What is the National Construction Code (NCC)?
Supported locally by the Victorian Building Authority the NCC lays down the rules for designing and building structures in Australia, covering everything from plumbing to drainage. Acting as a construction industry governing body, it sets the basic standards to make sure buildings are safe, healthy, comfortable, accessible, and sustainable.
Victoria welcomed a new age of modern home design on May 1, 2024, when the NCC revisions came into force. Here’s a closer look at what these changes mean for Australians who choose to build a new home.
Greener and more cost-effective living
The NCC update brings a focus on energy efficiency, aiming to reduce the environmental impact of new homes while homeowners enjoy financial saving on their energy bills over time. The nationwide house energy rating scheme (natHERS), requires new homes to achieve a 7-Star energy rating and use up to 25% less energy to run than the previous 6-Star standard.
Whole of Home (WOH) energy budget
An extension of the thermally efficient 7-Star energy rating the “Whole of Home” energy use budget has been introduced to assess new home appliances, solar and batteries. A performance rating out of 100 considers the estimated cost of energy use, the impact on the energy network and the carbon emissions produced.
Solar-compatible electric appliances
The compliance level in WOH may be achieved by balancing energy-consuming appliances with renewable energy features. Homes will be equipped with electric appliances, such as hot water services, that can run off rooftop solar panels. A positive benefit to homeowners with an expected reduction in their electricity bills.
Enhanced insulation
The new building code mandates more insulation in homes, which is key to better thermal performance. Homes will stay warmer in winter and cooler in summer, with less reliance on appliances.
Thermally efficient windows
Windows play a crucial role in a home’s energy efficiency. The NCC now requires the use of more thermally efficient windows, including double glazing and thermally broken double-glazed windows, all aimed at preventing heat transfer and achieving the required new home energy rating.
Condensation mitigation
As homes become more airtight to improve energy efficiency, managing condensation becomes critical to prevent mould and dampness. The updated code includes detail changes to improve ventilation, particularly in the roof space, ensuring that moist air is effectively removed from the home.
Livable homes for everyone
In addition to energy efficiency the NCC 2022 update aims to ensure that homes are accessible to everyone, including those with mobility challenges. More comprehensive than any other changes in the past, these new standards cover the design and layout of the home internally:
Ground floor toilet
One of the standout features is the requirement for a toilet on the ground floor. This toilet must have a clear space in front of it, free from obstruction by the toilet or bathroom door swing. This ensures that individuals using wheelchairs or other mobility aids can easily access the facilities.
Accessible shower
At least one shower in the home must have a flat entrance, eliminating the need for stepping in or out. This feature is crucial for those with limited mobility, reducing the risk of slips and falls.
Future-proofing with grab rails
New homes will now include additional timber in the wall frames to support the future installation of grab rails. This foresight allows homeowners to easily add these safety features if and when they become necessary, ensuring that homes can adapt to changing needs over time.
Wider doorways and level thresholds
Some doorways will be widened, and level thresholds will be introduced to facilitate ease of access throughout the home.
This years’ NCC amendments encourage creative design and contribute to the global trend towards sustainable living. By supporting greener building practices, the changes help to reduce the environmental impact of construction and move us closer to a more sustainable future. With enhanced accessibility and livability, more areas within new homes become usable and families may stay in their homes longer without needing big changes as they get older. It’s all about making life easier and more comfortable for everyone!
For more information please visit the following websites:
National Construction Code https://ncc.abcb.gov.au
Victorian Building Association https://www.vba.vic.gov.au
