Australia’s National Construction Code (NCC) is set for its most significant update in years — and if you’re in construction, this one’s not just about red tape. It’s about the future of how we build.

From energy efficiency to fire safety, water damage to women’s facilities — the draft NCC 2025 proposes a wide sweep of reforms aimed at improving building performance, safety, and usability.

Here’s what you need to know.

Energy Efficiency Takes Centre Stage

The biggest headline? Energy efficiency — especially for commercial buildings.

The draft aims to make new commercial developments net-zero ready. That’s not just a buzzword. It means the code will:

• Tighten thermal performance requirements
  
• Mandate on-site energy generation (like solar)
  
• Enable full electrification, making it easier to transition from gas to electric appliances
  

These aren’t just green gestures — they’re part of a broader shift to align the built environment with Australia’s national emissions targets. As buildings account for around 20% of the nation’s emissions, these changes are seen as both necessary and economically beneficial.

Water Leaks and the Balcony Blues

Water damage — particularly in apartments — is a cost builders and insurers know too well.

One smart tweak in NCC 2025? New rules mandating that horizontal surfaces like balconies be slightly sloped to direct water away from buildings.

It’s a subtle design intervention, but one that could save thousands in repairs and give strata communities more peace of mind.

Controlling Condensation and Mould Risk

As buildings get more airtight, the risk of condensation increases — and with it, mould.

The draft includes climate-specific changes to manage moisture and improve ventilation. The aim is to mitigate health risks, particularly in cooler regions where condensation is more common.

It’s a modest shift — but it brings the NCC closer to modern global building standards.

Better Facilities for Women

Public toilet design is also evolving.

Two key updates include:

• More toilets for women in single-auditorium venues (think theatres or arenas), reducing queuing
  
• Sanitary item dispensers required in all commercial buildings
  

It’s about dignity and health — and it’s long overdue.

Carpark Fire Safety Gets an Overhaul

The code is also catching up to modern vehicle realities.

With larger and more flammable vehicles (including EVs), and carparks being used for more than just parking, NCC 2025 boosts fire safety with:

• Increased fire resistance levels
  
• Sprinklers required for carparks with over 40 vehicles or car stackers
  

These changes aim to protect both property and people in multi-use facilities.

No More ‘Expert Judgment’ Alone

In a move that boosts accountability, the draft now prohibits relying on “expert judgment” alone to assess fire safety and structural solutions.

Instead, compliance must be backed by clear methods, evidence, and documentation — a win for transparency and safety.

What Happens Next?

The Australian Building Codes Board (ABCB) is actively seeking industry feedback.

Here’s how to get involved:

• Visit the ABCB website to watch webinars and access detailed breakdowns
  
• Review the draft NCC 2025, available from May 1
  
• Submit your feedback on the clarity of drafting by July 1
  

This is a crucial moment for builders, designers, and industry consultants to help shape the rules that shape our built environment.

Author: The Good Builder

The Good Builder is a media platform that provides news and insights for Australia’s home building industry. From exclusive stories and curated insights to bold industry perspectives, we deliver the news and updates that keep builders, suppliers, and the entire home building industry inspired and ahead of the curve.