Commercial Operational Performance | NABERS
Understand how NABERS uses measured operational data to rate the performance of Australian commercial buildings and tenancies.
This guide explains what NABERS measures, the information commonly required and how operational ratings differ from design compliance, disclosure documentation, strategic improvement planning and embodied emissions reporting.
Explore NABERS RatingsIn Brief
NABERS is Australia's national rating system for measuring the operational performance of commercial buildings and tenancies using measured building data. Depending on the applicable rating pathway, it may assess operational performance across areas such as energy, water, waste and indoor environment quality.
A NABERS rating reflects actual building performance rather than predicted design performance, making it distinct from design compliance pathways such as Section J and JV3. Instead of assessing how a building is expected to perform, NABERS evaluates existing and operational buildings using measured data collected during normal building operation.
NABERS ratings are used across a wide range of commercial and institutional building types, including offices, shopping centres, hotels, apartment buildings and other large assets. Within Australia's broader building performance framework, NABERS supports operational accountability, consistent performance benchmarking and a clearer understanding of how buildings perform throughout their operational life.
Depending on the applicable rating, NABERS measures operational performance across areas such as energy, water, waste and indoor environment quality using verified building data.
Design compliance predicts how a building is expected to perform. NABERS measures how a building actually performs once it is occupied and operating.
Measured operational performance helps owners, managers and tenants benchmark building performance, understand operational outcomes and support informed building management decisions over time.
Knowledge Navigation
Follow the sections below to understand what NABERS measures, how rating scopes are defined, which operational information may be required and how NABERS differs from design compliance, disclosure documentation and broader sustainability frameworks.
Foundation
Understand NABERS as a rating system based on measured operational performance rather than predicted design outcomes.
Performance Categories
Explore operational performance categories such as energy, water, waste and indoor environment where applicable.
Rating Scope
Learn how a rating may relate to a base building, whole building or tenancy context, depending on the applicable rating rules.
Operational Data
Review the utility data, metering records, floor area information, operating details and supporting evidence commonly considered during an assessment.
Assessment Process
Follow the general pathway from confirming the rating scope and reviewing evidence through to completing the applicable rating process.
Building Context
Understand when measured performance benchmarking may support owners, managers, tenants and other commercial property stakeholders.
System Boundaries
Compare NABERS with NABERS Strategic, Section J, JV3, BEEC, TLA, Green Star and embodied emissions reporting.
Clarification
Clarify common confusion about rating scope, operational evidence, design compliance, NatHERS and expected rating outcomes.
Operational Performance
NABERS provides a structured way to measure and benchmark how a building or tenancy performs during actual operation. Its focus is not what the design was expected to achieve, but what can be demonstrated through operational data and supporting evidence.
A NABERS rating is prepared using measured information from a building or tenancy over an applicable operational period. Depending on the rating type, this may include energy consumption, water use, waste records, indoor environment information and other evidence required under the current NABERS rules.
The relevant data is considered within a defined rating scope. For an office property, for example, that scope may relate to the base building, a tenancy or the whole building where the applicable rating pathway permits it. Establishing the correct boundary is important because it determines which services, areas, meters and operating information belong within the assessment.
The resulting rating allows performance to be compared with an appropriate benchmark. It creates a consistent evidence-based picture of current operational performance, rather than a forecast of how the building might perform under assumed conditions.
Measured
NABERS uses operational records and evidence associated with a functioning building or tenancy. The exact inputs depend on the performance category, building type and applicable rating rules.
Defined
The assessment must establish which part of the asset is being rated and which consumption, services and operational conditions belong within that scope.
Benchmarked
The rating places measured performance within the relevant NABERS benchmark so owners, managers and tenants can understand the building in an appropriate operational context.
NABERS does not replace the energy efficiency provisions addressed through Section J or a JV3 assessment. Those pathways examine design and construction compliance under the National Construction Code. NABERS examines measured performance once the relevant building or tenancy is operating. A compliant design and an operational rating therefore answer different building performance questions.
