NABERS Rating & Assessment in Australia
NABERS assessment is a national system that measures the environmental performance of buildings across Australia. It evaluates key areas such as energy efficiency, water use, indoor environment quality, waste management, and carbon impact for commercial properties, including offices, hotels, shopping centres, and data centres.
Administered by the New South Wales government, NABERS also supports Climate Active Carbon Neutral certification, helping businesses demonstrate real progress in sustainability. Afogreen Build offers professional NABERS assessment services, providing accurate ratings and practical strategies to enhance building performance and minimise environmental impact.
What is NABERS Assessment?
The National Australian Built Environment Rating System (NABERS) is a government-backed sustainability framework that measures the efficiency with which buildings use energy, water, and other resources. It provides an easy-to-understand star rating (ranging from one to six stars) that reflects a building’s actual environmental performance.
A NABERS assessment evaluates:
- Energy performance: How efficiently a building uses energy.
- Water consumption: How well it conserves and manages water use.
- Indoor environment quality: The comfort and well-being of occupants through air quality, lighting, and temperature.
- Waste management: How effectively waste is reduced, recycled, or disposed of.
Additional certifications under NABERS for buildings include ratings for embodied carbon, renewable energy, and carbon neutrality. Working with a qualified NABERS consultant or assessor ensures accurate benchmarking and compliance with NABERS certification standards, helping property owners enhance performance, attract tenants, and achieve measurable sustainability outcomes.
Why is NABERS Important?
NABERS certification is a key benchmark for sustainability and is legally required for commercial buildings in Australia over 1,000 square metres at the point of sale or lease. A professional NABERS assessment not only ensures compliance but also helps optimise performance, cut costs, and boost long-term value.
Key benefits include:
- Regulatory Compliance: Meets mandatory energy disclosure requirements and supports government sustainability goals.
- Energy Efficiency: Through NABERS Energy certification, buildings can lower energy use and operating costs while improving overall performance.
- Water Conservation: Helps reduce water consumption by up to 70% with better management and tracking.
- Healthier Indoor Environment: Enhances air quality, lighting, and thermal comfort, improving occupant wellbeing and productivity.
- Higher Property Value: Strengthens market reputation, attracts premium tenants, and demonstrates environmental leadership.
- Sustainable Building Performance: Promotes lower embodied carbon, smarter waste management, and continuous improvement in building ratings.
Benefits of NABERS for Commercial and Residential Properties
The NABERS framework provides tangible benefits for building owners and managers across Australia, enabling them to enhance both environmental and financial performance. A well-executed NABERS assessment can transform how properties operate, attract tenants, and comply with regulations.
1. Lower Operating Costs
By improving energy and water efficiency through NABERS certification, buildings can significantly reduce utility bills and maintenance expenses over time.
2. Higher Asset Value
Properties with strong NABERS ratings often enjoy increased market appeal and higher resale or leasing value, signalling strong sustainability credentials to investors.
3. Tenant Attraction and Retention
Premium tenants increasingly prioritise green-rated spaces that enhance comfort, productivity, and corporate responsibility. A verified NABERS Energy certification boosts confidence and satisfaction among occupants.
4. Regulatory Compliance
For office buildings above 1,000 square metres, NABERS assessments help meet Australia’s mandatory disclosure requirements while aligning with national climate and energy targets.
5. Stronger Market Reputation
Working with an experienced NABERS consultant helps position your property as a sustainability leader, enhancing brand credibility and long-term stakeholder trust.
How NABERS Impacts Building Efficiency
The NABERS framework directly enhances a building’s operational performance by setting measurable benchmarks for efficiency and sustainability. Through regular NABERS assessments, property owners and managers gain clear insights into how their buildings use energy, water, and other resources, and where improvements can be made.
- Energy Efficiency: A NABERS Energy certification identifies high-consumption systems and guides upgrades in lighting, HVAC, and equipment to reduce energy costs and emissions.
- Water Management: Tracking usage through NABERS Water certification helps detect leaks, optimise plumbing systems, and encourage water-saving technologies.
- Resource Efficiency: A professional NABERS assessor evaluates waste streams and resource use, helping implement recycling initiatives and minimise embodied carbon.
- Continuous Improvement: The framework promotes ongoing monitoring, enabling building owners to track performance trends and maintain strong NABERS ratings for buildings over time.
