The essential compliance pair for every residential building professional in Australia — the 2025 NCC Volume Two & Housing Provisions Standard Bundle gives you both documents you need to design and build compliant Class 1 and Class 10 buildings with confidence. Published by the Australian Building Codes Board (ABCB), these two publications are designed to work together and must be read together — Volume Two sets the Performance Requirements, and the Housing Provisions Standard tells you exactly how to meet them.

What's Included

 NCC 2025 Volume Two — Building Code of Australia (Class 1 & 10)

Details of NCC 2025 Volume Two

The governing compliance document for houses, townhouses, duplexes, and non-habitable structures including garages, sheds, and carports. Volume Two sets the minimum Performance Requirements, Verification Methods, and Deemed-to-Satisfy pathways for all Class 1a and Class 10 building work in Australia.

Key 2025 updates include:

• Expanded condensation management requirements now covering all climate zones 1–8 — including Brisbane, Adelaide, Perth, and Canberra for the first time, not just alpine and southern regions
• Mandatory drained and vented wall cavities in climate zones 6, 7 and 8 to reduce the risk of moisture damage and mould
• New vapour permeance requirements for wall control layers, varying by climate zone and construction type
• New Deemed-to-Satisfy pathway for External Insulation and Finish Systems (EIFS) cladding via AS 5346:2023
• Updated structural Australian Standards including revised wind loads (AS 1170) and timber framing (AS 1684)
• Revised roof ventilation provisions split by insulation type — parallel vs non-parallel to the roof plane
• 7-star NatHERS and whole-of-home energy budget requirements carried forward from NCC 2022 Amendment 2 — stable and unchanged until mid-2029
• Clarified Performance Solution assessment methods for structural reliability

NCC 2025 Housing Provisions Standard (HPS)

Details of NCC Housing Provisions Standard 2025

The detailed technical companion to Volume Two — the "how-to" guide that provides the Deemed-to-Satisfy provisions for residential construction, organised to follow the logical construction sequence of a building from site preparation through to completion.

The Housing Provisions Standard covers:

• Section 2 — Structural provisions: footings, slabs, framing, bracing, tie-down, and load-bearing walls using engineering design principles
• Section 3 — Footings and slabs: site classification, concrete, and masonry footing requirements
• Section 4 — Masonry: brick, block, and stone construction requirements
• Section 5 — Framing: timber and steel framing, including beams, columns, and roof framing
• Section 6 — Roof and wall cladding: weatherproofing, sarking, and cladding systems
• Section 7 — Fire safety: fire separation and resistance for Class 1 buildings
• Section 8 — Health and amenity: sanitary facilities, ventilation, and light
• Section 9 — Safe movement and access
• Section 10 — Energy efficiency and condensation management (Part 10.8): updated wall cavity and roof ventilation requirements across all climate zones
• Section 12 — Additional construction requirements: swimming pools, heating appliances, fireplaces, alpine area construction, and deck-to-wall connections
• Structural design manuals in Section 2 for buildings outside the scope of standard DTS provisions

Why Buy This Bundle?

Volume Two and the Housing Provisions Standard are two halves of the same compliance framework — one cannot be properly applied without the other.

• Volume Two tells you what performance outcomes new homes must achieve
• The Housing Provisions Standard tells you how to achieve them through detailed DTS technical provisions

Buying both together means you always have the full picture for any residential project — from assessing site classification and footing design, to specifying the right wall membrane for your climate zone, to verifying condensation management compliance. It eliminates the risk of designing or certifying against incomplete information and ensures your work meets the current 2025 standard from day one.

This is the core residential compliance pair — the minimum reference set every builder, designer, and certifier working on houses and townhouses should have on their desk.

Who Needs This Bundle?

This bundle is essential for:

• Residential builders and contractors — the primary compliance reference for all new Class 1a and Class 10 building work from 1 May 2026
• Architects and building designers specialising in houses, townhouses, and dual occupancy
• Building surveyors and private certifiers issuing residential building permits
• Draftspeople and building design practitioners preparing compliant documentation
• Structural engineers working with updated wind load and timber framing standards
• Construction product suppliers and specifiers — particularly wall membranes, cavity systems, EIFS cladding, and roof ventilation products
• Energy assessors and NatHERS consultants specifying insulation and wall assemblies
• Owner-builders undertaking significant residential construction or extensions
• Building industry educators, TAFEs, and RTOs delivering Certificate III and IV in Building and Construction
• Students in building design, construction management, and architecture programs