A Deemed-to-Satisfy (DTS) Energy Report is used to demonstrate that a building meets the minimum energy efficiency requirements set out in the National Construction Code (NCC).
This assessment provides a prescriptive compliance pathway, where building elements such as insulation, glazing, lighting, and HVAC are compared directly against standardized performance criteria.
We prepare clear, accurate DTS reports that meet council and certifier requirements, ensuring smooth approval without unnecessary changes to the design.
DTS is commonly used for:
Commercial & Industrial Buildings
Warehouses, Retail & Office Fit-outs
Multi-Unit or Mixed-Use Projects
Alterations & Additions to Existing Buildings
Non-residential projects where performance modelling is not required
If project complexity, glazing extent, or façade performance makes DTS non-compliant, we can also switch to a JV3 (performance modelling alternative) and advise the most efficient and economical pathway.
| Component | What We Analyse |
|---|---|
| Building Envelope | Insulation levels, floor/wall/roof performance, thermal bridging |
| Glazing / Window Performance | U-values, SHGC, frame type, shading requirements |
| Roof & Wall Construction | R-values, detailing, material selection considerations |
| Lighting & Electrical Systems | Lighting power density compliance and upgrades |
| HVAC System Requirements | Minimum efficiency and control standards |
| Hot Water & Ventilation | System type and efficiency verification |
We ensure that all specifications are practical for builders and aligned with standard construction practices.
The DTS pathway is often:
Faster to produce
More predictable than simulation-based ratings
Cost-effective for standard construction systems
Ideal for non-residential projects where NatHERS does not apply
However, if your building design includes large glazing areas, modern architectural façades, or unique construction systems, we will advise whether JV3 modelling may be more efficient.
Full DTS Report compliant with NCC Vol 1 / Vol 2
Material & Construction Specification Schedules
Glazing Performance & Minimum Requirements Tables
Builder-ready Insulation & Detailing Requirements
Support for Council / Certifier Queries
We work directly with your architect, project manager, or builder to ensure smooth approval and implementation.
Send us your project plans in PDF or DWG:
Floor plans, elevations & sections
Site orientation and location
Window / glazing schedule (if available)
Mechanical or lighting specifications (if known)
If anything is missing, we will guide you or coordinate with your design team.
Simply send us your project drawings and any relevant planning notes.
We will review the documentation and provide a fixed-fee quote along with turnaround time.

Certified energy assessments for a sustainable future. Fast, professional, and compliant.