Related Reading
Incomplete data, unclear rating boundaries and assumptions made before the evidence is reviewed can complicate an assessment.
Read common mistakes that lower NABERS ratingsMeasured Building Performance
A building may have been designed to meet a particular performance target, but its actual operation is shaped by occupancy, controls, metering, services, maintenance and patterns of use. NABERS provides a way to assess that real operational outcome.
Design Intent
Design-stage assessments use drawings, specifications, models and defined assumptions to evaluate intended performance or demonstrate compliance before construction or occupation.
Pathways such as Section J and JV3 belong to this design and compliance context.
In Operation
Operational assessment looks at what occurs after a building or tenancy is functioning. It uses measured data and supporting evidence to establish how the asset has performed during the applicable rating period.
NABERS belongs to this measured performance context and provides a benchmarked view of current operational outcomes.
A design model is necessarily based on assumptions about matters such as operating schedules, occupancy, equipment, setpoints and system behaviour. Once a building is occupied, its real performance can also be influenced by tenant activity, seasonal conditions, controls, maintenance practices, metering arrangements and the way building services are operated.
For this reason, design compliance and operational assessment should not be treated as interchangeable. One considers whether the proposed design follows an applicable pathway. The other considers what the building or tenancy can demonstrate through actual operational evidence.
NABERS ratings are generally current for a defined period rather than permanent. This allows owners, managers and tenants to track measured performance over time and understand whether operational outcomes are changing between rating cycles. Exact requirements depend on the rating type, building context and current NABERS rules.
A consistent rating framework can help stakeholders interpret measured performance within the relevant building and rating context.
Measured information gives owners, managers and tenants a clearer basis for discussing current building performance.
Repeated ratings can support comparison between rating periods, subject to a consistent scope and the applicable NABERS rules.
The formal rating provides evidence of measured performance. Where an owner or manager then needs to consider future rating targets, operational priorities or a staged improvement pathway, that work belongs within a separate NABERS Strategic process. The distinction is important: NABERS establishes the current operational position, while strategic advice considers what may happen next.
Related Reading
Where measured performance is below a desired target, separate analysis may be needed before priorities or future rating expectations are established.
Read how NABERS rating improvement is approached
Performance Categories
NABERS is not a single rating. Subject to the applicable NABERS rules, building type and assessment pathway, it may evaluate different aspects of operational building performance. Each rating category measures a specific part of how a building or tenancy performs during everyday operation.
Operational Energy
NABERS Energy measures operational energy performance using measured building information and the applicable assessment methodology. Depending on the rating pathway, assessments may relate to a base building, tenancy or whole building.
Learn about NABERS Energy →Water Performance
NABERS Water assesses operational water performance where an applicable rating pathway exists. Water consumption is considered within the relevant building context and assessment scope.
Learn about NABERS Water →Waste Performance
NABERS Waste provides a framework for assessing operational waste management and resource recovery where the relevant NABERS methodology applies.
Learn about NABERS Waste →Indoor Environment
Indoor Environment ratings consider aspects of indoor environmental quality using the applicable NABERS methodology and supporting operational evidence.
Learn about Indoor Environment Ratings →Each NABERS rating focuses on a specific aspect of operational building performance rather than attempting to measure every part of a building through a single assessment. The applicable rating category depends on the building type, rating scope and current NABERS methodology.
Together these rating pathways provide owners, managers and tenants with a clearer understanding of measured operational performance across different building systems, while allowing each assessment to remain focused on its own evidence requirements and benchmarking methodology.
While NABERS measures operational outcomes, broader sustainability frameworks such as Green Star or WELL evaluate different aspects of building sustainability and occupant wellbeing. Likewise, Embodied Carbon Reporting considers the carbon associated with building materials rather than operational performance.
Related Reading
Learn how NABERS compares with other Australian and international building performance frameworks.
Green Star vs NABERS → WELL Rating vs NABERS →Rating Scope
A NABERS rating must have a clearly defined scope. For office ratings, this may relate to the services controlled by the building owner, the space operated by a tenant or the combined performance of the whole building.
