The founder of Studio E Architects has told the Grenfell Tower Inquiry that his practice had no idea the nation’s regulatory system for buildings and building products was unfit for purpose when it was working on the tragic west London refurb project.

After giving evidence before Martin Moore-Bick’s panel for more than three hours yesterday, Andrzej Kuszell was on the verge of tears when he told the hearing his practice had wanted nothing but the best for Grenfell Tower when it was appointed to refurbish the block.

Addressing the public gallery – which included representatives of the bereaved, survivors and residents from the 2017 tragedy – Kuszell said: “I’m really, really sorry for all of you.”

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