The next trend in luxury Canadian real estate? Multi-level 'iceberg' basements. - Macleans.ca
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
Are Super Basements Creating Greater Flood Risk in London? - London Drainage
Iceberg homes: how basements of the rich cause hell for their neighbours | Homes | The Guardian
Iceberg homes: is this the end of an era for mega-basements?