Build a Complete Luxury Home Underground

The 1,000 square metre structures are designed to go underneath mansions and are apparently ‘optimised for super-luxury everyday lifestyle, while prepared for all surface threats’. The high-tech bunkers descend 15 metres below ground and feature an airlock that has been fully equipped as a decontamination chamber, an indoor garden, a fitness space, comfortable living and sleeping areas and a private art gallery – which can be seen through an opaque-to-transparent wall and has bank-vault level security.