Dame Judith Hackitt has raised concerns the far-reaching change she called for in her review of building regulation and fire safety following the Grenfell fire two years ago will never be delivered.

Writing in a briefing paper for property manager FirstPort, she said: “It’s really important we keep this dialogue going because the longer we go post-Grenfell, the more concerned I become that we will allow this to fall away and we will not respond appropriately to change this broken system or ours.”

In its response to the Hackitt review in December, seven months after the report was published, the government promised to implement her proposals in full.

But almost all measures were to be subject to a consultation this spring – which the housing department has so far provided no updates on.