The Witton

Comprising 141 premium residences across two architecturally distinctive buildings, The Witton achieved 6-Leaf EnviroDevelopment certification from the Urban Development Institute of Australia—demonstrating excellence across all six sustainability pillars: ecosystems, waste, energy, water, materials, and community.

Its most defining sustainability feature is the rehabilitation of more than 1,500sqm of previously degraded land—over 27% of the site—into a thriving native ecological corridor. Mosaic was not only required to preserve this section as part of the acquisition agreement with Scouts Queensland, but chose to elevate it into a lasting environmental contribution.

Delivering this complex regeneration during live construction presented significant challenges. With excavation, deliveries, and vertical build works underway, Mosaic staged the ecological works in close coordination with contractors and environmental consultants.

The process involved removing invasive species, introducing drought-tolerant native flora, and installing nesting boxes for microbats, parrots, and possums—restoring ecological function and long-term biodiversity in an urban infill context.

Sustainability was embedded across every layer of design and delivery. These features include:

• Australia’s first carbon-neutral concrete (Holcim ECOPact), low-VOC materials
• Over 20% recycled content in aluminium and glass.
• A 226-panel, 99kW rooftop solar system—the largest of its kind in Brisbane’s inner west— while EV chargers, a shared Tesla, and 12 e-bikes reduce transport emissions.
• The building envelope was designed for long-term performance, including high-performance double glazing to enhance thermal efficiency and acoustic comfort.
• An external structural skeleton enables deep eaves for passive shading and eliminates transfer slabs, reducing embodied carbon and improving buildability.
• Over 90% of construction waste was diverted from landfill via a comprehensive on-site management system. Water-saving measures such as stormwater harvesting, drip irrigation, and high-efficiency fixtures further reduce consumption.

Sustainability also extends to operations and community. Residents received education packs at handover, rooftop gardens promote connected living, and long-term in-house building management ensures performance is maintained.

The Witton demonstrates how ecological restoration, thoughtful design, and disciplined delivery can create places that are not only commercially successful but environmentally regenerative and socially valuable.

For more details, visit https://mosaicproperty.com.au/design/the-witton-by-mosaic/