Performance-Driven Compliance Without Compromising Design
We work closely with architects, engineers, and developers to deliver JV3/J1V3 assessments that align with your project’s unique design and operational goals. Our team uses advanced thermal modelling to demonstrate that your building performs as well as or better than a compliant DTS reference building.
Thermal Modelling & Flexibility
We simulate your building’s energy use under real-world conditions to assess compliance. JV3/J1V3 allows for larger glazing areas, alternative materials, and innovative systems that may not meet DTS but still perform efficiently.
NCC 2022 Alignment
Our assessments are fully compliant with the latest Section J provisions of the NCC.
Integrated Support
We collaborate with your design team to ensure the modelling reflects your actual design intent and construction methodology.
A Smarter Way to Demonstrate Compliance
JV3 (also referred to as J1V3 under NCC 2022) is a performance-based compliance pathway under Section J of the National Construction Code (NCC). Unlike the Deemed-to-Satisfy (DTS) provisions, which set out prescriptive requirements, the JV3 method uses thermal modelling to assess energy efficiency.
With this approach, your proposed building is compared against a reference building that fully complies with all DTS provisions. If your design demonstrates equal or better performance in terms of energy use, it is deemed compliant.
Key benefits of JV3 include:
- Cost savings – optimise materials and finishes without over-specifying
- Design flexibility – adapt solutions to suit architectural intent and site constraints
- Compliance certainty – maintain NCC compliance through verified thermal modelling
Regulations Around JV3 Modelling and Performance Solutions
The JV3 (J1V3) Performance Solution method is strictly regulated under the National Construction Code (NCC) to ensure accuracy, reliability, and consistency in energy efficiency assessments. These regulations exist to prevent misuse of the provisions and to maintain the integrity of performance-based compliance pathways.
To comply with NCC requirements, JV3 modelling must
- Use validated software that meets the ASHRAE 140 standard
- Include accurate 3D modelling of the building with hourly energy demand calculations
- Apply all relevant NCC modelling parameters
At Torple, we utilise advanced software such as DesignBuilder, which is fully validated under ASHRAE 140. This allows us to deliver
- Detailed 3D building modelling
- Comprehensive HVAC system performance assessments
- Daylight and CFD modelling for enhanced building analysis
This ensures that every JV3 Performance Solution we provide is not only NCC-compliant, but also delivers practical, cost-effective outcomes for developers, architects, and builders.
How We Deliver JV3/J1V3 Reports
Initial Consultation
We begin with a consultation to understand your project scope, building class, and the suitability of JV3/J1V3 as a compliance pathway.
Data Collection & Plan Review
We gather architectural drawings, specifications, and system details to model both the proposed and reference buildings.
Thermal Modelling & Reporting
Using accredited software, we simulate energy performance and prepare a detailed JV3/J1V3 report with clear recommendations and compliance outcomes.
Submission & Support
We assist with submitting your JV3/J1V3 report and provide any revisions or clarifications needed to ensure approval by certifiers or councils.
Have some Questions
What is a JV3/J1V3 assessment?
It is a performance-based compliance method that uses thermal modelling to compare your proposed building to a DTS-compliant reference building.
When should I use JV3/J1V3 instead of DTS?
It is ideal when your design doesn’t meet DTS requirements—such as buildings with large glazing areas, unique materials, or unconventional layouts.
What does a JV3/J1V3 report include?
It includes thermal modelling results, comparison with the reference building, and documentation to demonstrate compliance with NCC 2022 Section J.
How long does it take to complete a JV3/J1V3 report?
Timelines may vary depending on project complexity and documentation readiness.
Can you coordinate with other consultants?
Yes! We work closely with your design and engineering teams to ensure the modelling reflects your actual design and construction approach.
Hear From Those We've Partnered With
We take pride in delivering thoughtful, sustainable solutions—and our clients say it best.
“The Torple team has been fantastic over the years in providing detailed energy assessments. Specifically, in being pro-active in providing solutions to star rating shortfalls in an easy manner. I would highly recommend Torple due to their low fuss approach to every project they undertake”
“I have worked with Torple for many years on both residential and commercial projects and they play a valuable role in my business in both design development and the development approval process. They are prompt, efficient and good communicators and provide up-to-date information and advice.”
“Professional, efficient and easy to deal with. The team at Torple constantly deliver accurate reports quickly and provide helpful guidance throughout the process in an ever evolving space. Highly recommend for reliable energy rating assessments”.
“We have been using Torple for 18 Months now and have found them fantastic to deal with. They are solution driven and are always willing to work with us to produce the best outcome for our clients. We look forward to working with Torple for future projects & developments.”
“We love working with Torple to ensure our designs are compliant with NCC requirements for both Residential and Commercial Buildings. We appreciate their in-depth knowledge to help us achieve compliance with Section J requirements. They are highly skilled in their field, easy to work with and a great asset to our company.”