The rating scope establishes which building areas, services, meters, consumption records and operational responsibilities belong within the assessment. It also helps distinguish between energy controlled by the landlord and energy associated with the activities of individual tenants.
This distinction is particularly important in multi-tenanted office buildings, where central plant and common services may be managed separately from lighting, equipment and other energy use within leased spaces. A clear boundary allows the relevant operational data to be reviewed against the correct NABERS rating pathway.
Base building, tenancy and whole building scopes do not automatically apply to every building type or every NABERS category. The available scope should be confirmed against the current NABERS rules for the particular asset and rating being considered.
Landlord Controlled
A base building rating generally focuses on the operational services provided and controlled by the building owner for the office accommodation and common areas within the defined rating scope.
Relevant services may include central building systems and shared services, subject to the applicable NABERS methodology, metering arrangements and rating boundary.
Occupier Controlled
A tenancy rating considers the operational performance of the space occupied and managed by an individual organisation within a building.
The assessment boundary is generally centred on the tenant-controlled space, associated consumption and relevant operating information rather than the performance of the entire property.
Combined Scope
A whole building rating brings the base building and tenant-occupied areas into a combined operational assessment where that rating pathway is available.
This scope may be particularly relevant where one organisation occupies an entire office building or where the required building and tenancy information can be assessed together.
Step One
The building type, performance category and purpose of the assessment should be established before data collection begins. This helps determine whether an applicable base building, tenancy or whole building pathway is available.
Step Two
Utility data, meters, floor areas, operating details and supporting records must relate to the selected scope. Unclear boundaries or mixed landlord and tenant consumption can create data gaps that require clarification before the assessment proceeds.
A NABERS tenancy rating measures the operational performance of an occupied tenancy within the relevant rating scope. A Tenancy Lighting Assessment is separate documentation associated with the lighting performance of office tenancy areas in applicable commercial disclosure contexts. Although both may involve a tenancy, they answer different questions and follow different processes.
Related Reading
Understand why a NABERS Energy rating and a Tenancy Lighting Assessment may appear within the same property context without being the same assessment.
Read NABERS and Tenancy Lighting Assessments ExplainedThe next step: once the rating scope has been confirmed, the available operational data, metering records and supporting evidence can be reviewed. Continue to what information is usually needed for a NABERS rating.
Operational Data
A NABERS assessment depends on reliable operational information that matches the selected building, tenancy and rating boundary. The exact inputs vary by building type, performance category and current NABERS rules.
Operational data is only useful when it can be connected clearly to the part of the building being assessed. Utility accounts, meters, floor areas and operating records should align with the confirmed rating boundary so that unrelated consumption is not inadvertently included and relevant consumption is not omitted.
For an energy or water rating, this may require a review of utility bills, meter registers, submetering arrangements and the periods covered by each record. For other NABERS categories, the evidence may involve waste records, indoor environment measurements or category-specific operational information.
The information below is indicative rather than universal. An accredited assessor should confirm the required evidence against the current NABERS rules for the selected rating type and building context.
Scope
The building address, asset type, proposed rating category and whether the assessment relates to a base building, tenancy, whole building or another applicable scope.
Consumption
Energy or water bills, meter readings, account information, meter identifiers and records showing which areas or services are captured by each source.
Physical Context
Floor area records, leasing plans, tenancy schedules or other documents that help confirm the physical extent of the space included in the assessment.
Use Patterns
Operating hours, occupancy information and other contextual data required by the applicable methodology to describe how the building or tenancy was used.
Supporting Evidence
Building management records, plant or services information, metering diagrams and other documents needed to explain the data or verify the assessment boundary.
Rating History
Earlier rating certificates, assessment records or known changes to the building can provide useful context, although the current assessment must still satisfy current evidence requirements.
01
Check that the available records cover the operational period required for the applicable assessment and identify any gaps or overlapping account periods.
02
Establish which building areas and services each utility or non-utility meter serves and whether its consumption belongs within the rating boundary.
03
Clarify missing invoices, unexplained meter changes, incomplete records or differences between the documented scope and the available operational information.
