Around 125 firefighters tackled the blaze in Elm Road, Wembley, last night (January 29).
The fire damaged half of the exterior of the building and all of its roof.
The London Fire Brigade says initial reports show cladding "was involved", though the cause is not known.
Barry has slammed a housing association that he says was “repeatedly warned” about a fire risk in a block of flats that was engulfed in flames.
You can read the full piece in the Brent and Kilburn Times here.