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Peter Harris and family
Hotels, Caravan parks
Rank 2017
189
Worth
£680m
Rise/fall
£30m

More than 4m families annually visit a Butlin’s, Warner Leisure or other holiday destination owned by Bourne Leisure, the Hemel Hempstead business founded by Harris, 83, and the late father of Colin Allen (qv). Profits reached a record £134.1m on sales of £951.4m in 2015 and assets grew to almost £300m. We value the Harris family's stake in the £1.1bn operation at £400m, adding a 60% holding in the £300m spread-betting firm Spreadex. Other interests take Harris to £680m.