The deputy head of the Building Safety Regulator has blamed a lack of industry design expertise for contributing to ‘gateway 2’ delays as he admitted he had “underestimated” how hard the transition to the new regime would be for firms.

Tim Galloway, deputy director, building safety regime development and regulatory support, at the Health & Safety Executive, said he had assumed demonstrating fire and structural safety in higher risk schemes, including residential buildings above 18m, would be “something that [industry firms] would already be able to do”