GREEN

Site grading can utilise existing in-situ materials.

• Adopting a “cut and fill” strategy for making landforms can reduce the need for importing earth.
• For derelict sites, inert on-site waste can be reclaimed as infill material to transform the topography.

Pre-existing structures can be repurposed to reduce construction waste.

• The pre-existing structures in the POS can be preserved to create a historical and cultural atmosphere. Preserving various elements, such as industrial objects, abandoned structures, and built ruins can give them a second life and reduce construction waste in building the POS.
• Abandoned spaces that served different purposes previously can be revitalised as part of the new POS by preserving existing structures. This also keeps the past memories of the neighbourhood alive.

Sustainable construction approaches can ensure better cost performance.

• Standardised or modular construction approaches can reduce energy consumption. For example, reusing precast moulds can also save time and cost.

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Build structures with suitable materials and forms to reduce the ecological footprint.

• When selecting materials, consider the material type, life cycle (durability), and place of origin to minimise its ecological footprint. Local recycled materials are preferred.

• Structural forms should maximise natural lighting and optimise indoor air circulation to provide a comfortable environment and reduce energy consumption. Plantings can also be integrated with structures to create a comfortable microclimate.

Improve walkability to promote green transport.

• The pedestrian system of the POS can contribute to the larger urban network and promote green transport. Multiple openings and urban interface connections can help link the POS to adjacent neighbourhoods in the city. Pedestrian-friendly public spaces reduce energy consumption in transportation.

This Design Parameter may not apply to Sitting-Out Area and Public Play Space, as these POS types are smaller in size.

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Generate renewable energy on-site to save energy.

• Solar panels can be installed to power facilities on site, for example street lighting and power outlets for appliances.
• Use responsive technology. For example, kinetic tiles or panels can be considered as part of the POS design to generate electricity when users interact with them. Digital interactive platforms, such as mobile applications, could share real-time data on energy saved, offering a means to engage environmentally conscious users.

Install water recycling system to reduce daily water consumption.

• On-site grey water can be reclaimed and reused through Sewage Treatment Works. Early consultation with relevant government departments may be needed. You may find it helpful to use Design Thinking Tool “Expand knowledge-Content & Method Cards” to facilitate knowledge-sharing sessions.
• Rain and irrigation water can be recycled through a stormwater storage system, especially when there are large landscape areas for water catchment. The use of recycled porous pavement blocks can increase the recycling rate and reduce production costs.
• Water features can be considered to serve as part of the recycling system. Plant roots can purify water and help benefit the environment.

This Design Parameter may not apply to Country Parks, where unnecessary engineering interventions should be avoided to preserve natural habitats.

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