The National Construction Code (NCC) requires that new commercial buildings meet minimum energy efficiency requirements under Section J “Energy Efficiency” provisions.
Building surveyors and authorities require energy efficiency performance assessment reports to be prepared, assessing the building against the Deemed-to-Satisfy (DTS) Provisions of the NCC to demonstrate compliance.
Most simple commercial buildings can be assessed using the DTS pathway. Larger and more complex buildings will require the collaboration of specific professionals such as engineers and technicians to demonstrate full compliance of the Section J provisions.
Our expert team understand the provisions of NCC Section J and will work with your commercial designer to prepare a report that demonstrates compliance to obtain a building permit.
“I have had the pleasure of dealing with V-Star Energy on a few occasions. Vuong, has proven to be a great communicator and make the entire process incredibly easy to navigate. I highly recommend V-Star Energy and that’s coming from someone who doesn’t recommend many consultants.”
Ayman Yassin, Development Manager
Embracing the Next Generation of WSUD Reporting: V-Star Energy Transitions to Blue Factor
23 October 2025 | V-Star Energy Change is on the horizon for Water Sensitive Urban Design (WSUD) reporting in Victoria. The well-known STORM tool is now retired, and a new, modernised platform—Blue Factor—is taking its place. Our team at V-Star Energy has already completed the transition to Blue Factor, ensuring a seamless and uninterrupted service for…
NCC 2025 Delayed Until 2029: What It Means for Your Building Projects
In a significant announcement yesterday, the Australian government confirmed a pause on non-essential changes to the National Construction Code (NCC) 2025 until mid-2029, extending the current NCC 2022 standards for residential buildings. Here’s how this affects your projects and what you need to know. Key Changes Under the Delay What stays the same? The Path…
Window-to-Wall Ratio
The ideal percentage of glazing to wall—often referred to as the window-to-wall ratio (WWR)—depends on several factors, including the building’s orientation, climate, and intended use. Here’s a general guideline for different orientations: North-Facing Walls: South-Facing Walls: East-Facing Walls: West-Facing Walls: General Considerations: These percentages are starting points and should be adapted based on specific design…
Building Thermal Rating Assessors 