7-Star Energy Efficiency Standards

In August 2022, the Victorian Government announced an increase in minimum energy efficiency standards for new homes from 6 to 7 stars under changes to National Construction Code (NCC) 2022. With millions of homes planned for the next 30 years, the NCC requirements will help future-proof our nation and keep pace with environmental leaders in Europe.

The minimum standards for thermal comfort in new homes will increase from 6 to 7 stars for energy efficiency (NatHERS ratings) under changes to the NCC, effective from May 1, 2024.

What Are The Benefits of a 7-Star Energy-Efficient Homes?

Choosing a 7-Star compliant JG King Home allows customers to future-proof their homes.

Building a more energy-efficient home affords you the following benefits:

  • Lower energy costs: Higher star ratings means reduced energy costs and lower energy bills. This means saving money on energy bills from day one.
  • Greater comfort: A higher NatHERS rating improves thermal performance, resulting in a more comfortable living environment throughout the year.
  • Increased resilience to temperature conditions: Victoria experiences both cold and warm months throughout the year. A 7-Star home ensures a more comfortable temperature in extreme heat or cold compared to a 6-Star home.
  • Reduced emissions: Energy-efficient homes contribute to achieving net-zero emissions by 2050. The long-term savings on energy costs saving homeowners money, and help reduce greenhouse gas emissions.

How are JG King Homes Achieving 7-Star Energy Efficiency Compliance?

JG King Homes employs the following unique combination to achieve compliance:

  1. European-styled (uPVC) double-glazed windows and doors.
  2. Double Glazed Windows and Low-E glass coating helping reduce energy consumption and lower energy bills.
  3. Assistance in house sitting (home orientation) to maximise passive heating in winter and shading in summer.
  4. Increased insulation.

JG King Homes is in a unique position where we are committed to ensuring all home orientations, in all geographical locations throughout Victoria (except Mildura) we will be able to achieve compliance with all our standard house plans.

What Are European Styled (uPVC) Windows And Doors, And What Are Their Benefits?

Unplasticised polyvinyl chloride (uPVC) is a strong, durable material used for window and door frames. The majority of windows in Europe (80%) and the USA are made from uPVC.

With the introduction of JG King Homes' European-style double-glazed windows and doors along with double glazing and Low-E coating as standard, JG King Homes deliver the following benefits:

  • Saving on energy bills from day one.
  • Energy efficiency: Significant reduction in energy transfer, with windows accounting for up to 40% of a home's heat loss or gain when comparing low quality to high quality windows.
  • Durability: Long-lasting, even in harsh conditions.
  • Security: Multi-point locks and reinforced frames. Deterrent against potential intruders.
  • Customisation: A variety of styles, colours, and finishes.
  • Condensation control: Preventing moisture-related issues.
  • Environmental benefits: Reducing energy consumption and being recyclable
  • High acoustic insulation: Significantly diminishing outside noise for a quieter home.
  • Fire safety: Fire-resistant and Bal-40 approved.
  • Low maintenance: Quick and easy to clean.
  • Thermal performance: Maintaining a comfortable indoor environment throughout the year.
  • UV Protection: Blocking harmful UV rays to safeguard interiors.

At Project Windows and Doors (PW&D) (Part of the JG King Building Group), innovation is ingrained in our DNA. Our latest breakthrough in windows and doors introduces the exceptional uPVC frames with Aluplast technology as standard inclusion in all JG King Homes.

Are There Differences Between uPVC and Other Window Types?

uPVC has many advantages over timber and aluminium, including being energy-efficient, low maintenance, noise-stopping, colour-fast, UV resistant and more secure. See table below:


uPVC (European Styled)



Energy Efficient


Low Maintenance


Stops Noise





UV Resistant


Bushfire Resistant


Stops Condensation




What to Ask A Home Builder When Considering a 7-Star Compliant Home?

