Early Spink project in Chelsea asks £4.75m

Set up in 1963 by young architecture grads Su Brumwell, Wendy Cheesman, Norman Foster and Richard Rogers, the legendary Team 4 practice would see its members go on to become bona fide world-beaters.

'Challenge of the Week' surely has to go to this intriguing proposition in Chelsea.

A remarkable apartment in Turner's Reach House on Chelsea Embankment has been listed at £9.25m.