Refurbishment of Toilet
Blocks at Pet Garden of
Central and Western
District Promenade

Redefining Urban Sustainability

In the heart of Hong Kong’s bustling waterfront, a once-ordinary public toilet has been revitalised into a dynamic urban oasis. Combining low-carbon innovation, inclusive design and outdoor amenities, this refurbished facility at the Central and Western District Promenade now serves as a vibrant community hub.

Award-winning and human-centric, the new facility is designed for diverse users. It features a family-friendly toilet, inclusive unisex facilities, water bottle fillers, and resting benches—catering to outdoor lifestyles while providing spaces for relaxation and social interaction. Passive design strategies, including an internal vegetated landscape for cross-ventilation and a semi-open façade for natural daylighting, enhance user comfort while reducing energy demand. The façade with vibrant colour palette incorporated with featured urban skyline, echoes the Promenade’s greenery to create an iconic landmark.

Advancing Net zero is central to the design. By retaining the existing structure and systems, employing 3D concrete printing technology and utilising low-carbon materials—such as green concrete, glassfibre-reinforced plastic for facades, recycled palm fibres for cubicle partitions, and recycled glass for walls—the project achieved a remarkable 60% reduction in embodied carbon through a circular economy model. Renewable energy systems—including air-improvement photovoltaics (PV), a solar tree with wind turbines, and walkable PV paving—further slashed operational carbon emissions by 70%.