When considering a 7-Star energy-efficient home, ask your home builder:

  • If they provide you the option to buy a preferred home design as a 7-Star compliant home before May 1st 2024.
  • If they can deliver any home and land combination to achieve 7-Star energy-efficient rating, considering different block orientations.
  • Whether windows sizes and locations have been compromised adjusted for energy compliance.

At JG King Homes, no compromises have been taken to deliver a 7-Star energy-efficient home; home designs remain unchanged.

Terms and Conditions

1. General

1.1 By accessing the website at http://jgking.com.au and any of the pages forming part of that website (Website), you agree to be bound by these terms and conditions. If you do not agree with any of these terms, you are prohibited from using or accessing this site.

1.2 As a condition of accessing, browsing, using or relying on any part of the Website, you must read and accept these terms and conditions of use. By accessing, browsing, using or relying on the Website, you acknowledge you have read, understood and agreed to comply with these terms and conditions of use.

1.3 The Website is operated by JG King Pty Ltd ABN 21 006 627 210 Registered Building Practitioner CDB-U 49366 (VIC) and JG King (NSW) Pty Ltd 385938C (NSW).

1.4 Any offer made is made by JG King Pty Ltd and not BlueScope Steel Limited. To the maximum extent permitted by law, BlueScope Steel Limited is not responsible for the administration of, nor liable for any damage or loss arising from, any offer made.

2. 7 Star Homes

JG King Homes can deliver all STANDARD house designs to achieve 7 Star Energy Efficiency on any orientation.

If changes are made from STANDARD house designs JG King Homes cannot guarantee achievement of 7 Star compliance.

JG King Homes will deliver windows that are the same size and same location in all their home designs. To achieve 7 Star compliance all windows will be made from European Styled (uPVC) Double Glazing. The glazing will come with a Low E Coating.

JG King Homes can deliver homes throughout Victoria as depicted in JG King Homes build zone regions map.

As standard all JG King Homes will deliver European Styled (uPVC) Double Glazed windows as standard. The glazing will come with a Low E Coating. JG King Homes do not supply uPVC windows to homes build in the Mildura region.

When JG King Homes refers to windows and doors it includes all windows, rear sliding doors, and sliding laundry doors. External swing doors and side lights will remain Timber with Timber frames.

All STANDARD JG King Homes House Designs will achieve 7 Star Energy Efficiency in any orientation. For this purpose STANDARD designs means one of the standard designs on this website, not incorporating any of the available floorplan choices or owner requested modifications.

To achieve 7 Star compliance all windows will be made from European Styled (uPVC) with double glazing. The glazing will come with a Low E Coating.

3. Amendments

3.1 At any time, JG King may change, add or remove any part of these terms and conditions of use or any features of the Website.

3.2 Your continued use of the Website after such change, addition or removal constitutes an agreement by you to abide by, and be bound by, these terms and conditions of use, including as regards any changes JG King may have made.

4. Intellectual property

4.1 JG King owns, or is otherwise licensed to use, all intellectual property in the Website. Subject to these terms and conditions of use, JG King grants you a non-exclusive, revocable and non-transferable licence to view, download and use information directly accessible through the Website for personal and non-commercial use.

4.2 Nothing in these terms or on the Website should be construed as granting any right, title or interest in, to or in relation to any of JG King’s content, images, trade marks, trade secrets, know-how or other intellectual property rights.

4.3 Any and all of JG King’s intellectual property rights (including in the Website, its content, data and images) is its sole and exclusive property.

4.4 You agree that, subject to your use of the Website in accordance with the limited licence granted to you by these terms, you will not infringe JG King intellectual property in the Website and will not:

(a) reproduce, modify, transmit, copy, adapt, sell, publish, frame, distribute or communicate any part of the Website; or

(b) use it in a way which infringes our intellectual property or other property rights.

