utility responsible for managing the full water cycle in Penang, from raw water abstraction and treatment to distribution and billing. Their interest in Cape Town’s model reflects a growing global reality: climate change is forcing cities to rethink water security as a matter of survival, not convenience.
Cape Town’s approach is rooted in lessons learned during the 2018 drought, when the city came dangerously close to running out of water. In response, authorities implemented aggressive demand management and behavioural interventions, including pressure reduction across the network, public awareness campaigns and targeted leak repair programmes in vulnerable communities.
Door-to-door engagements with high-consumption users, including agricultural operators and commercial facilities, helped drive behavioural change. The City also accelerated infrastructure upgrades, replacing ageing pipelines and expanding the use of treated effluent for irrigation and industrial use — reducing pressure on drinking water supplies.
These measures were supported by regulatory reforms, improved tariff structures and advanced monitoring tools, including Geographic Information System tracking of water consumption and the rollout of smart water meters through the Advanced Metering Infrastructure programme.
At the centre of Cape Town’s future resilience is its New Water Programme, which includes large-scale water reuse. Treated effluent from the Zandvliet facility will feed into the Faure New Water Scheme, where advanced purification technology will convert reclaimed water into safe drinking water.
Mayoral Committee Member for Water and Sanitation, Zahid Badroodien, said the initiative represents a fundamental shift in how cities secure water.
“This strategy will increase and diversify the City’s drinking water supply by between 70 and 100 million litres per day,” he said. “It forms part of our action plan to build a resilient system capable of withstanding future climate shocks.”
The programme is expected to significantly strengthen Cape Town’s long-term water security by 2031, reducing vulnerability to drought while supporting population growth and economic development.
