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NCC 2025, explained for tradies

• Smoke alarms in a house: where they go, mains power and interconnectionWhat the NCC 2025 Housing Provisions require for smoke alarms in Class 1a houses — locations on each storey, ceiling positioning, mains power, interconnection and AS 3786. Clause text with links to the ABCB.
• Wet area waterproofing in houses: showers, baths, floors and wallsNCC 2025 Housing Provisions Part 10.2 explained: which wet-area surfaces must be waterproof vs water resistant, shower areas, baths, floor falls and materials. Clause text with links to the ABCB.
• How far a shed or garage (Class 10a) has to be from the house and other shedsNCC 2025 Housing Provisions Part 9.2: separation of Class 10a sheds, garages and carports from Class 1 houses, from each other and from the allotment boundary — 900 mm and 1.8 m rules, FRL walls, carport exemptions. Clause text with ABCB links.
• Roofed patios and alfrescos near the boundary in WA: non-combustible construction rulesWestern Australia's NCC 2025 variation for roofed outdoor areas (Housing Provisions Part 9.6): when a patio, alfresco or verandah near the boundary needs non-combustible construction, the 900 mm rule and separation between roofed areas. WA clause text with ABCB links.
• Maximum hot water temperature at the tap: what the Plumbing Code requiresNCC 2025 Volume Three (Plumbing Code of Australia) on heated water: the maximum delivery temperature at sanitary fixtures used for personal hygiene, storage temperature for Legionella control, and the water heater requirements. Clause text with ABCB links.
• Stair construction and barriers to prevent falls in a houseNCC 2025 Housing Provisions Parts 11.2 and 11.3: stairway construction (riser and going dimensions, consistency, landings) and barriers/balustrades to prevent falls — heights, openings and the 1 m rule. Clause text with ABCB links.