Building Defects Guide: How to Identify and Claim in Australia

Types of Building Defects

• 1 Major structural defects: affecting load-bearing elements — most serious category, longer statutory warranty period
• 2 Non-major defects: cosmetic or functional issues not affecting structural integrity
• 3 Examples: cracking walls, roof leaks, waterproofing failures, defective glazing, incomplete works, substandard workmanship

Statutory Warranty Periods

• 1 NSW: 2 years for non-major defects, 6 years for major structural defects (from completion date)
• 2 VIC: 2 years for non-structural, 6 years for structural defects under DBI insurance
• 3 QLD: 1 year maintenance period + 6 years for defective work from QBCC
• 4 WA: 12 months maintenance, 6 years for structural defects
• 5 SA, TAS, NT, ACT: Varying periods — check with your state's building regulator

Documenting Defects

• 1 Photograph all defects with timestamps and measuring tape for scale
• 2 Write a detailed defect schedule: location, description, when first noticed
• 3 Get an independent building inspection report from a licensed inspector
• 4 Obtain a rectification cost estimate from an alternative contractor
• 5 Keep copies of all correspondence with the original builder

The Rectification Process

Give the original builder first right to rectify — in writing, with a reasonable timeframe (typically 20 business days). If they refuse or the rectification is inadequate, escalate to your state's building dispute body. Pursuing rectification costs through home warranty insurance requires demonstrating the builder has refused to act or is no longer trading.