Green star is a non for profit organisation that sets an energy rating scorecard that assigns different scores to embedding sustainability in built environment. It has following major ratings tools:

  • Design & As Built rating tool,
  • Performance rating tool, and
  • Communities rating tool.

What is involved in green star – Design & As Built Scorecard

Management – This section gets 14 points in total

Green Star Accredited Professional

To recognise the appointment and active involvement of a Green Star Accredited Professional in order to ensure that the rating tool is applied effectively and as intended.

1.1 Accredited Professional                            1

Commissioning and Tuning

To encourage and recognise commissioning, handover and tuning initiatives that ensure all building services operate to their full potential.

2.0                   Environmental Performance Targets                                        –

2.1                   Services and Maintainability Review               1

2.2                   Building Commissioning                                 1

2.3                   Building Systems Tuning                                 1

2.4                   Independent Commissioning Agent               1

Adaptation and Resilience

To encourage and recognise projects that are resilient to the impacts of a changing climate and natural disasters.

3.1                   Implementation of a Climate Adaptation Plan                        2

Building Information

To recognise the development and provision of building information that facilitates understanding of a building’s systems, operation and maintenance requirements, and environmental targets to enable the optimised performance.
4.1                   Building Information                                        1

Commitment to Performance

To recognise practices that encourage building owners, building occupants and facilities management teams to set targets and monitor environmental performance in a collaborative way.

5.1                   Environmental Building Performance                                       1

5.2                   End of Life Waste Performance                       A. Contractual Agreements     1

Metering and Monitoring

To recognise the implementation of effective energy and water metering and monitoring systems.

6.0                   Metering                                  –

6.1                   Monitoring Systems                                         1

Responsible Construction Practices

To reward projects that use best practice formal environmental management procedures during construction.

7.0                   Environmental Management Plan                                            –

7.1                   Environmental Management System               1

7.2                   High Quality Staff Support                                1

Operational Waste

Performance Pathway

8A                    Performance Pathway: Specialist Plan            1

8B                    Prescriptive Pathway: Facilities                                               0

Total                                                                                        14


Indoor Environment Quality – This section gets 17 points in total

Indoor Air Quality

To recognise projects that provide high air quality to occupants.

9.1                   Ventilation System Attributes  1

9.2                   Provision of Outdoor Air           2

  • Comparison to Industry Standards
  • Performance Based Approach
  • Natural Ventilation

9.3                   Exhaust or Elimination of Pollutants                1

  • Removing the Source of Pollutants
  • Exhausting the Pollutants Directly to the Outside

Acoustic Comfort

To reward projects that provide appropriate and comfortable acoustic conditions for occupants.

10.1                 Internal Noise Levels                                      1

10.2                 Reverberation                           1

10.3                 Acoustic Separation                1

  • Sound Reduction

Lighting Comfort

To encourage and recognise well-lit spaces that provide a high degree of comfort to users.

11.0                 Minimum Lighting Comfort                              –

11.1                 General Illuminance and Glare Reduction

11.1.1              General Illuminance                1

  • Non Residential Spaces
  • Residential Spaces

11.1.2 Glare Reduction

  • Prescriptive Method
  • Prescriptive Method 2
  1. Performance Method

11.2                 Surface Illuminance                1

  • Prescriptive Method
  • Performance Method
  • Residential Spaces (Prescriptive Method)

11.3                 Localised Lighting Control                              1

Visual Comfort

To recognise the delivery of well-lit spaces that provide high levels of visual comfort to building occupants.

12.0                 Glare Reduction

  • Fixed Shading Devices –
  • Blinds or Screens
  • Daylight Glare Model

12.1                 Daylight           2

  • Prescriptive Methodology
  • Compliance Using Daylight Factor
  • Compliance Using Daylight Autonomy

12.2                 Views                                       1

Indoor Pollutants

To recognise projects that safeguard occupant health through the reduction in internal air pollutant levels.

13.1 Paints, Adhesives, Sealants and Carpets

13.1.1 Paints, Adhesives and Sealants           1

  • Product Certification
  • Laboratory Testing
  • No Paints, Adhesives or Sealants

13.1.2 Carpets

  • Product Certification
  • Laboratory Testing
  • No Carpets

13.2                 Engineered Wood Products     1

  • Product Certification
  • Laboratory Testing

Thermal Comfort

To encourage and recognise projects that achieve high levels of thermal comfort.