Incomplete consumption records, unclear metering arrangements or an uncertain rating boundary do not automatically determine the outcome of an assessment. They do, however, need to be identified and considered under the applicable NABERS evidence rules before the rating can be completed.
Early review allows the assessor and project team to understand what is available, what requires clarification and whether additional records may be needed. Where the objective is to estimate or plan for a future score rather than complete a formal operational rating, that work belongs within a separate NABERS Strategic pathway.
Related Reading
Unclear boundaries, missing operational records and unresolved metering issues can complicate the assessment process.
Read common mistakes that lower NABERS ratingsThe next step: once the rating scope and available evidence are understood, the assessment pathway can be coordinated. Continue to how the NABERS rating process works.
Assessment Process
Every NABERS assessment follows the same overall objective: establish the correct rating scope, review operational evidence and prepare the rating using the applicable NABERS methodology. The exact documentation and workflow vary according to the building type and rating category.
Unlike Section J or JV3, a NABERS assessment is not undertaken using architectural drawings or performance modelling alone. The assessment is built around measured operational information collected from a functioning building or tenancy.
Although each project differs, the overall assessment pathway generally follows a consistent sequence that begins with defining the rating scope and concludes with the preparation of the relevant rating documentation.
STEP 01
Identify the applicable NABERS pathway, the building or tenancy being assessed and the operational boundary that will apply throughout the assessment.
STEP 02
Utility information, operational records, floor areas, metering details and supporting documentation are reviewed against the applicable methodology.
STEP 03
Any missing information, unclear metering arrangements or inconsistencies can be clarified before the assessment proceeds.
STEP 04
The operational information is assessed using the applicable NABERS rules for the selected rating category and building type.
STEP 05
Once the assessment has been completed in accordance with the applicable process, the rating documentation can be finalised.
STEP 06
The completed rating provides an evidence-based benchmark of current operational performance. Future improvement planning, where required, belongs within a separate NABERS Strategic process.
One of the most common misconceptions is that preparing a NABERS rating begins with calculations. In practice, experienced assessors generally spend considerable time confirming the rating boundary, reviewing available operational evidence and identifying potential data issues before any formal assessment is undertaken.
Taking time to establish a clear operational scope can reduce unnecessary delays later in the project and provides greater confidence that the available evidence reflects the part of the building actually being assessed.
A completed NABERS assessment reflects measured operational performance during the applicable assessment period. It should not be interpreted as a prediction of future operating costs, future energy consumption or future NABERS ratings. Where organisations wish to understand potential future performance or develop a staged pathway towards a target rating, a separate NABERS Strategic review is generally more appropriate.
Related Reading
Understand the factors that influence assessment timing, evidence collection and project coordination.
Read the guide →Next: Learn how NABERS compares with Section J, JV3, BEEC, Green Star and other building performance systems.
Building Performance Context
NABERS is one part of Australia's broader building performance ecosystem. It measures operational performance after a building is in use, while other frameworks address compliance, design, sustainability certification, occupant wellbeing or embodied environmental impacts.
One of the most common misunderstandings in commercial building performance is assuming that every sustainability assessment measures the same thing. In reality, each framework has been developed to answer a different question. Some assess whether a proposed design complies with the National Construction Code, while others evaluate environmental certification, operational performance or occupant wellbeing.
Understanding the role of each framework makes it easier to select the right assessment for the right stage of a project's lifecycle and avoids confusion between compliance, certification and measured operational performance.
National Construction Code
Section J and JV3 demonstrate compliance with NCC energy efficiency requirements during design. NABERS measures how a completed building actually performs once it is operating.
Explore Section J →Commercial Disclosure
Building Energy Efficiency Certificates and Tenancy Lighting Assessments support commercial office disclosure requirements. They are related to NABERS in some situations but are separate assessment processes with different objectives.
Learn about BEEC →Building Certification
These frameworks assess broader sustainability, environmental performance and occupant wellbeing. While they may recognise operational performance, they are not operational rating systems in the same way as NABERS.
