Noise is the complaint with the worst escalation curve in short-term rentals. A broken dishwasher costs you a repair. A noisy Saturday costs you a neighbour, and a neighbour who has decided you are a problem can cost you a licence.
Almost all of it is preventable, and almost none of the prevention happens on the night.
The bookings that go wrong
Across the hosts I have talked to, the pattern is consistent enough to be useful. The bookings that generate noise complaints share features:
- One or two nights, weekend. A three-night booking is a trip. A Saturday-only booking within driving distance of the guest's home is frequently an event.
- A local guest. Not always a problem, but a booking from twenty minutes away for one night has a different purpose than one from four hours away.
- Booked within 48 hours of arrival. Spontaneity correlates with gatherings.
- Fewer guests declared than the place sleeps, booked at the last minute. People understate the headcount when they intend to expand it.
None of these is disqualifying on its own. Two or three together is worth a message. A friendly one:
Hi — thanks for booking. Just so there are no surprises: the flat is registered for four and we have a strict no-parties rule because of the neighbours. Is this a quiet weekend away, or are you celebrating something? Happy either way, I just want to make sure the place suits.
Most people answer honestly. The ones planning a party either cancel or tell you, and both outcomes are better than Saturday night.
What to install
A decibel monitor. Around $80 to $150 for a device that reports sound level without recording audio — and that distinction matters, legally and ethically. Disclose it in your listing and in your guidebook; an undisclosed sensor is a much bigger problem than the noise ever was.
Set the alert threshold by experiment, not by default. Sit in the room, have a normal conversation, and note the reading. Then put music on at a level you would consider too loud and note that. Your threshold goes between them, usually around 70 to 75 dBA sustained over ten minutes. A single spike means someone dropped a pan.
Soft furnishing in the loud room. A rug on a hard floor and heavy curtains do more for a shared wall than anything you can write. If your complaints come from one specific neighbour, the cheapest fix is often physical.
Exterior lighting on a timer, not a sensor, if your complaints are about people in the garden. A sensor light that flicks on at 1am is itself the complaint in some cases.
What to write
Three sentences in the guidebook, near the top of the house rules, phrased as a specific, physical fact rather than a policy:
After 10pm, please keep it indoors. The bedroom on the other side of the left-hand wall is about two metres away, and our neighbour starts work at 5am. The garden carries sound straight down the terrace — voices out there at midnight are audible in four houses.
A guest who thinks they are in a detached house behaves like someone in a detached house. Tell them what the building is.
The message at 11:40pm
If the sensor fires, or the neighbour calls, the response determines everything. Two rules: be quick, and be easy to comply with.
Hi Tom — sorry to message late. The sound monitor flagged the last ten minutes. I know it doesn't feel loud in there, but the neighbour's bedroom shares that wall and I've had a complaint before. Could you bring it inside and drop the music a bit? No problem at all otherwise — enjoy the rest of your night.
Three things that message does: it names the evidence, it explains why it is loud somewhere else, and it gives a concrete action. It does not threaten, because a threat at midnight to a group of people who have been drinking produces defiance rather than quiet.
If there is no response in twenty minutes, call. If there is no answer to the call, that is when you escalate to the platform, and by then you have a timestamped record of a polite request, which is the thing that protects you.
The neighbour is your actual customer
The most useful thing I ever did for noise was give the neighbour my mobile number and ask them to call me before calling anyone else. It sounds like inviting trouble. In practice it converted a hostile party into a collaborator. What neighbours hate most about short-term rentals is having no one to talk to, and the noise is downstream of that.
I message them before a busy weekend. I apologise quickly when something happens. Once a year I drop off something from the good bakery. The total cost of that relationship is about £30 and two hours, and it is the single highest-return investment in the entire operation.
What does not work
Posting "NO PARTIES" in capitals on the fridge. Charging a deposit you will never actually claim. Relying on the platform's policy. Writing quiet hours into rule number nine of eleven.
Screening, one physical device, three specific sentences, one fast polite message, and a neighbour who has your number. That is the whole system, and it holds up.