The name is misleading. Quiet enjoyment has almost nothing to do with noise. It is about undisturbed possession: having taken the property, the tenant is entitled to actually have it, and the landlord is not entitled to behave as though they still do.
It is implied into a tenancy whether or not the document says so, which is why it matters more than most clauses that are written down.
What it covers in practice
Entry. A landlord does not have an unrestricted right to walk in. Access for inspection or repair is normally on reasonable notice, at a reasonable time, and for a stated purpose. An agreement often specifies the notice; where it does not, the expectation of reasonableness still applies.
Services. Cutting off water or power to pressure a tenant is not a collection method. It interferes with the thing the tenant took the property for.
Locks and access. Changing locks, removing doors or windows, or otherwise preventing entry is a substantial interference with possession.
The tenant's property. Removing or disposing of a tenant's belongings is a separate wrong in itself.
Persistent harassment. Repeated unannounced visits, or conduct designed to make occupation untenable, can amount to a breach even where each individual act looks minor.
What it does not cover
Ordinary neighbours. Noise from the unit next door is not usually a breach by the landlord, unless the landlord has some responsibility for it.
Necessary repairs. A landlord carrying out works, on notice, at reasonable times, is doing what the tenancy contemplates, even where it is inconvenient.
Things outside the landlord's control. A road being dug up outside is not the landlord's interference.
Silence. Again: the covenant is not about decibels.
Why this matters during an arrears dispute
This is where the concept most often becomes relevant, and where landlords most often go wrong.
Whatever the arrears, the route runs through the tenancy agreement and the applicable law. Changing locks, removing doors or windows, cutting water or power, or disposing of a tenant's property are not collection methods, and using them converts a strong case into a weak one, usually at the exact moment an independent record would have been worth the most.
A landlord owed six months of rent, with a full ledger, dated reminders and a served notice, is in a strong position. The same landlord who has cut the water is now defending their own conduct instead of pursuing the debt. See distress for rent for the formal route that exists precisely so that self-help is not necessary.
If it is being breached
- Write it down, on one thread. Dates, times, what happened, who was present.
- Ask for it to stop, in writing, referencing the specific conduct rather than characterising it.
- Photograph anything physical, such as a changed lock or a disconnected supply.
- Keep paying rent where you can. A tenant in arrears complaining of interference has a weaker position than one who is current, even where the interference is real.
- Take advice. What remedies are available, and through which route, depends on the tenancy and the premises.