The balcony of a four-storey building collapsed in Bhayander in Thane district on Tuesday morning after which its residents were shifted to a nearby school as a precautionary measure, a civic official said.

Mira Bhayander Municipal Corporation Commissioner Dilip Dhole said the building, in Ganesh Galli in the township, was 35 years old and 39 families were staying in it while four to five flats were empty.