Plans for the soon-to-be re-opened Yarl's Wood detention centre in Bedfordshire have been shown to local councillors.
The blaze destroyed half the centre
From September, 60 female detainees will be held in the part of the building that did not burn down in last year's riot.
The centre will then be expanded to house more women and families.
The Home Office has agreed to install sprinklers and strengthen some internal walls.
Bedfordshire County councillors have now had a chance to look at the plans.
County councillors have also urged the Home Office to consider the results of its own report into the riot which includes a call for regular fire drills.
Councillor Roger Gwynne Jones, portfolio holder for resource stewardship, said: "The community of Bedfordshire deserves to have these issues fully addressed."
'One-man fighting machine'
On Friday, Nigerian Henry Momodou, 39, and Albanian Behar Limani, 27, were jailed for
four years each after they were convicted of violent disorder.
Previously, two other men also involved in the incident were jailed.
A 29-year-old Algerian, Ahmed Aliaine, who was described as a "leading player" and a "one-man fighting machine", admitted violent disorder and received 18 months.
Moroccan Naseem Mosstaffa, 25, pleaded guilty to affray and was jailed for three months.
The local MP, Alistair Burt, has also called for a public inquiry into the riot.