The Guardian did a report a few years ago about some of the multi-million pound properties in London which have been left empty and derelict for years: https:/

The Guardian did a report a few years ago about some of the multi-million pound properties in London which have been left empty and derelict for years: https://www.theguardian.com/society/2014/jan/31/inside-london-billionaires-row-derelict-mansions-hampstead https://www.theguardian.com/society/2014/jan/31/inside-londo...