Secondhand smoke from neighbours and corridors in Singapore

Every r/askSingapore secondhand-smoke thread contains the same defeated sentence: "NEA said they cannot do anything because he is smoking in his own home." For private indoor smoking that is legally accurate. It also isn't the end of the road, because there's a real playbook underneath it. It just doesn't start with NEA.

Corridor smoke is the opposite case. Smoking in the common corridor, lift, lobby, void deck or stairwell of a residential building is an offence, and that one is NEA's to enforce. Plenty of real cases are a mix of the two, like the neighbour who steps out of the flat to smoke at their own door, so it pays to know both routes.

Lawful smoking versus an actual breach

The line that decides everything is whether the smoking happened somewhere a rule already prohibits it. NEA's list of prohibited places covers any common property within a residential building, and names common corridors, lifts, lobbies, void decks and stairwells. Function pavilions in residential estates, playgrounds and exercise areas, and swimming pools plus the five metres around them are on the list too. Residential homes and open spaces in residential estates are on the allowed list, which is why the neighbour smoking on open ground past the void deck is usually within his rights.

Smoking in a prohibited place carries a $200 composition fine, or a fine of up to $1,000 if it goes to court. Inside the neighbour's own flat there's nothing for anyone to enforce, which is exactly why the first step there is mitigation and mediation rather than a complaint.

Reporting smoking in HDB corridors, stairwells and void decks

NEA enforces the smoking ban, so your report needs to reach NEA. There are two ways in.

• NEA directly. The myENV app, NEA's online feedback form, or the hotline on 6225 5632.
• OneService. The app sends your case to the right Town Council or agency, NEA included, and you don't have to work out which one is responsible.

OneService logs you in with Singpass. If you haven't got Singpass set up yet, the OneService chatbot on WhatsApp or Telegram does the same job (first week: SIM, Singpass and bank). Every case needs at least one photo, you can attach up to three, and the app doesn't take video. You follow the case and the agency's reply in the app's Report section. It's the same reporting muscle you'd use to pin a dengue breeding site, which is a decent argument for installing it in week one with the rest of the apps that matter.

An evidence pack that actually routes

1. Time and location. Block, floor, and which staircase, corridor stretch or void-deck bay.
2. The pattern. A log over several nights beats one furious message, because a predictable time and place is something an agency can act on. NEA has told Parliament that it can't respond immediately to every report, but that where smoking feedback about a block persists, it puts that block under surveillance, including with thermal cameras.
3. A photo of the spot, and of the act if you can take one without a confrontation. Not a collage of faces bound for a Telegram group. Keep any video you have. OneService won't take it, but video recordings are on the list of evidence for a tribunal claim.
4. One case, filed once, with the exact location. You can't edit a OneService case after it's in, so note the case ID. If the smoking comes back, file a new case and quote the old ID in the details.
5. Optionally, one polite note to the block WhatsApp. Once. Then stop arguing.

The smoker doesn't have to live in your block. A visitor on the staircase breaks the same rule, and a report about a place and a time doesn't need a name. Don't stake out strangers in a stairwell at 1am to get one.

OneService is not an emergency line. If it's ever a fire, call 995. If it turns violent or threatening, call 999 (emergencies).

HDB and condo run on different rails

In an HDB block, common-area smoking goes to NEA or OneService as above, while drift from inside a private flat goes into the mediation stack instead. Work out which one you've got before you file anything. A Town Council can do something about a void-deck bench, but what happens inside someone else's flat isn't theirs to fix, however far the smoke travels, and a misrouted report just buys you a polite closure notice.

In a condo, the corridors, lifts, lobbies, playground and pool are still NEA-prohibited places. NEA's own guidance, though, is to report violations to the management whenever possible. So start with the MA: ask for a letter to the unit citing the by-laws or house rules, and go to NEA yourself if management won't deal with it. The prescribed strata by-laws also bar occupiers from throwing rubbish onto common property without the MCST's written approval, which covers butts flicked into the corridor or onto the podium. How those by-laws are made and changed is in condo MCST by-laws and AGMs.

Balcony-to-balcony drift is the genuinely hard case in a condo, and it behaves much like the problems covered in condo noise and MCST. Don't run it the other way round either. Condo by-laws bind that condo's own owners and occupiers, so quoting them at an HDB corridor gets you nowhere.

