Karim Mussilhy from the Grenfell United group welcomed the information
The authorities has agreed that two consultants will sit with the choose investigating the Grenfell Tower hearth, following stress from campaigners.
They had referred to as for a numerous panel to supervise proceedings, saying the inquiry risked being a "whitewash".
Theresa May, who had earlier rejected requires a panel, mentioned the hearings would now have the "breadth of expertise and variety of experience".
The blaze in west London on 14 June final yr killed 71 folks.
The first section of Judge Sir Martin Moore-Bick's inquiry will begin taking proof on 21 May.
Up to now he had been helped by an authorized crew, civil servants and three assessors in reviewing and figuring out paperwork and related materials.
The hearings will look at the outbreak of the blaze and listen to from firefighters, survivors and skilled witnesses.
The new panel will be part of the second section of the inquiry, which isn't anticipated to start till after December.
It will take a look at areas together with the modifications made to Grenfell Tower earlier than the hearth, and the connection between the completely different organizations answerable for security, together with Kensington and Chelsea Council.
'Impartial and impartial'
Survivors' teams had been urging the prime minister to convey in a panel to assist oversee the hearings.
More than 156,000 folks signed a petition calling for people from a vary of backgrounds to take a seat alongside Sir Martin.
The Grenfell United group, which represents survivors and the bereaved, mentioned the change in the federal government's stance had come about after numerous laborious work.
It mentioned it will imply the inquiry might "get to the reality of why our neighborhood was not listened to once we raised considerations".
Adel Chaoui, the Grenfell United spokesman who misplaced 4 relations, mentioned survivors have been "relieved" by the announcement.
"This panel implies that the inquiry could have the experience it must get to the reality of why our neighborhood was not listened to once we raised considerations, why such a harmful refurbishment may very well be allowed to go forward and all the problems that led as much as that terrible evening," he added.
Karim Mussilhy, who misplaced an uncle, mentioned: "We're disillusioned that we have needed to undergo all of this to get the prime minister to hear. But she has listened and we thank her for taking our consideration significantly."
Skills and experience
Mrs May had beforehand rejected calls for extra panel members, though she mentioned this may very well be reviewed.
Mrs May mentioned she needed the panel to be "related to the broad vary of points to be thought-about in section two, and to greatest serve the growing scale and complexity of the work going forwards".
In a letter to Sir Martin, she mentioned: "I hope this resolution will present reassurance to victims and the survivors of the hearth, the area people, and members of Grenfell United, who've been clear... that you're the correct particular person to steer this inquiry however who additionally consider that, in section two, it will be useful to have further panel members".
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Mrs May mentioned she would write to Sir Martin once more "as soon as appropriate panel members have been recognized".
The announcement got here the day a group of individuals affected by the hearth in North Kensington have been invited to talk to Mrs May at Downing Street.
Among them was artist Damel Carayol, who misplaced his niece in the hearth. He introduced Mrs May with a print of his portray entitled Grenfell Tower: Eyesore!! Final Straw.
Downing Street mentioned the print can be displayed in No 10.
MPs may even maintain a debate in regards to the Grenfell hearth in the Commons on Monday.
The Labour MP for Kensington, Emma Dent Coad, mentioned Parliament would debate the appointments and the inquiry and he or she deliberate to hunt clarification on the way in which it will function.
How the requires an inquiry panel grew louder
29 June 2017: Retired Court of Appeal choose Sir Martin Moore-Bick is chosen to steer the general public inquiry into the Grenfell Tower hearth
7 July 2017: Sir Martin faces offended residents and survivors in a three-hour lengthy assembly, amid requires him to step down
15 August 2017: The phrases of reference for the inquiry are printed
14 September 2017: Sir Martin opens the inquiry, promising it's going to present solutions to how the catastrophe might have occurred in 21st Century Londonhowever faces criticism for refusing to nominate a survivor to an advisory panel that may take into account the proof with him
1 December 2017: Campaigners begin petition calling for Theresa May to intervene in the inquiry and appoint a numerous panel
15 February 2018: Campaign group Justice four Grenfell drives three giant billboards by London
22 February 2018: Grime star Stormzy makes use of his Brit efficiency to take a swipe on the prime minister over the federal government's assist for Grenfell. Downing Street emphasises the £58m it has dedicated to these affected
21 March 2018: Procedures for the inquiry are laid out at listening to in central London
11 May 2018: Theresa May agrees to nominate two consultants to assist oversee the second section of the inquiry following stress from victims' households