Iceberg homes: That's what today's billionaires are building - with underground discos, dog spas and even waterfalls... but it's driving the neighbours crazy | Daily Mail Online
Coolopolis: Mega-basements: Iceberg housing coming to Montreal sometime maybe
How London's 'iceberg' homes and luxury mega basements represent wealth burrowing underground - ABC News
Why 'iceberg' mansions are becoming more popular in Toronto | The Star
Building home expansions underground are growing in popularity. Are iceberg houses the future?
Iceberg homes: is this the end of an era for mega-basements?
Iceberg homes: how basements of the rich cause hell for their neighbours | Homes | The Guardian
A Look Inside London's Most Outrageous 'Iceberg' Homes
1m home collapses into pile of rubble after businessman's attempt to build 'iceberg basement' goes awry
Iceberg Homes: London Boroughs Curb Luxury 'Super-Basements' - WebUrbanist
Iceberg homes: how basements of the rich cause hell for their neighbours | Homes | The Guardian
Map reveals 4,650 mega-basements dug beneath London homes | Daily Mail Online