Mumbai is rebuilding itself at a pace few cities match: redevelopment of old buildings, new towers, metro lines and road works. For people living next door, that often means dust on every surface, drilling at midnight, debris on the footpath and cracks in their own walls. The rules that builders must follow are clear, and residents have real ways to enforce them.
This guide covers the pollution and noise rules for construction sites in Mumbai, how to check whether a building has permission at all, and the steps you can take if a site is not following the rules.
The BMC’s 28-point rules for construction sites
The BMC first issued its air pollution mitigation guidelines in October 2023 and enforces them through its Winter Air Pollution Mitigation and Enforcement Action Plan, 2026. The main requirements are:
| Requirement | What the site must do |
|---|---|
| Barricading | Tin or metal sheets at least 35 feet high around the site; at least 25 feet for sites smaller than one acre |
| Covering the building | Buildings under construction enclosed in green cloth, jute sheets or tarpaulin; buildings being demolished covered from top to bottom |
| Dust suppression | Water sprinklers or anti-smog guns, especially while loading and unloading material |
| Cutting and drilling | Grinding, cutting, drilling and sawing done with continuous water spraying or dust extraction |
| Vehicles | Trucks fully covered, wheels washed before leaving, valid pollution certificates |
| Debris | Construction and demolition waste taken only to BMC-designated sites; not dumped on roads or footpaths |
| Monitoring | Sensor-based air quality monitors connected to the BMC, and CCTV along the site boundary |
| Workers | Protective equipment for workers; no burning of wood for cooking or heating on site |
For 2026 the BMC has deployed 76 ward-level squads, each required to inspect at least two construction sites a day. Violations can lead to a show cause notice, a stop-work notice or sealing. In October 2026 the BMC issued a stop-work notice and a fine to a site in Andheri West for uncovered material, debris on the road, uncovered cutting and drilling, and no tyre-washing facility.
Noise: no construction at night
Under the Noise Pollution (Regulation and Control) Rules, 2000 and directions followed by the Mumbai police, construction work is not permitted between 10 pm and 6 am. Residential areas have noise limits of 55 decibels by day and 45 decibels at night. The Mumbai police have booked developers for working after 10 pm, and the Bombay High Court has in the past restricted noisy work at specific sites to daytime hours.
Night-time noise is a police matter. Call 112 or the local police station while the noise is happening, and follow up with a written complaint giving the date, time and address.
Does the building have permission at all?
Pollution rules apply to every site, but some construction should not be happening in the first place. A new building or a major addition needs approvals from the BMC, typically starting with an Intimation of Disapproval (IOD) and a Commencement Certificate (CC) before work begins. A project with more than eight flats, or on land above 500 square metres, must usually also be registered with MahaRERA.
- Ask the developer to display the approval details at the site, as is common practice.
- Check the project on the MahaRERA website if it is a registered project.
- File an RTI application with the ward office asking for copies of the IOD, CC and approved plans for the address.
If there is no permission, the BMC can act against the unauthorised construction under the Mumbai Municipal Corporation Act, 1888 and the Maharashtra Regional and Town Planning Act, 1966. See also unauthorised buildings and the registration ban.
What you can do if a site is breaking the rules
- Record it. Take dated photos and videos of dust, missing barricades, debris on the road or night work. Note the times. Keep a simple log.
- Complain to the BMC ward office. Write to the Assistant Commissioner of the ward, describe the violation, attach the photos, and get your copy stamped with the inward number. A sample BMC complaint format is here.
- Call the police for noise at night. Use 112 or the police station, then submit a written complaint.
- Complain to the Maharashtra Pollution Control Board if the dust or noise continues, especially for large projects.
- Use RTI to ask what action was taken on your complaint, and for copies of the site’s permissions.
- Act together. A complaint signed by the housing society or several neighbours carries more weight.
- Go to court if nothing works. Residents can file a civil suit for nuisance or damage to their property, or approach the High Court where the authorities fail to act. The Bombay High Court has been hearing petitions on Mumbai’s air pollution since 2023 and has appointed a committee to inspect construction sites.
If construction next door damages your building
Cracks, leakage or weakened walls caused by excavation or piling next door should be recorded immediately with photos and, ideally, a report from a structural engineer. Write to the developer and the ward office, and keep copies. Damage to property can be claimed from the developer through a civil suit. If your own building is declared unsafe, see BMC dangerous building notices.
Common questions
Can construction happen on Sundays?
The noise rules restrict the hours, not the days. Some directions from the police have restricted noisy piling work on Sundays, so check with your local police station.
Who do I complain to about dust from a metro or road project?
Government projects must follow the same pollution rules. Complain to the BMC ward office and to the agency carrying out the work, and to the Maharashtra Pollution Control Board.
Will the BMC tell me what action it took?
Ask for it in writing. If there is no reply, an RTI application will get you the action taken report.
Can I stop the construction completely?
The BMC can stop work until the site complies. Stopping a project with valid permission permanently is rare; the usual result is that the site is made to follow the rules.
Sources
- BMC, Guidelines for Air Pollution Mitigation, dated 25 October 2023 (BMC website)
- BMC enforces 28-point guidelines, deploys 76 squads, October 2026 (Mumbai Live)
- BMC stop-work notice in Andheri West, October 2026 (Aryan Age)
- Mumbai police: no construction between 10 pm and 6 am (Mumbai Live)
- The Noise Pollution (Regulation and Control) Rules, 2000 (text)
This guide is general information. What can be done about a particular site depends on its permissions and the facts.