Green Star →Life Cycle Performance
Embodied carbon assessments evaluate emissions associated with construction materials and building products. NABERS focuses on operational performance after occupation rather than construction impacts.
Explore Embodied Carbon →It is entirely normal for a commercial building to be associated with multiple assessment frameworks throughout its lifecycle. During design it may demonstrate NCC compliance through Section J or JV3. During construction it may pursue Green Star certification. Once occupied it may obtain a NABERS rating, while office leasing may involve Building Energy Efficiency Certificates and Tenancy Lighting Assessments where applicable.
These assessments complement one another rather than replace one another. Each contributes different information about the building and should be understood within its own purpose and methodology.
Although high-performing buildings often perform well across multiple frameworks, one assessment cannot generally replace another. A NABERS rating does not demonstrate NCC compliance, and Section J compliance does not establish an operational NABERS rating. Each system has its own evidence requirements, methodology and intended application.
Related Reading
Understand how Australia's most common commercial building assessment frameworks differ.
Green Star vs NABERS → NABERS vs Section J → NABERS vs BEEC →Next: Explore the most common misconceptions about NABERS ratings and understand where confusion often arises between operational ratings, compliance pathways and sustainability certification.
Common Questions
Many questions about NABERS arise because it sits alongside compliance pathways, sustainability certifications and commercial disclosure requirements. Understanding what NABERS does—and what it does not do—helps avoid unnecessary confusion.
Misunderstanding
NABERS measures operational building performance using measured information from an operating building or tenancy. Design-stage assessments remain separate processes, including Section J and JV3.
Misunderstanding
Operational performance and NCC compliance answer different questions. A building may achieve excellent operational performance while compliance remains a separate regulatory assessment.
Misunderstanding
Different rating categories apply to different asset types and operational situations. Eligibility depends on the building, rating scope and the current NABERS methodology.
Only once there is sufficient operational information available for the applicable rating pathway. Newly completed buildings generally need operational evidence before a formal rating can be undertaken.
Not always. Depending on the assessment pathway, the rating may relate to a base building, a tenancy, a whole building or another defined operational scope.
No. A NABERS rating reflects measured performance during the assessment period. Planning future performance or target ratings belongs within a separate NABERS Strategic process.
Commercial projects often involve several environmental assessment frameworks throughout their lifecycle. Selecting the assessment that matches the project's objective saves time, reduces unnecessary work and ensures that the outcome answers the question being asked. A compliance pathway, an operational rating and a sustainability certification each have a different role within the broader building performance ecosystem.
If your objective is to understand which assessment is appropriate for your building, reviewing the available pathways before commencing an assessment is usually the most effective starting point.
Related Reading
Explore the differences between Australia's most common commercial building assessment pathways.
NABERS vs Section J → Green Star vs NABERS → NABERS vs BEEC →Next: Discover when a NABERS rating may be relevant for building owners, investors, facility managers, developers, tenants and government organisations.
When NABERS Is Used
A NABERS rating may be relevant when an organisation needs an independent, evidence-based measure of how an eligible commercial building or tenancy has performed during operation.
NABERS may be requested for several reasons, including portfolio benchmarking, procurement requirements, leasing and disclosure processes, internal reporting, government policy, sustainability commitments or the need to understand current operational performance. The appropriate rating depends on the asset type, available rating pathway and the part of the building being assessed.
The first question is therefore not simply whether a building needs “a NABERS rating”, but what the organisation is trying to establish, who will rely on the result and which operational boundary is relevant.
Owners and Investors
Owners and investors may use NABERS to understand the measured operational position of an eligible asset, compare performance over time or support portfolio reporting.
Building Managers
Facility and building managers may use a rating to establish a documented baseline of operational performance for the applicable assessment period.
Tenants and Occupiers
Where an eligible tenancy pathway applies, occupiers may use NABERS to understand the measured operational performance of the space they control.
Government and Procurement
Government agencies, institutions and procurement teams may specify NABERS ratings within policy, leasing or tender requirements where an operational benchmark is required.
