Campaigners are calling for housing developments in the borough to be halted after the Mayor of London “refused” to review the fire-safety of two proposed tower blocks.

Sadiq Khan approved plans to build 186 homes in March, of which 41 per cent will be affordable, in Palmerston Road, Wealdstone.

Despite Harrow Council initially turning down the application, two tower blocks will be constructed, with one reaching 17 storeys and the other 15 after they were “called in” by Mr Khan.

During Mayor’s Question Time on June 22, Conservative London Assembly member Susan Hall asked him to “urgently review” the development to ensure there was no fire safety risk following the Grenfell Tower tragedy in Kensington last month, which killed at least 80 people.

Ms Hall says he “refused”, which has sparked concern among members of the Campaign for a Better Harrow Environment group.

Jane Galbraith, the secretary of Harrow Parks Forum and a member of the campaign group, believes a “higher standard” of fire safety is now needed for present and future developments in the borough.

She said: “Housing is a continuous issue in Harrow and several developments are in progress, but have the specifications for these been checked to ensure they are up to standard - especially now that we know a higher standard is needed?

“Other developments are at the planning stage, how have the procedures been adapted to ensure the higher standard of fire safety?

“Or maybe all developments in Harrow should be stopped until fire-safety has been reviewed.”

During the meeting, Ms Hall asked for a re-evaluation over fears the tower application did not feature any plans for a sprinkler system.

Mr Khan replied that he was “surprised” by her question, as “the new buildings are much safer than the old ones and those refurbished”.

Speaking after the meeting, Ms Hall said: “The Mayor’s dismissal of genuine public concerns in the wake of such an appalling tragedy is astonishing.

“Not only did he point-blank refuse to even look again at the safety features on these tower blocks, his reasons for not doing so are entirely ill-informed.

“Londoners deserve a Mayor that will listen when legitimate fears about public safety are raised and I once again urge him to put residents’ minds at rest and review the safety of these blocks.”

A spokesperson for the Mayor of London said: “The fire safety of new developments is covered by government building regulations, which are enforced by local councils or approved contractors.

“The inclusion of sprinklers in new residential blocks of more than 30 metres in height became a legal requirement in 2007.

“The development in Palmerston Road in Wealdstone is subject to these regulations.”