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This case study by GreenCape examines the Century City Urban Square (CCUS), a mixed-use development by Rabie Property Group in Cape Town. The project demonstrates how the integration of treated effluent (TE) for non-potable uses—such as irrigation, cooling towers, and toilet flushing—reduces potable water demand, lowers operating costs, and increases resilience against climate-related shocks like droughts.

This 2020 industry brief by GreenCape examines the on-site treatment and reuse of grey- and blackwater to non-potable standards in South Africa. It outlines the technical processes for treating organic wastewater, the various technology variants available (such as pre-fabricated or constructed systems), and the regulatory landscape governed by the National Water Act and the National Environmental Management Act. The document highlights the economic and operational drivers for on-site treatment in both urban and rural settings, providing case studies from the Western Cape to demonstrate water and cost savings.

This case study by GreenCape examines the water stewardship and resilience strategies implemented by PepsiCo, focusing on its manufacturing facility in Parow, Cape Town. The document details how the company combines site-specific technological investments, such as advanced potato peeling equipment, with catchment-level initiatives and community water access projects to achieve its goal of becoming Net Water Positive by 2030.

The City of Cape Town is implementing the Faure New Water Scheme (NWS), a large-scale water reuse project designed to produce drinking-quality water from treated wastewater. As part of a broader New Water Programme aiming to add 300 million litres of water per day by 2030, the Faure NWS will utilize a multi-barrier advanced purification process to enhance the city's water resilience and reduce the risk of severe water restrictions.

This case study examines how BG Servers, a drum reconditioning SMME based in Cape Town, built water resilience over a 12-year period through investments in rainwater harvesting, groundwater abstraction, and water efficiency measures.

This case study examines how Mediclinic Southern Africa (MCSA) implemented water-saving technologies, specifically laundry wastewater recycling plants, across its hospitals to ensure operational continuity amidst water scarcity.

This case study by GreenCape examines how the Victoria & Alfred (V&A) Waterfront in Cape Town built water resilience over a ten-year period through a phased investment in green technologies and behavioral changes. By following a systematic 'Water Resilience Journey'—moving from low-cost efficiency measures to complex alternative water sources—the V&A reduced its annual water consumption by approximately 65% despite expanding its development.

This case study examines how the Southern Sun Newlands hotel in Cape Town improved its water resilience following a severe drought between 2015 and 2018. The hotel implemented a combination of behavioral changes, water-efficiency technologies, and the installation of a groundwater treatment plant to reduce municipal water reliance and operational costs.

The ACWA Platform is a pan-African alliance of 24 organizations and cities launched at COP27 to provide technical assistance and investments for water resilience in 100 African cities by 2032.