VISCOUNT PORTMAN and FAMILY

18 £1,070m Property

"One of the reasons why the Great London Estates have prospered is that instead of being observers of their fate, they have become participants in their future," says the Portman Estate website. And Portman, 44, owner of 110 acres around Portman Square and Oxford Street, is certainly living up to that ethos. In February, the Portman Estate announced that it had teamed up with a leading insurance group to offer specialist services to estate residents. Meanwhile, it is continuing to refurbish property as the area steadily moves upmarket. Portman, who lives in Australia, is keenly involved in the makeover. We can see only about £5m of net assets in Portman Settled Estates and the Brickleton Group, but our source in the estate world says we are safe to value Portman's 110 London acres - owned by family trusts - at £1,050m. We add £20m for other assets, including 3,000 acres in Herefordshire, an Antiguan holiday home and a Sydney mansion.

19
£1,020