Troubled Whipps Cross Hospital could undergo a £500 million redevelopment under new plans.

Barts Health NHS Trust, which runs the Leytonstone hospital, is preparing to submit a bid to completely overhaul the 100-year-old site.

The trust calculates plans to renovate aging buildings and ensure services are maintained while the local populations grows could cost more than half a billion pounds.

The report submitted to NHS Improvement will argue the redevelopment would be cheaper in the long run than ongoing maintenance work.

Barts Health chief executive, Alwen Williams, said: “We have a golden opportunity to improve the care and experience of local people.

“At a time when the NHS is looking for new and sustainable ways of providing care, we can lead the way in developing a health and care campus to benefit patients for years to come.”

The bid is being developed with the backing of NHS Waltham Forest Clinical Commissioning Group, Waltham Forest council and North East London NHS Foundation Trust.

Following a public meeting last October, the organisations are also setting up a group where residents will be able to have their say on proposals.

Whipps Cross has faced string of difficulties in recent years and was first placed into special measures in 2015.

Health watchdog the Care Quality Commission (CQC) deemed the hospital is still “inadequate” in a fresh report published in December.

The report found the hospital’s A&E department required improvement, with patients waiting more than double the 15-minute target time for an initial assessment.

End-of-life care was also judged to be poor, with inspectors noting they saw dying patients in visible pain who did not get help from staff.

The hospital did however, receive “good” ratings for its maternity and gynaecology services and its care of children and young people.

Barts Health said the report showed the hospital had made “significant progress” since previous CQC inspections.

However, Waltham Forest council hit out at the trust at the time findings were published, claiming improvement at the hospital had been too slow.

The local authority also called for the centre to be completely redeveloped in order to provide a better standard of care for patients.