The short answer
Clutter is a build-up of things that the household can still manage and clear. Hoarding is an ongoing difficulty letting go of things, so belongings pile up until rooms can no longer be used for their purpose and the person feels distress at the idea of discarding them. Hoarding disorder is a recognised mental health condition that a GP or psychologist can assess.
Clutter
- Rooms can still be used for what they are for
- Clutter gets cleared from time to time
- Letting go of things is easy enough when there’s a reason to
Hoarding
- Ongoing difficulty letting go of things, whatever their value
- Strong distress at the thought of discarding
- Rooms, benches, beds or exits can no longer be used as intended
- Often, acquiring more things than there is space for
- The build-up continues over months or years
Hoarding disorder
Hoarding disorder was recognised as a separate mental health condition in 2013. Research suggests it affects roughly 2–6% of adults, and it often becomes more noticeable with age. It commonly occurs alongside depression, anxiety or ADHD.
Only a health professional can diagnose hoarding disorder. If you think it may be involved, a GP is a good first step. Effective treatment often combines psychological therapy with practical, hands-on support at home.
Using the Levels I–V scale
Professionals describe homes using a five-level clutter–hoarding scale. It rates the home, not the person. Level I is a lived-in home. From Level III, at least one room no longer works, and outside support usually makes a real difference.
Common questions
Is hoarding a mental illness?
Hoarding disorder is a recognised mental health condition. Not every cluttered home involves hoarding disorder. Grief, depression, ADHD and physical illness can also lead to heavy clutter.
Can hoarding get better?
Yes. Progress is usually gradual. Steady support, with the person making the decisions, works far better than one-off clean-outs.
This guide offers general information, not medical, legal or mental health advice. If anyone is in immediate danger, call 000. For crisis support, call Lifeline on 13 11 14.