Noise in Hanoi, and How to Check a Flat Before You Sign

The rule almost every guide still quotes was abolished in December 2025

Search for the rule on noise in Vietnam and you will be told that noise is an offence between 10pm and 6am. Every expat guide says it, most landlords say it, and it stopped being the law on 15 December 2025.

Nghị định 282/2025/NĐ-CP was issued on 30 October 2025, signed by the Prime Minister, Phạm Minh Chính, and took effect on 15 December 2025, replacing Nghị định 144/2021/NĐ-CP.

Now the part that most of the English-language coverage got wrong, and the reason this page exists. We read the decree itself. The old offence, causing a loud noise or a commotion in a residential area between 22:00 and 06:00, was deleted. It was not rewritten to cover the whole day. It is not in the new decree at all.

Nor is any decibel figure, and nor is any definition of how loud is too loud. Article 9(3) sends every noise question the decree does not itself cover to environmental law.

So the accurate position is narrower than the headlines. There is no longer a noise offence tied to the clock, and what a ward can act on quickly is public disorder rather than noise as such. A complaint at three in the afternoon is no longer answered with come back after ten. But the question a ward officer is answering is whether this is a public disturbance, not how many decibels it is.

What the decree actually penalises

Read out of Articles 8 and 9 of the decree itself. Nothing here needs a sound level meter, which is the practical change.

Equipment can be confiscated on that last line only.You will read elsewhere that speakers are subject to confiscation under this decree. Article 9(4) attaches that power to unauthorised public campaigning equipment. It does not reach your neighbour’s karaoke speaker.

The hours for selling food and drink are set by the city, not by the decree, and we could not find the Hanoi instrument that sets them, so we are not going to tell you what they are. What is worth knowing is that the limit exists. If your problem is the place downstairs still trading at one in the morning, that may be a different and easier complaint than the noise.

Ward police can act on all of the above without noise-measuring equipment. That is not true of everything: anything that turns on a noise LEVEL still goes down the environmental route, and that route still needs a meter.

The serious fines, and the meter nobody had

The large noise penalties sit in environmental law rather than in the public order decree. Under Nghị định 45/2022/NĐ-CP they reach up to 160 million VND for exceeding the standard by 40 dBA or more. That route requires a calibrated, certified sound level meter.

That requirement is why the old system failed. Vietnamese press reporting in August 2022 found ward officials in Ho Chi Minh City saying plainly that they had no certified meter and had not been told where to get one, so they fell back on the small public order fine or on mediating between neighbours. The strongest penalty in the book was the one nobody could use, and the December 2025 decree is a direct answer to that.

And the criticism, which we would rather you read here than find later. Nguyen Hong Linh, a lawyer at the Ho Chi Minh City Bar Association, said the provision “merely lists prohibited acts and corresponding penalties without clearly defining what level of noise constitutes a violation”. Having read the decree, we think that is a fair description of it.

The technical standard changed too, and we are not quoting the new one

QCVN 26:2010/BTNMT was the national noise standard for fifteen years. It was issued under Circular 39/2010/TT-BTNMT on 16 December 2010, replacing TCVN 5949:1998, and it set the figures still quoted at renters today: in an ordinary residential area, 70 dBA between 06:00 and 21:00 and 55 dBA between 21:00 and 06:00, with 55 and 45 dBA in special areas.

A special area meant inside the fence of a medical facility, a library, a nursery, a school, a church, a đình or a chùa. The standard applied to household activity and not only to businesses, so home karaoke was always within its scope.

Those figures are history. QCVN 26:2010/BTNMT was replaced by QCVN 26:2025/BNNMT, issued under Circular 01/2025/TT-BNNMT of 15 May 2025 and in force since 14 November 2025. If anyone tells you the limit is 70 by day and 55 at night, they are quoting a standard that was superseded in November 2025.

We are not going to tell you what the new figures are, and this is why. The direction of the change is a tightening. We have that from a law firm’s note on the new standard rather than from the standard itself, because we could not retrieve the primary text, and one search summary we found contradicted itself on the effective date. A limit quoted from somebody else’s summary is exactly the thing this page exists to argue against, so there is no number here. When we can read the regulation, the figures will appear.

