Builder compliance questions: NCC answers
For builders and site supervisors: ask about any stage of a job, or upload a photo, and get likely defects with the NCC clause and state rule to check.
Guides: Wet-area waterproofing: what the NCC asks for · Balustrades and stairs: the NCC numbers that matter · Smoke alarms: NCC rules for new work, state rules for existing homes · Brickwork: DPCs, flashings, weep holes and ties
Job: none
ComplianceApp is a coaching aid, not a substitute for a registered building surveyor, certifier, engineer or licensed practitioner. Always verify requirements against the official National Construction Code for your jurisdiction and adoption date. Outputs can be wrong. The Australian Building Codes Board does not endorse this tool.
The National Construction Code 2025 and the National Construction Code 2022 were provided by the Australian Building Codes Board under the CC BY 4.0 licence.
The following are licensed under CC BY-ND 4.0. Text quoted from them is unchanged. Our explanations are not part of these documents.
- NCC 2019 Volume Two Amendment 1: © Commonwealth of Australia and the States and Territories 2020, published by the Australian Building Codes Board.
- NCC 2022 Consolidated Requirements: © Commonwealth of Australia and the States and Territories 2022, published by the Australian Building Codes Board.
- NCC 2022 Livable Housing Design Standard: © Commonwealth of Australia and the States and Territories 2022, published by the Australian Building Codes Board.
- Standard for Construction of Buildings in Flood Hazard Areas: © Commonwealth of Australia and States and Territories 2019, published by the Australian Building Codes Board.
- NatHERS Heating and Cooling Load Limits: © Commonwealth of Australia and the States and Territories 2022, published by the Australian Building Codes Board.
- Standard for Whole-of-home Efficiency Factors: © Commonwealth of Australia and the States and Territories 2022, published by the Australian Building Codes Board.