Sustainability Report

Embodied carbon overview

• The project’s environmental ambitions were guided by design and construction strategies aligned with Singapore’s broader climate commitments, with particular emphasis on the adoption of PPVC (Prefabricated Prefinished Volumetric Construction).
• PPVC reduced construction waste, limited energy-intensive on-site activities, and enabled a faster construction programme. These measures contributed to reductions in embodied carbon during the construction phase while supporting Singapore’s long-term carbon-neutral strategy.
• At the construction level, the extensive use of PPVC was central to reducing environmental impact. The approach allowed each tower to be constructed using only one crane and eliminated the need for conventional scaffolding. Manufacturing the volumetric modules in a controlled factory environment improved material efficiency, reduced rework, and significantly minimised construction waste compared to traditional in-situ construction methods.
• PPVC also reduced the need for prolonged heavy machinery use on site, lowering noise, dust, and overall site energy consumption in the project’s dense urban context. The shortened construction timeline further reduced disruption to the surrounding neighbourhood and lowered cumulative site emissions.
• Early coordination between architectural, structural, and MEP elements supported the modular construction process by reducing clashes and limiting unnecessary material use.
• No project-specific embodied carbon data was available. However, PPVC is generally understood within the industry to reduce on-site construction time for high-rise residential projects by approximately 50 percent compared to conventional methods. From the start of on-site works to completion, the two 36-storey towers were delivered in two years, from November 2022 to November 2024.

Operational emissions overview

• Several passive and climate-responsive design strategies were incorporated into the project. These included preserving the historical trees on the site and reducing the footprint of the towers to 25 percent of the plot, freeing up the remaining 75 percent for landscaping and shared facilities. The towers are oriented to minimise direct west-facing units, with balconies and horizontal sun-shading ledges integrated into the facade.
• The facade strategy combines tinted glazing, deep balconies, and horizontal shading elements to reduce solar heat gain while maintaining daylight and views. These passive measures help limit direct solar exposure and enable natural cross-ventilation for end units.
• From an operational perspective, the building envelope and passive design strategies were intended to reduce cooling demand, which is the dominant contributor to residential energy use in Singapore. The minimisation of west-facing units, together with shading devices and glazing selection, was expected to improve thermal comfort and reduce long-term energy consumption compared with a typical residential tower configuration.
• Additional systems support operational energy efficiency. Lifts are equipped with sleep mode, variable voltage variable frequency (VVVF) drives, and regenerative power features. Apartments incorporate smart systems designed to reduce energy consumption throughout the year. A siphonic rainwater discharge system installed on the roof also enables efficient rainwater harvesting.
• The development achieved the BCA (Building and Construction Authority) Green Mark Gold Plus certification.

Service and maintenance emissions overview

• Material selection prioritised durability and resistance to Singapore’s humid tropical climate. Facade elements and finishes were chosen for their ability to weather well and minimise long-term maintenance requirements.
• Tile installation systems also supported indoor environmental performance. Products including Kerabond T adhesive and Keracolor FF grout by Mapei were used as part of the tile installation system. These cement-based materials are associated with very low VOC emissions and Environmental Product Declarations, contributing to low-emission interior material specifications.
• The building envelope follows established construction practices in Singapore, emphasising materials that provide durability, ease of maintenance, and reliable thermal performance rather than experimental systems.
• The PPVC construction method also contributes to long-term quality, as factory-controlled manufacturing improves consistency and reduces defects that could otherwise affect durability over time.