How to check before you sign

A two o’clock viewing tells you almost nothing. Agents show flats in the early afternoon, and that is the quietest window of the Hanoi day: after the morning rush, before the school run, before the evening traffic, before anyone gets home and turns a speaker on, and many hours before the overnight trades. A flat that is quiet at two on a Tuesday has told you exactly one thing. It is quiet at two on a Tuesday.

Go back to the street, on foot, and stand there. You do not need to get inside the flat again, although it is better if you can.

If you can only make one extra visit, make it the weekday morning one.

What to check in the building itself

• The windows. This is the biggest single variable and it costs nothing to check. Look at whether the window actually seals when it is closed, and press on it. A gap you can see is a gap you will hear.
• Close every window and stand still for a full minute. Almost nobody does this at a viewing. Do it in the bedroom rather than the living room.
• Then open them again.You are buying both states, and in the shoulder seasons you will want the windows open. That is when the flat’s real noise level shows up.
• Which way does the bedroom face? A flat can have a quiet bedroom and a loud living room, and that is a perfectly good flat. A bedroom facing an arterial is a different proposition however nice the living room is.
• Air conditioning.Look at the outdoor units, yours and the neighbours’. A condenser bracketed outside your bedroom window runs all night in summer.
• Lift, water pump and generator. Ask where the pump is. In small buildings it is often on the roof or in the stairwell, and it cycles at night.
• Look up for a loudspeaker on the building, on the corner, or on the pole outside.
• Walk the alley to its end. Find out what is at the other end of it, because that is what will be driving past you. A through-alley and a dead-end alley are different products.

What to ask the landlord, in words that get a real answer

Do not ask whether it is quiet. Everyone says yes. Ask questions with a factual answer that can be checked afterwards.

• Which of the neighbouring buildings has been rebuilt in the last two years, and is any building work planned on this street?
• Is there a ward loudspeaker on this building or on the one next door?
• What time does the family downstairs open, and what do they do? Ground floors in Hanoi are usually businesses, and a café opening at 6am, a metalworking shop and a restaurant closing at 11pm are three different neighbours.
• Has anyone in this building complained about noise before?
• Who was the previous tenant, and why did they leave?
• Can I have a viewing at seven in the morning? The answer to this one is informative whatever it is.

Get it into the contract, or accept that you have not dealt with it

A verbal reassurance about noise is worth nothing at the point you have a problem. If noise is a priority for you, the things worth writing down are the break clause and its notice period, and any specific commitment the landlord has made: that the ground floor will not be let as a workshop, that the building work next door is finished.

Nest cannot guarantee you a quiet flat and neither can anyone else. What you can do is stop discovering the problem after you have paid a deposit.

The one thing you cannot check

You cannot check your future neighbours. A quiet street can acquire a speaker in a week. Nothing in this guide protects against that, and any agent who tells you otherwise is selling. What you can do is weight your decision towards the things that are structural and permanent: floor height, which way the bedroom faces, the width of the road, whether there is a fixed overnight source nearby, and the quality of the windows. Those do not change. Your neighbours might.

What decides whether a flat is quiet

Roughly in order, and none of this is a measurement. It is where we would look first, and why.

• Alley or arterial, which is bigger than the district.Hanoi’s ngõ and ngách alleys are usually quieter than the road they open off, because through traffic cannot use them and the buildings shield each other. The trade is real and worth stating: an alley puts you closer to your neighbours. You gain traffic quiet and you lose distance from domestic noise and from ground-floor businesses.
• Floor height. Traffic noise falls away with height. Higher floors trade street noise for wind, for the lift, and in some buildings for the water pump and the plant on the roof.
• What the bedroom faces. Street-facing against courtyard-facing is often a bigger difference than moving building, and many Hanoi buildings have both. Ask specifically.
• What is fixed nearby. A wholesale market, a school, a hospital, a bus route. These are permanent, they have timetables, and you can find them on a map before you view.
• The neighbours. Unknowable, and the reason to weight everything else.

Quiet is not a district-level property. Tây Hồ contains both narrow lakeside lanes and main roads carrying real traffic, within a few hundred metres of each other. Anyone selling you a district as the quiet one is not describing Hanoi.