Commercial Transactions
A NABERS Energy rating may form part of a wider commercial office disclosure context. Where applicable, separate documentation such as a Building Energy Efficiency Certificate or Tenancy Lighting Assessment may also be required.
Sustainability Reporting
Organisations may use NABERS as one source of measured operational information within broader environmental, portfolio or corporate reporting.
01
Clarify whether the objective is benchmarking, disclosure, reporting, procurement or another operational performance requirement.
02
Determine whether the assessment concerns the base building, a tenancy, the whole building or another available scope.
03
Confirm that the building has suitable consumption records, metering information and supporting data for the required assessment period.
Where the building type, rating boundary or available evidence is uncertain, an initial scope and data review may be needed before a formal assessment can proceed. This is particularly useful where meters have changed, records are incomplete or landlord and tenant consumption have not been clearly separated.
Where the objective is not to establish the current rating, but to understand future rating potential, identify operational priorities or plan a pathway towards a target score, the appropriate starting point may instead be NABERS Strategic.
Related Reading
Explore how operational ratings may interact with commercial leasing, disclosure and building performance obligations.
NABERS vs BEEC → NABERS and Tenancy Lighting Assessments →Next: review the key factors that influence rating readiness, including operational history, metering, building changes and the completeness of available evidence.
Assessment Readiness
Before a formal NABERS assessment can begin, there needs to be sufficient operational information to support the selected rating pathway. Readiness is determined by the quality and completeness of available evidence rather than the age or appearance of the building.
A highly efficient building may not yet be ready for a NABERS assessment if the required operational records are unavailable or incomplete. Likewise, an older building with well-maintained metering, documented operational history and clearly defined rating boundaries may be well prepared for assessment.
For this reason, readiness should be viewed as a question of evidence. The objective is not to prove that a building performs well before assessment begins, but to ensure there is enough reliable operational information to undertake the assessment using the applicable NABERS methodology.
✓ Rating Boundary
The assessment boundary should be understood before evidence is reviewed so that operational information can be matched to the correct building, tenancy or applicable rating scope.
✓ Operational History
Utility information and supporting records should cover the operational period required by the relevant NABERS methodology for the selected rating.
✓ Metering
Meters should be identifiable and capable of demonstrating which services or areas they represent within the selected assessment boundary.
✓ Supporting Documents
Building information, floor areas, tenancy boundaries and operational records should be consistent and capable of supporting the assessment.
Major refurbishments, changes to building services or altered tenancy arrangements may require additional review to determine how operational information should be interpreted.
Utility account changes, replacement meters or revised submetering arrangements may need clarification before operational data can be assessed.
Significant changes in occupancy or building operation may influence which operational period and supporting evidence are appropriate for the assessment.
Preparing a building for assessment focuses on confirming evidence, operational records and the correct rating scope. Improving a future rating is a separate activity involving operational analysis, performance opportunities and long-term planning. Keeping these activities separate helps maintain the distinction between a formal operational assessment and strategic performance advice.
If the objective is to understand how an existing building may progress towards a future performance target rather than establish its current operational position, explore our NABERS Strategic Knowledge Hub.
Related Reading
Learn how early preparation can simplify the assessment process and reduce unnecessary delays.
How Long Does a NABERS Assessment Take? → Common Assessment Mistakes →
Frequently Asked Questions
NABERS is Australia's national rating system for measuring the operational environmental performance of eligible buildings and tenancies.
It uses measured building information and the applicable NABERS methodology to provide a rating for a defined operational period and assessment scope.
Depending on the available rating pathway, NABERS may measure operational energy performance, water use, waste outcomes or indoor environmental quality. Each rating category has its own scope, evidence requirements and benchmarking methodology.
Yes. NABERS ratings are based on measured operational information from a functioning building or tenancy. They reflect performance during the applicable rating period rather than predicted design performance.
NABERS rating pathways are available for a range of commercial and institutional asset types. Eligibility depends on the building type, the performance category being assessed, the proposed rating scope and the current NABERS rules.
