In this article, we're going to discuss:

• Expertise in Sustainable Building Practices
• Comprehensive BASIX Assessments
• Optimising Water Efficiency
• Enhancing Thermal Comfort
• Maximising Energy Efficiency
• Integrating Renewable Energy Solutions
• Conclusion

Introduction

Sustainability has become a cornerstone of modern residential development. The Building Sustainability Index (BASIX) was introduced by the NSW Government in 2004 as part of the Environmental Planning and Assessment Act to promote sustainable residential development. BASIX aims to reduce water consumption by up to 40% and greenhouse gas emissions by up to 25%, (Certified Energy, 2024). thereby contributing to more resilient and environmentally friendly dwellings . Achieving these targets not only benefits the environment but also delivers financial savings for homeowners through reduced utility bills.

NatHERS (Nationwide House Energy Rating Scheme) is now seeking consultation to include energy performance ratings for existing homes ahead of the launch in mid-2025. The recent updates to NatHERS will be leveraged to measure the home’s energy performance, providing ratings based on the home’s design, materials, constructions, fixed appliances, on-site energy generation and storage.

Viewshed diagrams are a powerful tool for visualising the potential impact of climate change on landscapes and informing adaptation strategies. These diagrams depict the areas visible from a particular vantage point and provide valuable information about the surrounding landscape, including land use, topography, and vegetation cover. They are widely used in landscape planning, environmental impact assessments, and natural resource management.

Visual Impact Assessments (VIA) are an essential process used to evaluate the potential environmental impact of proposed projects on the surrounding community. These assessments help identify potential negative effects on the environment, wildlife, and people. 

The sustainable energy alternative, Wind Turbines, are often used in areas of wide open space to generate large amounts of electricity. 

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What is a Passive House?

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What is a Passive House Retrofit?

Passive House retrofit is the process of upgrading an existing building to meet the Passive House standard. This typically involves improving the building's insulation, airtightness, and windows, and ensuring that the building has a good thermal envelope. A retrofitted Passive House should consume much less energy for heating and cooling and provide a comfortable indoor environment with good air quality.

Retrofitting an existing building to Passive House standards can be challenging and may require significant work and investment. However, the benefits of a retrofitted Passive House can be substantial, including significant energy savings, reduced carbon emissions, and improved indoor comfort.

Retrofitting a building to Passive House standards usually begins with an energy assessment to identify the building's current energy consumption and areas for improvement. Then, an energy-efficient design is developed, taking into account the specific conditions of the building, such as 

its orientation, size, and existing materials. The retrofit work is then carried out, including adding insulation, sealing air leaks, and upgrading the building's windows. Finally, the retrofitted building is tested to ensure that it meets the Passive House standard.

And in return, when a retrofit achieves Passive House standards, the home is certified as EnerPHit for certified retrofits.