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Mould in Wardrobes: Tenant Lifestyle or Property Defect?

23 April 2025 · 6 min read

Wardrobe mould is the classic 'blame the tenant' battleground. Here's how to investigate the real cause.

In this article

  • 01. Why wardrobe mould isn't a lifestyle problem
  • 02. The three causes you'll find behind almost every case
  • 03. What to document before anyone touches it
  • 04. How to argue back when 'lifestyle' is raised
  • 05. When to get an inspection

Why wardrobe mould isn't a lifestyle problem

Wardrobe mould is the case agents love most. It's hidden behind closed doors, it sits against an external wall, and it grows on cotton, leather and timber — all the things that make for vivid photos and easy 'lifestyle' arguments.

But mould doesn't grow in cupboards because people exist. It grows there because three conditions stack up: a cold surface, still air and a moisture source. None of those are tenant behaviour — they're building characteristics.

The three causes you'll find behind almost every case

After dozens of wardrobe-mould inspections, the same three causes turn up over and over:

  • An uninsulated or single-skin external wall — the wardrobe back panel sits at a few degrees below room dew point, so moisture in normal indoor air condenses on it overnight
  • No air movement — louvre vents have been painted shut, doors stay closed, and the air inside the wardrobe stagnates against the cold surface
  • An external moisture source — rising damp, a leak in the wall cavity behind, or rain ingress at a window head above the wardrobe

What to document before anyone touches it

Before you clean, move clothes, or contact the agent, document everything in this order:

  • Wide-angle photo of the open wardrobe with the affected wall visible
  • Close-up photos with a ruler or coin for scale
  • A photo of the wall the wardrobe shares — is it an external wall? A party wall? Are there water stains above or below?
  • A short video panning across the affected area while you describe what you're looking at and the date
  • If you have a hygrometer, a photo of the reading inside the wardrobe with the door closed for 24 hours
  • Photos of damaged items with rough purchase date and replacement cost

How to argue back when 'lifestyle' is raised

The lifestyle argument falls apart fast when you can point to:

  • Mould on the wall behind the wardrobe, not just on clothing — i.e., the substrate is wet before the clothes touch it
  • Mould on the external wall but not on the internal walls of the same room
  • Painted-over or removed wardrobe ventilation
  • The same mould pattern reappearing after cleaning, in the same exact spot
  • Other rooms or units in the building reporting the same issue

When to get an inspection

If your agent has formally raised 'lifestyle' or has refused to investigate the wall behind the wardrobe, an independent inspection cuts the argument off. We'll record substrate moisture readings on the affected wall, compare them to unaffected walls in the same room, and photograph the wardrobe ventilation (or lack of it).

If you'd rather start with what you've already got, send us your photos for an Evidence Review first — we'll tell you whether you need on-site verification or whether what you have is enough.

Ready to put your evidence together?

Start with a Mould Evidence Review. We'll tell you what you've got, what's missing and what to do next.

Get a Mould Evidence Review →

This article is general information for NSW renters and is not legal advice. For legal advice contact a solicitor, community legal centre or Tenants' Advice and Advocacy Service.

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