A newly completed building may be rated once an applicable NABERS pathway is available and sufficient operational evidence has been collected. Because NABERS measures actual performance, architectural drawings or design modelling alone are not sufficient for a formal operational rating.
The principal NABERS performance categories include Energy, Water, Waste and Indoor Environment. Not every category is available for every building type, so the applicable pathway should be confirmed before an assessment begins.
For applicable office ratings, a base building scope generally relates to landlord-controlled building services, while a tenancy scope relates to the occupied space and operational information controlled by an individual tenant.
A whole building rating combines the applicable base building and tenant-occupied areas within one defined operational scope. These scope options do not automatically apply to every asset or rating category.
Required information varies by rating type but may include utility or consumption records, meter details, floor area information, operating hours, occupancy data, rating boundary documentation and other supporting operational evidence. The information must relate clearly to the selected assessment scope and rating period.
No. A NABERS rating measures operational performance and does not replace an NCC compliance assessment. NCC compliance and NABERS answer different questions, follow different methodologies and require different forms of evidence.
No. A Building Energy Efficiency Certificate belongs to Australia's Commercial Building Disclosure framework. A NABERS Energy rating may form part of the information used within an applicable BEEC process, but the rating and certificate are not the same document or assessment.
A NABERS rating may be relevant for operational benchmarking, commercial disclosure, leasing, procurement, portfolio reporting, government policy requirements or sustainability reporting. The appropriate rating depends on the asset, the purpose of the assessment and the operational boundary being considered.
A certified NABERS rating is valid for twelve months. This annual rating model helps ensure that the published result continues to represent relatively current operational performance.
Yes. A NABERS rating establishes an evidence-based measure of performance during the applicable rating period. It can provide a documented starting point for owners, managers and tenants who need to understand the current operational position of an eligible asset.
No. A NABERS rating reflects measured performance during a completed operational period. It does not guarantee future consumption, operating costs or future rating outcomes. Future target setting, operational analysis and improvement planning belong within a separate NABERS Strategic process.
Yes. Organisations may use a current NABERS rating as one source of measured operational information within broader sustainability, environmental or property portfolio reporting. The rating should be represented accurately within its certified category, scope and validity period.
Related Knowledge
NABERS measures the operational performance of eligible commercial buildings and tenancies using measured building data. The following Knowledge Hubs explain how operational ratings relate to commercial compliance, disclosure, embodied carbon and broader sustainability frameworks while maintaining the distinct purpose of each assessment.
Design Compliance
Learn how Section J demonstrates compliance with the National Construction Code during design, before construction and building operation commence.
Explore Section J →
Performance Solution
Understand how comparative energy modelling can satisfy NCC compliance requirements while remaining separate from measured operational building performance.
Explore JV3 Assessment →
Commercial Disclosure
Explore how NABERS Energy ratings interact with Building Energy Efficiency Certificates, tenancy lighting assessments and Australia's Commercial Building Disclosure framework.
Explore TLA & BEEC →
Operational Strategy
Discover how measured operational performance can inform future planning, performance priorities and long-term building improvement strategies without replacing a formal NABERS assessment.
Explore NABERS Strategic →
Embodied Carbon
Understand the difference between operational emissions measured during building use and embodied emissions associated with materials, manufacturing and construction.
Explore NABERS Embodied Carbon →
Sustainability Framework
See how Green Star evaluates broader sustainability outcomes while NABERS focuses specifically on measured operational building performance.
Explore Green Star →
Project Review
If you are unsure whether a NABERS assessment is appropriate for your building, send through your available building information for an initial review. Certified Energy can help determine which NABERS rating pathway may apply, the likely assessment scope and the operational information typically required to proceed.
Early clarification can help confirm rating readiness, identify the appropriate assessment boundary and explain how NABERS relates to commercial disclosure, Section J, JV3 and other commercial building performance frameworks. If your objective is to improve future operational performance rather than establish a current rating, explore our NABERS Strategic Knowledge Hub.
Last reviewed: July 2026. This page is maintained by Certified Energy as part of its Commercial Performance Knowledge Hub.
