A newsletter a year ago advised residents that if there was a fire they should initially stay in their homes.
Hundreds of others who escaped the flames have still lost their homes and all of their belongings, but Catholic parishes in the surrounding area have quickly begun receiving donations of food, clothes, and water to be distributed.
One woman who tried to exit the building with her six children was not as lucky, witnesses said.
London Fire Brigade said it had rescued 65 people as flames engulfed the block.
"These will be matters for the scientists and the engineers.to find out exactly how the fire started, why it spread so quickly and what could have been done to prevent it", Fitzpatrick told Sky News. "In my 29 years of career as a firefighter, I have never ever seen anything of this scale".
New front doors in each apartment could withstand a fire for up to 30 minutes, "which gives plenty of time for the fire brigade to arrive", the newsletter said.
Jamie Oliver has been stepping up and helping the victims of the Grenfell Tower fire in West London.
Michael Paramasivan, who was in his seventh floor flat with girlfriend Hannah West, 23, and her daughter Thea, five, said: "If we'd listened to them and stayed in the flat we'd have perished".
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Damian Collins, former head of the Grenfell Tower Residents' Association, said residents had complained to the local council over the handling of a major refurbishment of the building completed a year ago.
A 8.7 million pound (US$11 million) refurbishment of the block was carried out by construction company Rydon and completed in July 2016. Some reports also suggest that the Muslims living in the neighbourhood had alerted the fire brigade officials. "She seemed calm", he said of his relative. "But I think what's happened is they're not understanding that this fire has spread all around the building", said one resident, speaking to the BBC.
"We pray for all the residents of the Grenfell Tower". In a series of blog posts, the group raised concerns about testing and maintenance of fire-fighting equipment and blocked emergency access to the site. We are in the Westfield just around the corner.
Campaigners for residents of the London tower block spoke angrily about long-standing fire safety concerns, saying they were ignored because the community was not rich.
He said there were also faults in the heating and lighting systems, and 90 per cent of residents had signed a petition in 2015 that was ignored.
The Health and Safety Executive, the police and the fire service are now expected to launch a large-scale investigation into the safety of the building and whether regulations were complied with.
London Mayor Sadiq Khan said many questions now need to be answered about safety for the scores of tower blocks around the British capital.
Prime Minister Theresa May was said to be "deeply saddened by the tragic loss of life" and newly appointed police and fire minister Nick Hurd will chair a meeting of the Civil Contingencies Secretariat to co-ordinate the response.