14.1                 Thermal Comfort

  1. Naturally Ventilated Spaces 1
  2. Mechanically Ventilated Spaces
  3. Residential Spaces

14.2                 Advanced Thermal Comfort     1

  • Naturally Ventilated Spaces
  • Mechanically Ventilated Spaces
  • Residential Spaces

Total                                                                                                                17


Energy                                                                                                            22

Greenhouse Gas Emissions

A Prescriptive Pathway

15A.0               Conditional Requirement: Prescriptive Pathway                                              –

15A.1               Building Envelope                                            1

15A.2               Wall-Glazing Construction and Retail Display Glazing                                    1

15A.3               Lighting                                   1

15A.4               Ventilation and Air Conditioning                                             1

15A.5               Domestic Hot Water                                        1

15A.6               Transition Plan                                                1

15A.7               Fuel Switching                         1

15A.8               On-Site Storage                                                1

15A.9               Vertical Transportation                                    1

15A.10             Off-Site Renewables                                        5

15B.0               Conditional Requirement: NatHERS Pathway                           –

15B.1               Thermal and Energy Performance                                            0

15B.2 Building Services and Appliances

15B.2.1 Lighting                                              0

15B.2.2 Ventilation and Air Conditioning            0

  • Mechanically Conditioned Spaces
  • Spaces With Mechanical Heating Only
  • Naturally Ventilated Spaces

15B.2.3 Domestic Hot Water                           0

15B.2.4 Appliances & Equipment                                            0

15B.2.5 Fuel Switching                                    0

15B.2.6 On-Site Storage                                   0

15B.2.7 Vertical Transportation                                               0

15B.2.8 Passive Laundry Facilities                                         0

15B.2.9 Unoccupied Areas                             0

15B.2.10 Off-Site Renewables                         0

15C.0               Conditional Requirement: BASIX Pathway                               –

15C.1               BASIX Greenhouse Gas Reductions                                        0

15C.2               Off-Site Renewables                                        0

15D.0               Conditional Requirement: NABERS Pathway                            –

15D.1               NABERS Energy Greenhouse Gas Emissions Reduction                                 0

15D.2               Off-Site Renewables                                        0

15D.3 Additional Prescriptive Measures

15D.3.1 Transition Plan                                   0

15D.3.2 Fuel Switching                                   0

15D.3.3 On-Site Storage                                  0

15E.0               Conditional Requirement: Reference Building Pathway                                   –

15E.1               GHG Emissions Reduction: Building Fabric                            0

15E.2               GHG Emissions Reduction                              0

15E.3               Off-Site Renewables                                        0

15E.4               District Services                                              0

15E.5 Additional Prescriptive Measures

15E.5.1 Transition Plan                                   0

15E.5.2 Fuel Switching                                    0

15E.5.3 On-Site Storage                                   0

Peak Electricity Demand Reduction

Prescriptive Pathway

16A                  Prescriptive Pathway: On-Site Energy Generation                                            1

16B                  Modelled Performance Pathway: Reference Building                                      0

Total                                                                                                                11


Transport                                                                                                      10

Sustainable Transport

Performance Pathway

17A                  Performance Pathway                                      10

17B.1               Access by Public Transport                            0

17B.2               Reduced Car Parking Provision                                               0

17B.3               Low Emission Vehicle Infrastructure

  • Parking for Fuel-Efficient Vehicles 0

17B.4               Active Transport Facilities                              0

17B.5               Walkable Neighbourhoods      A. Proximity to Amenities        0

Total                                                                                                                10


Water                                                                                                              12

Potable Water

Performance Pathway

18A                  Potable Water – Performance Pathway                                     12

18B.1               Sanitary Fixture Efficiency                                0

18B.2               Rainwater Reuse                                              0

18B.3               Heat Rejection                         0

18B.4               Landscape Irrigation                                       0

18B.5               Fire Protection System Test Water                                           0

Total                                                                                                                12


Materials                                                                                                        14

Life Cycle Impacts

Performance Pathway – Life Cycle Assessment

19A.1               Comparative Life Cycle Assessment                                      6

