BMC's C1 Dangerous Buildings List: What Owners and Tenants in Mumbai Should Do

BMC flagged 174 C1 buildings in Mumbai ahead of the 2026 monsoon. What the categories mean, how to check a building, and what owners and tenants should do.

Mumbai skyline with older buildings and new towers

Every year before the monsoon, BMC publishes a list of buildings it considers dangerous. For 2026, reports in May said BMC listed 174 buildings in the most serious category, C1, of which 72 had already been vacated. Across the wider Mumbai Metropolitan Region, MHADA and nine municipal corporations identified 18,072 unsafe buildings, including 827 described as extremely dangerous.

What the categories mean

Category	What it generally means
C1	Dangerous. To be vacated and demolished.
C2-A	Major structural repairs needed, with the building vacated.
C2-B	Major structural repairs needed, without vacating.
C3	Minor repairs needed.

How to check a building

BMC publishes the C1 list on its website by ward. The list dated 30 April 2026 is available on the BMC portal.
Ask the society for its most recent structural audit report. Older buildings are required to have periodic structural audits.
Look for visible warning signs: large cracks, exposed or rusted reinforcement, sagging slabs and persistent seepage.

A C1 notice is about safety first. Paperwork and rent come second.

If you're a tenant

Check whether your building appears on the list before renting, especially in older areas.
If a notice is issued, follow it. Your safety comes first.
Speak to your landlord about the deposit refund and notice terms in your leave and licence agreement.

If you're an owner or landlord

Make sure you receive society and BMC notices. If you live abroad, a local representative should get them too.
Commission or ask for a structural audit if one is due.
Don't let a tenant stay in a building that has been ordered vacated.
Understand the redevelopment route. Many C1 buildings move towards redevelopment. See our member's redevelopment checklist.

If you're buying

Check the building's category, its last structural audit and any BMC notices before you pay a token. A low price can reflect structural risk.

Frequently asked questions

How many C1 buildings did BMC list in 2026?

Reports in May 2026 said 174, with 72 already vacated.

Where can I see the list?

On the BMC (MCGM) portal, which publishes the C1 list by ward.

Related reading

Own a flat in an older building and need it inspected? Book a video call.

Sources

General information. Follow official notices and a structural engineer's advice.

Own a flat in Mumbai while living abroad?

TND Listings manages, sells and helps you buy property across Mumbai, Navi Mumbai and Thane, with one point of contact.

Chat on WhatsApp More articles

TND LISTINGS

TND Listings is a professional real estate brokerage company serving buyers, sellers, NRIs and Private Institutes. At TND Listings, you are number one. We believe in integrity, commitment to excellence, a professional attitude, and personalised care.

→

f X Ig in