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Litter-tray odour from neighbours: care, ventilation and agreements
A persistent smell near your front door, window or shared corridor may seem to come from a litter tray. How can you raise it without assuming the source?
From the outside, you don’t always know where a smell originates. Therefore, ask first to look together at care, waste and the route of the air. Keep room for a source other than a litter tray.
This guide applies to England.
Where and when do you notice the odour?
Write down the place, time, and duration. Is it mainly at an open window, by the front door, near a rubbish can or in a shared stairwell? Ask if the owner recognises the smell himself and what happens at those moments.
Name what it does to your use of the home, for example that you close the window often or prefer to avoid the corridor. Don't say that the neighbour's whole house is polluted if you only noticed a smell at your door.
What causes can you investigate together?
The tray, used-litter storage and airflow may all matter. Cleaning alone may not solve an unwanted route between homes.
Ask whether the trays are easy to reach and regularly cleaned. Discuss the placement and cleaning routine.
If it’s about outdoor faeces in your garden, then the guide on cats in the garden is better suited to that question. Read the related guide
How can you start the conversation?
Explain the observation
Give one or two examples and ask to investigate together. A first trial could involve storage or tray placement, with feedback at an agreed time.
A calm opening
“Over the last few evenings, I’ve noticed a strong smell near our front door that seems like used cat litter. I’m not sure of the source. Could we check whether the tray, waste storage or airflow might be involved?”
Arrange a feasible trial
Record what is changed and when you give feedback. Choose one item at a time. Let the owner organise the care and any changes for the cat themselves.
Which tools and adjustments are useful?
Enough clean, suitable litter trays
Cats Protection recommends one tray per cat plus one extra, in suitable quiet locations. Clean them regularly and bear in mind that scented litter may put cats off. A lid does not replace cleaning, and the cat must be able to reach and use the tray comfortably.
Storing and disposing of waste properly
Use a closed bin and follow your council’s instructions for used cat litter.
Explore another place
Discuss another suitable location without moving the problem to a neighbour or restricting the cat’s access. The owner can ask a vet or cat behaviourist about toileting difficulties.
Have air flows assessed
Ask the managing agent to inspect shared ventilation. Keep necessary vents open.
Which rules apply in England?
A persistent smell in shared or rented housing may warrant inspection of ventilation or common parts. Ask the landlord or managing agent to establish the route before attributing it to a particular flat.
What if the smell keeps coming back?
Record when and where the smell is strongest. Ask for a cleaning or ventilation check rather than sealing a vent.
Sources and review date
GOV.UK — Repairs in private rented housing
Guide reviewed on 7 November 2026.
Cats Protection — Cats and toileting
Keep the next step manageable
Use the free incident diary for a few representative observations, any agreement and improvements. If you need outside help, see Who can help. State what happened, what you have tried and what you are asking the recipient to do. You do not have to keep approaching the neighbour if contact feels unsafe.
Would you like to write to your neighbours?
On the situation page you can see the CalmNotes bundle, its contents and the other support options.