The men who built Meadowhall have been named as among Yorkshire's wealthiest people in the annual Sunday Times Rich List.
Brothers Eddie, 79, and Malcolm Healey, 72, are second on the county's list of top tycoons with a fortune of £1.48 BILLION - up £50 million on last year's total.
And fellow Sheffield businessman Paul Sykes has landed fifth spot in the rundown with an estimated wealth of £710 million - a rise of £20 million on 2016.
The Healey brothers have amassed their fortunes through retail parks and kitchens - and it was Meadowhall for which Eddie is best known.
It was originally derelict land when he bought it with fellow developer Paul Sykes. The completed retail centre, which opened in 1990 and was the largest shopping mall in the UK, was sold to British Land for £1.17bn in 1999. He made £420m from the sale.
He also developed the £500m Centro in Oberhausen, Germany which is Europe’s largest shopping centre and sold the Parkgate shopping complex in Rotherham for £260m. He has joined forces with Dave Whelan of JJB Sports to launch Soccer Domes, combining football-based leisure and retail ventures.
And the pair's West Retail Group, which includes Wren Kitchens and the electronics retailer Ebuyer, enjoyed a record year in 2015, with sales soaring to £446m
Eddie Healey spends much of his time in Barbados where he has a £17m home.
Holding the top spot in Yorkshire are Robert Miller and Princess Marie-Chantal and family with wealth estimated at £1.58bn.
Miller, 84 later this month, co-founded the Hong Kong-based Duty Free Shoppers (DFS) chain with Alan Parker in 1960, specialising in airport shops.
Doncaster business tycoons Terry Bramall, who made his fortune through construction and DFS sofa king Lord Kirkham also make the list.
This year's Sunday Times Rich List - the 29th and set to be published this Sunday, May 7, will be revealed in a 160-page special edition of The Sunday Times Magazine.
The full 1,000 strong list will be available at www.thesundaytimes.co.uk/richlist2017