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NCC 2025 · Victoria

What NCC 2025 changed, and what it means for your drawings.

Victoria adopted NCC 2025 on 1 May 2026 with no transition period. Three changes reach the drawings on most commercial projects.

Adopted 1 May 2026 in Victoria1 May 2027 NSW, QLD, SA, TASClass 3 and 5–9

The changes

Three things that land on the drawings.

J9D5

On-site solar

NCC 2025 updates J9D5 so Class 3 and Class 5–9 buildings install solar PV rather than only leaving space for it later. That lands on the roof plan, not just the report.

J4

Tighter fabric and glazing

Section J4 is strengthened, with new thermal emittance rules for roofs and stricter solar admittance criteria for wall-glazing. Glazing specified to a 2022 report does not automatically pass.

ADOPTION

Not the same date everywhere

Victoria, WA and the ACT take NCC 2025 from 1 May 2026; NSW, Queensland, SA and Tasmania from 1 May 2027; the NT has not adopted it. Which edition applies follows your permit date, not the calendar.

Which edition applies depends on your permit date and the state the project is in — adoption runs from 1 May 2026 in Victoria, WA and the ACT, and 1 May 2027 in NSW, Queensland, SA and Tasmania. Tell us the date and it is confirmed before quoting.

Which edition applies

Not the same date everywhere.

The edition your project is assessed against follows the permit date and the state, not the calendar. A job permitted before adoption stays on the earlier edition — which is why three editions are still in use here at the same time.

201920222025

Editions in play

Editions still in use0
States on NCC 2025 from May 20260
States from May 20270

Tell us the permit date and the state, and the edition is confirmed before any work starts.

Contact

Tell us about the project.

Tell us which report you need and send the drawings. A fixed quote comes straight back.

Email bgenergyassessments@gmail.com Call 0470 389 168

Taner Terlemez · Beyond Green Energy Assessments · ABN 25 918 681 385

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