By working with a qualified NABERS consultant, building owners can turn performance data into actionable strategies that enhance efficiency, reduce costs, and elevate sustainability outcomes.
How the NABERS Assessment Process Works
The NABERS assessment process follows a structured approach to ensure accurate benchmarking and compliance. Working with an accredited NABERS consultant or assessor helps streamline each step and ensures your building’s performance is rated correctly.
1. Data Collection
The process begins with gathering essential information such as utility bills, energy and water consumption records, occupancy data, and metering details. Accurate, up-to-date data is crucial for a reliable certification outcome.
2. Site Review and Verification
An accredited assessor reviews the building’s systems, layout, and operations to verify the accuracy of the data. This step may include site visits to verify metering points, operational schedules, and equipment performance.
3. Assessment and Rating Calculation
The NABERS assessor uses verified data to calculate your building’s rating across key categories, including energy, water, waste, and indoor environmental quality. The result is expressed as a star rating from one (below average) to six (market-leading performance).
4. Rating Validity and Renewal
A NABERS building rating is valid for 12 months. Annual reassessment helps maintain compliance, demonstrate ongoing improvements, and qualify for recognition in sustainability reporting.
5. Timeline and Cost Considerations
Depending on project size and data availability, the whole process typically takes four to eight weeks. Costs vary based on the building type, size, and scope of the NABERS assessment, but early planning with your consultant helps manage timelines and budget effectively.
Why Choose Us for Your NABERS Assessment
Afogreen Build is a trusted sustainability partner with extensive experience conducting NABERS assessments across Australia. Our team combines technical expertise with a strong understanding of local building operations to deliver accurate, efficient, and meaningful results.
We handle every step of the process, from data collection and verification to reporting and submission, ensuring a smooth experience and quick turnaround. Our approach focuses on clarity, precision, and value creation, helping building owners reduce costs, meet compliance requirements, and improve long-term performance.
Partner with Afogreen Build to achieve credible NABERS ratings that strengthen your property’s sustainability standing and enhance its market value.
Frequently Asked Questions (FAQs)
How much does a NABERS rating cost?
Costs for obtaining a NABERS rating vary depending on the size and complexity of the building, the rating system selected, and whether ongoing monitoring or recertification is needed. For a detailed quote and guidance tailored to your property, reach out to our sustainable building consultant team to learn more.
How long does it take to get a NABERS rating?
The process can several months, depending on the scope of the rating, the building’s current performance, and the availability of data required for assessment. Factors like data collection, improvement actions, and analysis can influence the timeline. For further information, you can contact us directly.
Can a building improve its NABERS rating over time?
Yes. Buildings can enhance their NABERS rating by adopting sustainability strategies such as improving energy efficiency, reducing water consumption, and optimising indoor air quality. Incorporating building simulations, such as thermal modelling, can also identify performance gaps and guide effective upgrades. Once improvements are implemented, a reassessment can help achieve a higher, more competitive rating.
Is NABERS applicable to all building types?
NABERS is applicable to a wide range of building types, including apartment buildings, data centres, hotels, office, public hospitals, residential aged care, retail stores, retirement living, schools, shopping centres, warehouses and cold stores, etc.
Whether you’re looking at NABERS for commercial buildings or NABERS for residential properties, the system provides comprehensive sustainability ratings for diverse property sectors.
How often does a building need to be recertified?
NABERS ratings are typically valid for 12 months, with buildings needing to undergo recertification annually to maintain their rating. Ongoing performance monitoring may be required in certain rating systems (e.g., NABERS Energy or NABERS Water).
What role does NABERS play in the broader environmental and sustainability movement?
NABERS contributes to global sustainability goals by promoting transparency in building performance and encouraging operational improvements that reduce environmental impacts. It also supports corporate sustainability initiatives by helping organisations achieve their environmental targets, such as reducing carbon footprints and conserving resources. As more buildings pursue NABERS ratings, the collective impact helps to drive large-scale improvements in urban sustainability and climate change mitigation.
How does NABERS fit with other certification systems like Green Star, NatHERS, BASIX, and Section J?
NABERS can work alongside systems like Green Star, NatHERS, BASIX, and Section J of the NCC. If design inputs or principles from these systems align with a building’s expected operation, they can be used in NABERS performance assessments. This allows buildings to meet both design and operational sustainability targets.