5. Disclaimer

5.1 Except as provided by law, the Website, and any documents, images or information contained within it are provided ‘as is’ and without any warranty or condition, express or implied. JG King does not not warrant that any of this material is accurate, up-to-date, suitable for your purpose(s) or without errors, omissions or viruses, nor does it guarantee continuous, uninterrupted or secure access to the Website.

5.2 You acknowledge that access and use of the Website (including the software operating in connection with the Website) may be interfered with by numerous factors outside of JG King’s control, including, but not limited to, persons with malicious intent.

5.3 JG King does not warrant the accuracy of any advice, opinion, statement, representation or other information displayed on or accessible through the.

6. Use of information

6.1 If you upload, or otherwise provide, any information or content (Content) in the course of accessing or using the Website, you confirm that such Content will be available to JG King to use in any manner it thinks fit, subject to applicable provisions of any Australian legislation, including, without limitation, privacy legislation.

6.2 You agree to grant JG King a worldwide, perpetual, irrevocable, royalty-free, sub-licensable right to exercise and use the intellectual property you have in any Content, in all media (whether now known or not yet known). You also agree to waive any moral or similar rights you may have or acquire in the future in that Content in our favour.

7. Liability

7.1 You agree that JG King is not liable to you or anyone else for any loss or damages (including indirect, special, consequential loss, loss of data, loss of profits, revenue, data, goodwill, opportunity or anticipated savings) arising out of, or in connection with, the use or access of the Website, the use by JG King of the Content, or any loss or damage which may arise should you be unable to access the Website for whatever reason and however arising and whether caused by breach of statute, breach of contract, negligence or other tort or otherwise.

7.2 You indemnify JG King from and against any action, liability, claim, loss, damage, proceeding and expense (including legal costs) suffered or incurred by it, arising from, or which is directly or indirectly related to:

(a) your breach of any provision of these terms and conditions of use;

(b) any breach or inaccuracy in any of your representations or warranties; and

(c) your use of the Website.

8. Third party websites

JG King has not reviewed all of the websites linked to the Website and makes no representation as to the contents including the accuracy of information contained within any such linked site. The inclusion of any link does not imply endorsement by JG King Homes of the site. Use of any such linked website is at the user's own risk.

9. Breach and termination

9.1 If, in JG King’s opinion, you breach any provision of these terms and conditions of use, it may immediately temporarily suspend or permanently prevent your access to all or any parts of the Website.

9.2 In any event, JG King may terminate these terms and conditions of use (and your right to use the Website) at any time and for any reason without prior notice to you.

10. Severability

If any provision of these terms and conditions of use is found by any court or body of competent jurisdiction to be wholly or partially illegal, invalid, void, voidable, unenforceable or unreasonable, then it shall be severed to the extent of the illegality, invalidity, voidness, voidability, unenforceability or unreasonableness, but the remaining provisions shall be unaffected and continue in full force and effect.

11. Waiver

Failure or delay by JG King in enforcing or partially enforcing any provision in these terms and conditions will not be construed as a waiver of any of its rights.

12. Governing law and jurisdiction

12.1 These terms and conditions, and the agreement of which they form part, is to be governed by the laws and exclusive jurisdiction of the state of Victoria, Australia.

12.2 You submit irrevocably and unconditionally to the jurisdiction of the courts of the state of Victoria, Australia in all disputes related or connected to these terms and conditions of use.

13. 50-year Structural Warranty

The 50-year structural warranty is provided by BlueScope Steel Limited and is subject to application and eligibility criteria. For full terms and conditions and to determine the eligibility of your building for the warranty visit www.bluescopesteel.com.au/warranties or call BlueScope on 1800 022 999. COLORBOND® and BlueScope are registered trademarks of BlueScope Steel Limited.

Additional Terms & Conditions can be found below.

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JG King Pty Ltd ABN 21 006 627 210 Registered Building Practitioner CDB-U 49366 (VIC) and JG King (NSW) Pty Ltd 385938C (NSW)