The architecture trend dividing London's elites - YouTube
The most luxurious basements in the world | loveproperty.com
Iceberg Homes: London Boroughs Curb Luxury 'Super-Basements' | Urbanist
Revealed: Vast scale of London's super basements... and one even has a beach | London Evening Standard | Evening Standard
London Borough of Kensington and Chelsea Takes Stand Against Super-Basements | ArchDaily
Neighbours' fury over London's longest-running mega-basement dispute
Iceberg Homes: London Boroughs Curb Luxury 'Super-Basements' | Urbanist
A pool in the basement is a clear marker of wealth': how the super-rich are digging down | Home improvements | The Guardian
How the "global super-rich" have honeycombed London's posh neighbourhoods with sub-basements, sub-sub-basements, and sub-sub-sub-sub-sub-basements | Boing Boing
Chelsea Mansion Collapses in London - Air Mail
Kensington and Chelsea Council Set Precedent For Tax On The Super-Wealthy. - Fox Moving