Victoria will ban the use of flammable building cladding as part of its response to the fire that killed 71 people in London's Grenfell Tower last year.

The ban will also include the aluminium panels that caused a fire to engulf the Lacrosse apartment building in Melbourne's Docklands, nearly three years ago.

The government has also confirmed that the number of buildings in the state at risk from their cladding material had been significantly overstated.

Planning Minister Richard Wynne. Credit:Jesse Marlow

Of the 1369 structures in Victoria first thought to be at risk in the aftermath of the Grenfell tragedy, 608 have not begun construction, and a further 188 are only partially built, Planning Minister Richard Wynne's office confirmed on Friday.