Jefferson Rodrigues, who runs a small inn near the club, said he had reached a 15-year-old player he had befriended.
Reuters said the club spent 23 million reais (around $6 million) to renovate the training center previous year. Violence has worsened in Falled-Fogueteiro, where two rival drug trafficking groups fight one another, the report said.
'He never told me anything bad about the training centre, ' Mr Rodriguez said.
The fire brigade said in a statement that the center was "in the process of" meeting fire safety standards but did not yet have a certificate of approval.
Chapecoense, who lost 22 players in a plane crash in 2016, said on Twitter: 'We are extremely sad and shaken by the news of the fire'.
Neither club responded to telephone calls and emails.
"The majority of [the team] stayed, my friends stayed [at the facility]", he said.
Brazilian clubs often provide accommodations to players from outside the city, although local sports columnist Juca Kfouri told The New York Times that living conditions are historically "atrocious".