Butts thrown from height

Cigarette ends thrown from a flat into a public place below count as high-rise littering, which NEA treats as a serious offence. Report it through OneService or NEA with photos of where they land and which stack they seem to come from.

Since 1 July 2023, when litter thrown from a residential flat lands in a public place, the registered owners are presumed to have committed the offence, or the tenants where the whole flat is leased. Court fines run up to $2,000 for a first conviction, $4,000 for a second and $10,000 for a third or later one, and the court can add a Corrective Work Order. If you rent a whole flat, that presumption points at you, so the house rule for any smoking guest on your balcony is an ashtray, not the ledge.

Butts landing in your own service yard or on your ledge are a neighbour matter rather than a public-cleanliness one. Littering at or near your home is one of the judiciary's listed examples for a tribunal claim, so log it with photos and dates.

HDB's own being a good neighbour pages cover killer litter and neighbour disputes if you want something official to put in the block chat.

Mitigate first, escalate second

Close your windows around the smoker's schedule, and run an exhaust fan or a purifier in the affected room. Send one polite written note, and date it. Then stop, because repeated corridor confrontations make the mediation stage harder and the living situation worse. Keep a log of dates, times, and where the smoke actually gets in, whether that's the service yard, a bedroom window or the bathroom vent.

If you have young children or someone in the house with asthma, this feels urgent, and emotionally it is. It is still worth being clear-eyed: it doesn't create a statutory indoor-smoking ban next door. What it does do is make the log you are keeping matter more later.

Mediation, Mediation Directions and the tribunal

CMC mediation is the middle step the system was designed around. It's free, "cigarette smoke" is on the CMC's own list of neighbour disputes it handles, and a session usually takes two to four hours. Apply online or through the MinLaw Enquiry Line on 1800 2255 529, and have the neighbour's residential address ready. Voluntary mediation only goes ahead if both households agree to take part.

That used to be the dead end. Since 1 September 2026, Mediation Directions apply nationwide. If your neighbour turns down or ignores a mediation invitation, authorised officers can order both households to attend mediation at the CMC: HDB or the People's Association (PA) in HDB estates, and PA in private estates. Attendance is compulsory, and failing to turn up without a reasonable excuse is an offence with a fine of up to $1,500. It only applies to neighbours in the same building or within 100 metres of each other, and the agency decides whether to issue one, not you. To get there, raise the dispute with HDB or PA, or through OneService.

The Community Relations Unit, which also went nationwide on 1 September 2026, is for severe noise and hoarding cases, so don't expect it to take a smoke complaint. If mediation does produce an agreement and both sides consent, it can be registered as a CDRT order, which gives you a quicker legal route if the neighbour breaks it.

The Community Disputes Resolution Tribunals (CDRT) are for unreasonable interference, and excessive "noise, smell, smoke, light or vibration" is the first example on the judiciary's eligibility page. Expect cost, expect time, and expect real evidence standards.

You enter each incident with its date, time and details, and upload evidence for each one as a PDF. That's why the log matters: bring one covering weeks, not one memorably bad evening. If you can't find out the neighbour's full name, the tribunal may let you file against the occupier of the unit and direct you to find the name during the case. The judiciary's own line is that a claim should always be the last option.

If you rent, copy your landlord in as you go. Quiet enjoyment is a written-notice conversation with your landlord rather than a rent strike, and withholding rent turns your neighbour's behaviour into your breach (landlord entry and quiet enjoyment).

Before you sign a lease

If smoke sensitivity is a hard constraint for your household, walk the corridor and staircase at night before you sign the LOI rather than after (LOI and tenancy agreement). Check which of your windows face the neighbours' service yards and kitchen windows while you're there. Ten minutes then is worth a year of complaints later.

Older, denser towns such as Geylang, Toa Payoh and Ang Mo Kio have blocks set close together, which is where service-yard drift is hardest to escape. Family towns like Bukit Panjang and Boon Lay aren't immune either, not if your windows face the prevailing breeze.

Smoke problems on other tracks

Your neighbour's cigarettes are not your immigration problem. Your vaporiser is. Vaping is illegal in Singapore, and what it can do to a pass is set out in vaping and tobacco laws. Haze weeks stack outdoor PSI stress on top of the balcony smoke, which is covered in haze preparedness. Smoke from a precinct barbecue pit is a different conversation again, covered in void deck and common-property disputes.