To report a building in Chennai that looks ready to fall, call the Greater Chennai Corporation on 1913 and ask for the complaint to go to the zonal engineer. The number is listed on every page of the Corporation’s site, and at its 14 October monsoon review the Corporation said complaints through 1913 and its social media handles would be acted on immediately, with a 24-hour control room at headquarters and a war room in each zone (GCC press release). If masonry is already falling or someone is trapped, call 101 or 112 first.
The northeast monsoon set in on 15 October, and the first heavy spells are when weak parapets, sunshades and compound walls tend to give way. This guide explains the warning signs, who is responsible and how to get a dangerous structure looked at before it fails.
Why this matters this monsoon
Several recent incidents show the pattern. In July 2026 a 35-year-old woman fell from the third floor of a 40-year-old Tamil Nadu Urban Habitat Development Board (TNUHDB) tenement in SM Nagar, Teynampet, when a balcony parapet gave way while she leaned on it, DT Next reported. In early October, residents of the 1,536-house TNUHDB colony at Srinivasapuram, Pattinapakkam, described collapsed ceilings, cracked walls and damaged staircases; the board had moved 197 of 224 families identified for shifting, DT Next reported.
Demolition carries its own risk. In August 2025 a 25-year-old worker died in Ayanavaram when a wall collapsed on him as he broke down a first-floor room of an old house (DT Next).
Warning signs to look for
- wide or growing cracks in beams, columns or load-bearing walls, especially diagonal ones;
- exposed, rusted steel bars in the ceiling, sunshades or balcony slabs, with concrete flaking off;
- a parapet, balcony rail or compound wall that leans, rocks or has lost mortar;
- persistent seepage through the roof slab, which speeds up rusting of the steel;
- doors and windows that suddenly jam, or a floor that has begun to sag;
- plants rooting in the walls of old buildings, a common sight in George Town and Triplicane.
One sign alone may be a repair job. Several together, in a building more than a few decades old, need a structural engineer’s assessment.
Who is responsible
Private buildings: the owner is responsible for keeping a building safe. For a privately owned house or block, the Corporation’s zonal office handles demolition permits, and the town planning wing’s checklist for new permits requires a structural stability certificate signed by the owner, architect and structural engineer, the town planning page says. Hire a registered structural engineer for an assessment before the rains, and get any demolition done under an approved contractor with proper permission.
Apartments: if an old block is unsafe, Section 13 of the Tamil Nadu Apartment Ownership Act, 2022 allows redevelopment when the planning authority certifies the building is ruinous or a threat to the safety of occupants, even without the usual two-thirds owner consent.
Government tenements: TNUHDB blocks are the board’s responsibility. Residents should report damage in writing to the board’s division office and keep a copy, and use 1913 for any immediate public hazard.
Schools: in September 2026 the School Education Department told schools to cordon off damaged buildings and report structures that need demolition to the district administration (DT Next). Parents who see an unsafe classroom or wall can raise it with the head teacher in writing.
How to report a dangerous structure
- Photograph it from a safe distance, with something showing the date and location.
- Call 1913 or use the Namma Chennai app, giving the door number, street, ward and a landmark. Note the complaint number.
- Write to the zonal office of your Corporation zone, attaching the photos, if the complaint is not acted on in a few days.
- Tell the neighbours and the owner. Keep children and parked vehicles away from the side that may fall.
- Call 101 or 112 if a collapse has begun. The fire service handles rescue; the district helpline list gives 101 for fire control and 1077 for disasters.
Tenants living in an unsafe building have rights against the landlord. For disputes over repairs, eviction or compensation, consult a lawyer or the legal services authority.
Quick answers
How do I report a dangerous building in Chennai?
Call the Corporation on 1913 or use the Namma Chennai app, and follow up in writing with the zonal office.
Who handles demolition permission for a private house?
The Corporation’s zonal office for your area.
What if a building is collapsing right now?
Call 101 or 112 and move people away.
Can an unsafe apartment block be redeveloped without all owners agreeing?
Yes, if the planning authority certifies it is ruinous or unsafe, under Section 13 of the 2022 Act.
Information checked against official sources on 18 October 2026. Fees, dates and rules can change; confirm on the linked official pages before acting.
Sources
- Town Planning department (Greater Chennai Corporation)
- Buildings department (Greater Chennai Corporation)
- Northeast monsoon review meeting, press release, 14 October 2026 (Greater Chennai Corporation)
- Tamil Nadu Apartment Ownership Act, 2022 (India Code)
- Over 1,500 homes in Srinivasapuram TNUHDB falling apart (DT Next)
- Woman falls from 3rd floor of TNUHDB flat as parapet collapses (DT Next)
- Ayanavaram: worker dies as wall collapses during demolition (DT Next)
- Tamil Nadu directs schools to step up safety measures (DT Next)
- Helpline numbers (Chennai District Administration)
