But , as Britain faces a housing shortage and soaring property prices , The Bishops Avenue 's empty mansions are likely to add to debate over taxes payable by overseas property buyers -- particularly if they remain empty . one of the houses on London 's second most expensive street are lying vacant . Dubbed `` Billionaires ' Row , '' the road 's average house costs $ 582 million . Many have been deserted by their wealthy foreign owners .
one of the houses on London 's second most expensive street are lying vacant . Dubbed `` Billionaires ' Row , '' the road 's average house costs $ 582 million . Many have been deserted by their wealthy foreign owners .