This is when you can buy one of the newest flats at Park Hill in Sheffield

Phase two of the Grade II*-listed Brutalist estate’s overhaul will bring 195 new properties and 20,000 sq ft of commercial space.

Sales will start on Saturday, February 29, with the first residents expected to move in next year, summer 2021. Interest is likely to be high, as there is already a long waiting list.

The homes have been designed by Stirling Prize-winning architects Mikhail Riches and will include one, two and three-bed apartments and two-bedroom townhouses.

Meanwhile the mixed-use commercial space could be turned into a variety of offices and workspaces, as well as a new café or restaurant and terrace.

Park Hill, famous for its ‘streets in the sky’ wide enough to accommodate a milk float, was originally constructed in 1961 as a bold experiment in social housing.

By the 1980s, however, it had become a magnet for crime and vandalism – but English Heritage’s decision to make it Europe’s largest listed building in 1998 protected it from demolition.

The refurbishment, led by developer Urban Splash, began in 2007. Phase one is complete, comprising 260 homes, 33,000 sq ft of fully-occupied commercial space, a popular vegetarian café called South Street Kitchen and the Grace Owen Nursery.

Phase three will offer accommodation for more than 350 students, while the fourth element will involve the creation of a landmark gallery – one of the biggest contemporary art venues in the north of England – for the S1 Artspace group. Phase five, at the top end of South Street, is to be brought forward last.

Guy Ackernley, on behalf of the joint venture partners, said: “Our vision was to create a new mid-century quarter for Sheffield and we are well on the way to achieving this.

“Working with Mikhail Riches we have created a new style of living spaces that are slightly different in their configuration to those in phase one but also reverential to the original design and look.

“Anticipation and expectation is high given the attention now focused on Park Hill with its worldwide reputation and now a successful musical to its name, but we are confident we have delivered.”

The musical – Standing At The Sky’s Edge – was written by Richard Hawley and Chris Bush and had a successful run at the Crucible Theatre in 2019.

Mikhail Riches secured the job of designing phase two in 2016 following a six-way pitch.

Founding director Annalie Riches said: “Our phase looks at keeping more of the original fabric and upgrading it. We hope that the work being carried out by all involved in the various phases demonstrates it is possible to reuse buildings of this era.”

Earlier this month it emerged that Historic England had given Urban Splash a £500,000 grant to fund repairs to Park Hill’s important concrete structure, taking the total sum contributed by the heritage body towards the project to £900,000.