Buying an apartment means buying into someone else's defect problem
When you buy a house, any building defect is yours to find and yours to fix. When you buy an apartment, defects in — the roof, external walls, fire systems, shared plumbing, lifts, and basement waterproofing — are shared problems funded by every owner through levies. You do not get to choose the builder, the materials, or the contractor who fixes the problem. You get a vote at a general meeting and a share of the bill.
- 85% of NSW apartment buildings built since 2000 had at least one significant defect in a 2012 UNSW survey of 1,020 strata owners .
- $6.2 billion is the national estimate to rectify structural and safety defects in apartments built 2009-2019 .
- 97% of NSW buildings, 74% of Victorian buildings, and 71% of Queensland buildings had defects in a Deakin and Griffith universities analysis of 212 audit reports .
These are not fringe cases. This is the baseline risk of buying an apartment in Australia.
The scale of the problem is not an exception, it is the norm
Australia went through a massive apartment construction boom from the mid-2000s onward, and quality control did not keep pace. The Shergold Weir Report in 2018 found there had been almost no effective regulatory oversight of commercial building, and those involved in high-rise construction had been largely left to their own devices .
Cladding Safety Victoria found that of the 359 buildings it funded for cladding rectification, nearly 50% also had non-cladding defects, and of those, 80% had water or moisture-related structural damage . The 2023 NSW Strata Defects Survey identified two categories that dominate the defect landscape:
Defect Type | Prevalence | Why It Matters |
|---|---|---|
Waterproofing failures | 42% of buildings | Water gets into balconies, bathrooms, basements, and facades. Causes mould, structural decay, and damage to units below the source. |
Fire safety defects | 24% of buildings | Non-compliant cladding, missing fire collars, gaps in fire-rated walls, faulty smoke detection. Life-safety issues. |
Building fabric and cladding | 40% of defects nationally | Cracking, movement, water penetration through external walls. One-third caused by waterproofing or drainage failures. |
Structural defects | 7% of defects nationally | Cracking in load-bearing walls, foundation settlement, concrete spalling. Less common but the most expensive to fix. |
A strata report is cheap insurance against inheriting a disaster
A is a review of the owners corporation records for the building you are considering. It is not a physical building inspection. It tells you how the building is managed and whether there are financial or legal problems that will become yours if you buy.
A strata report typically covers:
- Financial health. The balance of the administrative fund (day-to-day costs) and the (long-term repairs). A healthy capital works fund means the building is saving for future maintenance. An empty one means a is coming.
- Special levies. One-off charges to cover major repairs. If the building has a $2 million waterproofing rectification underway and the capital works fund is short, every owner will be asked to contribute. That includes you, the day you settle.
- Defect rectification plans. Any existing defect claims, builder disputes, legal proceedings, or rectification work in progress.
- Insurance. Confirmation that the building has adequate common property insurance and whether any claims have been made.
- Meeting minutes. Minutes of recent strata committee and general meetings reveal disputes, deferred maintenance, and the general tone of the . Buildings with engaged, functional committees tend to be better maintained.
- By-laws. Rules governing pets, renovations, parking, short-term letting, and noise. These affect your daily life and your ability to use the property as you intend.
A strata inspection report typically costs $250 to $500, depending on building size and record complexity . Most are delivered within 3 to 7 business days. Your conveyancer can order one, or you can commission one directly.
For $250 to $500, you get visibility into the financial and legal health of a building where rectification costs average $331,829. The maths on this is straightforward.
Established buildings give you evidence, off-the-plan gives you promises
Established buildings give you a track record. You can get a strata report, read the meeting minutes, see the capital works fund balance, and check whether defect claims have been made. The building exists. You can inspect it.
Off-the-plan apartments give you none of this. You are buying based on plans, renders, and a developer's promises. You cannot physically inspect the building during construction . There is no strata report because there is no owners corporation yet. There is no defect history because the building has not been lived in.
This does not mean you should never buy off-the-plan. It means you need to rely on different protections: the developer's track record, the statutory warranty period, and any regulatory schemes that apply in your state.
Every state has statutory warranties requiring builders to fix defects for a set period after completion. The periods differ, and they matter.
State | Warranty | Minor Defect Warranty | Key Legislation |
|---|---|---|---|
NSW | 6 years | 2 years | Home Building Act 1989 |
VIC | 10 years | 2 years | Domestic Building Contracts Act 1995 |
QLD | 6 years and 6 months | 1 year | QBCC Act 1991 |
In Queensland, buildings over 3 storeys (excluding a single storey used mainly for parking) are not covered by the QBCC Home Warranty Insurance Scheme for original construction . This means most apartment buildings in Queensland have statutory warranty protections but no insurance backing if the builder becomes insolvent.