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Home/Resources/Section J: NCC 2025 vs 2022
Tool 04 · Commercial

Section J under NCC 2025, next to NCC 2022.

Enter your elevations and this works out the glass performance each edition demands, alongside the solar, fabric and services requirements. Deemed-to-Satisfy provisions, both editions, side by side.

WA adopted NCC 2025 on 1 May 2026 with a 12 month transition. Check which edition your project can use.
NCC 2025

INPUTS: FACADE BY ELEVATION

Elevation
Wall m²
Glass m²
Shading

Glazing J4D6 · Specification 37 Method 2

Whole facade pooled across all aspects. Elevations may also be assessed individually under Method 1; the pooled method is used here for simplicity and is generally the less onerous of the two.

On-site solar photovoltaics · J9D5

NCC 2022
0 kW
Space and switchboard provision only
››
NCC 2025
—
Assumptions and exclusions

    Modelling both NCC editions for your project

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