Being straight about our own streets

We list homes on streets with known overnight noise sources, and we would rather tell you than have you find out. If you are looking at a flat on or just off Âu Cơ, the Quảng An flower market at number 236 trades overnight, roughly eleven at night to dawn, busiest around two to three in the morning. That is a fact about your night. How much it matters depends almost entirely on your floor, your facing and your windows, and the only way to find out which sort of person you are is to go and stand there at two in the morning before you sign.

We will not publish a decibel figure for any Hanoi street. We have not measured one and we could not find anybody who has. If an agent quotes you decibels for a Hanoi street, ask them where the number came from.

We also will not tell you that a street is quiet. We can tell you what fixed sources sit near it and when they run, because that is checkable. Whether it is quiet is a judgement you should make standing on it, at an hour of your choosing.

What a complaint actually achieves

Call the ward police. That is the route. They record the case, check it, and handle it. Since December 2025 they can do that at any hour without a meter.

The decree itself names the emergency and nuisance numbers: 111, 113, 114 and 115. 113 is the police.

Useful evidence is audio or video recordings, verification reports, and statements from neighbouring households, showing the time, the place and the degree of impact. Start recording early. Recordings cost nothing and cannot be made retrospectively.

A sensible order of operations. Talk to the landlord first, because they have a relationship on the street and you do not. Then the building management, if there is one. Then the ward police.

And the part an agent will not tell you

• The decree does not define how loud is too loud, so an officer is assessing context, timing and frequency, and the complaints of surrounding residents, rather than reading an instrument.
• Enforcement was not transformed overnight, and what evidence we have is from Ho Chi Minh City rather than Hanoi. A week after the decree took effect, Vietnamese press interviewing residents in Ho Chi Minh City found karaoke continuing, no dedicated hotline, no regular patrols, and no way of finding out what had happened to a complaint. We could not find equivalent reporting for Hanoi, so we are not going to tell you how it is going here.
• The concern residents raised most was not the fine. It was retaliation. Several said confidentiality for the person complaining was essential if the law was to work. That is a reasonable thing to weigh, particularly if the neighbour is also your landlord’s friend.
• No enforcement figures have been published that we could find, for Hanoi or nationally. Nobody can tell you what proportion of noise complaints ends in a fine, because the number does not appear to be public.

So the honest position. The law is better than it was, and a complaint at three in the afternoon is now a real complaint rather than one that gets sent away until ten. Whether it is acted on where you live depends on your ward, and you should not sign a lease on the assumption that a complaint will fix a bad neighbour.

Where these facts come from

Every factual claim above came from one of these. They are named rather than linked because we would rather you found the document yourself than took our word for its address. Where we could not read a document, that is said too.

• Nghị định 282/2025/NĐ-CP, the primary text, as published in the Official Gazette (Công Báo), numbers 1583 and 1584 of 17 November 2025. Articles 8 and 9 are the ones quoted above.
• Nghị định 45/2022/NĐ-CP, on penalties for environmental offences, which is where the large noise fines and the meter requirement live.
• QCVN 26:2010/BTNMT, the superseded national noise standard, issued under Circular 39/2010/TT-BTNMT. Read in full.
• QCVN 26:2025/BNNMT, issued under Circular 01/2025/TT-BNNMT. We have not read this one, which is why no figure from it appears above.
• Tuổi Trẻ News, four reports published between 16 and 23 December 2025 on how the new decree is applied, what evidence is needed, the criticism of it, and what residents in Ho Chi Minh City were experiencing a week after it took effect.
• Thanh Niên, 25 August 2022, on ward officials in Ho Chi Minh City having no certified sound meter.
• An Ninh Thủ Đô, the Hanoi police paper, 27 July 2022, on the ward loudspeaker rules and the Department of Information and Communications position that the system was never abolished.
• Resolution 1656/NQ-UBTVQH15of 16 June 2025, on the reorganisation of Hanoi’s commune and ward units from 526 to 126 with effect from 1 July 2025.
• Public discussion on r/hanoi and r/VietNam, quoted with the date of each post and the size of the sweep it came from.

Looking for somewhere yourself?

An advisor can tell you what sits around a specific building and at what hours, and can arrange a viewing at an hour that actually tells you something. Asking for a seven o’clock viewing is a reasonable request and we will make it for you.