19A.2               Additional Reporting                4

  • Additional Life Cycle Impact Reporting
  • Material Selection Improvement
  • Construction Process Improvement
  • LCA Design Review

19B.1 Concrete                        19B.1.1 Portland Cement Reduction                                        0

19B.1.2 Water Reduction                                 0

19B.1.3 Aggregates Reduction                        A. Course Aggregate Reduction                      0

19B.2 Steel      A. Reduced Mass of Steel Framing

  • High Strength Steel 0

19B.3               Building Reuse                        19B.3.1 Façade Reuse            0

19B.3.2 Structure Reuse          0

19B.4               Structural Timber

19B.4.0 Responsible Sourcing                        –

19B.4.1 Reduced Embodied Impacts              0

Responsible Building Materials

To reward projects that include materials that are responsibly sourced or have a sustainable supply chain.

20.1                 Structural and Reinforcing Steel                      20.1.0 Responsible Steel Maker                     –

  1. Responsible Steel Fabricator 1

20.2                 Timber             1

  • Certified Timber
  • Reused Timber

20.3                 Permanent Formwork, Pipes, Flooring, Blinds and Cables

  • Products That Do Not Contain PVC 1

Sustainable Products

To encourage sustainability and transparency in product specification.

21.1                 Product Transparency and Sustainability        3

  • Reused Products
  • Recycled Content Products
  • Environmental Product Declarations (EPDs)
  • Third Party Certification
  • Stewardship Programs

Construction and Demolition Waste

  1. Percentage Benchmark

22.0                 Reporting Accuracy

  1. Compliance Verification Summary –

22A                  Fixed Benchmark                                             0

22B                  Percentage Benchmark                                   1

Total                                                                                                                14


Land Use & Ecology                                                                                                             6

Ecological Value

To reward projects that improve the ecological value of their site.

23.0                 Endangered, Threatened or Vulnerable Species                      A. EPBC           –

23.1                 Ecological Value                                             3

Sustainable Sites

To reward projects that choose to develop sites that have limited ecological value, re-use previously developed land and remediate contaminate land.

24.0                 Conditional Requirement                                 –

24.1                 Reuse of Land A. Previously Developed Land 1

24.2                 Contamination and Hazardous Materials

  1. Site Contamination 1
  2. Hazardous Materials

Heat Island Effect

To encourage and recognise projects that reduce the contribution of the project site to the heat island effect.

25.1                 Heat Island Effect Reduction                           1

Total                                                                                                                6


Emissions                                                                                                      5


To reward projects that minimise peak stormwater flows and reduce pollutants entering public sewer infrastructure.

26.1                 Stormwater Peak Discharge                            1

26.2                 Stormwater Pollution Targets                           1

Light Pollution

To reward projects that minimise light pollution.

27.0                 Light Pollution to Neighbouring Bodies                                   –

27.1                 Light Pollution to Night Sky

  • Control of Upward Light Output Ratio (ULOR) 1

Microbial Control

To recognise projects that implement systems to minimise the impacts associated with harmful microbes in building systems.

28                    Legionella Impacts from Cooling Systems

  • Natural Ventilation 1

Refrigerant Impacts

To encourage operational practices that minimise the environmental impacts of refrigeration equipment.

29.1                 Refrigerants Impacts

  1. Calculating TSDEI 1

Total                                                                                                                5


Innovation                                                                                                      10

Innovative Technology or Process

The project meets the aims of an existing credit using a technology or process that is considered innovative in Australia or the world.

30A                  Innovative Technology or Process                                           10

Market Transformation

The project has undertaken a sustainability initiative that substantially contributes to the broader market transformation towards sustainable development in Australia or in the world.

30B                  Market Transformation

Improving on Green Star Benchmarks

The project has achieved full points in a Green Star credit and demonstrates a substantial improvement on the benchmark required to achieve full points.

30C                  Improving on Green Star Benchmarks

Innovation Challenge

Where the project addresses an sustainability issue not included within any of the Credits in the existing Green Star rating tools.

30D                  Innovation Challenge

Global Sustainability

Project teams may adopt an approved credit from a Global Green Building Rating tool that addresses a sustainability issue that is currently outside the scope of this Green Star rating tools.

30E                  Global Sustainability

Total                                                                                                                10