the 2022 ncc and what has changed (for ESD)

The National Construction Code is a huge document, spanning three volumes and hundreds of pages.

This summary isn't a breakdown of what's changed in the 2022 version across the whole Code - that would be a gigantic undertaking. What I'll detail below is the changes that impact ESD and livability, and leave the remainder of the Code to someone else (hopefully a number of people).

The Key Energy Efficiency Changes
7-Star NatHERS Minimum: The NCC 2022 raises the bar for thermal comfort by increasing the minimum rating from 6 stars to 7 stars under the Nationwide House Energy Rating Scheme (NatHERS). This means homes will need to be better insulated and designed to maintain comfortable indoor temperatures with less reliance on artificial heating and cooling.

What this means for you:

• New Builds: Expect designs that are more climate-responsive, with features like optimized glazing, better insulation, and thoughtful window placement. While this may slightly increase upfront costs, it can lead to lower energy bills and a more comfortable living environment year-round.
• Renovations: Adding extensions or retrofitting spaces? These parts may need to meet the 7-star standard too, ensuring any updates are efficient and compliant.
  

Whole-of-Home (WoH) Energy Budget: Beyond thermal performance, the code introduces a Whole-of-Home energy framework. This considers the energy efficiency of fixed appliances like heating, cooling, hot water systems, and lighting. Renewable energy options like solar power can help balance your energy budget but aren't strictly required.

What this means for you:

• New Homes: Builders may integrate systems like heat pump hot water or energy-efficient HVAC from the start.
• Renovations: Retrofitting outdated systems could be a smart move to align with the code and future-proof your home.

What's the Takeaway Here?
The NCC 2022 changes reflect a broader shift toward sustainability and comfort. While the updates may require a bit more planning, they ultimately lead to homes that are future-focused, resilient, and just better to live in. 

For New Homes:
The changes encourage a more holistic approach to energy efficiency, making your home not only greener but also more comfortable to live in. While initial costs might rise slightly, government incentives for renewable energy systems or sustainable design could help offset these expenses. Plus, you'll likely enjoy long-term savings on energy bills.

For Renovations:
The updates encourage thoughtful integration of new and existing structures. If you're extending or significantly altering your home, getting your energy assessor on board early early can help ensure your plans meet compliance while maintaining your vision.

Where to From Here?
If you’re unsure about how these changes might impact your project, consider reaching out to an accredited energy assessor (ideally us) earlier than you normally would. We can ensure your plans align with the code while helping you make smart, cost-effective choices.