Designed by US Submarine Structures, the stunning submerged H2ome offers five-star luxury living 59 feet under the ocean. Ideal for lagoons, shallow seas and lakes, the prefabricated aquatic pad is accessed by a private pier and elevator.

The lower floor is fitted with ceiling-to-wall transparent acrylic panels, with feeding devices attached to the external walls to attract shoals of colourful tropical fish, so you'll never be without a jaw-dropping view. 

Possibly the most jaw-dropping home feature money can buy, the underwater level encompasses the spectacular master bedroom and bathroom, which benefit from breathtaking views of a coral garden. Imagine taking a long, hot bath with that surreal ocean outlook!

The larger four-room Signature Edition Floating Seahorse, which was unveiled in 2016, offers a generous 4,000 square feet of living space, enough to accommodate up to eight people. Designed with families and large groups of friends in mind, the units are valued at £4.2 million ($5.5m) each. 

Once completed, the Signature Edition homes will benefit from cutting-edge smart home technology, which will control everything from the blinds to the lighting. The design's pièce de résistance, however, has to be the upper deck, featuring a Jacuzzi and a luxe outdoor living area. According to the Kleindienst Group, there are 131 Floating Seahorse villas planned for the Dubai resort.

Inspired by the opulence of Imperial Russia, the Tzar Edition villas are tastefully decadent and filled with features that only billionaires can afford. Decked out with lots of gold accents, fine marble and quality wood finishes, the villas are bound to please the richest of house-hunters.

Like the other Floating Seahorse designs, which all come with a 100-year guarantee, the Tzar Edition includes a whirlpool bath, mini bar, day beds and a cleverly hidden kitchen accessed by a sliding wood panel, not to mention some of the best snorkelling around the world on your doorstep. It's almost like living on your very own private island!

This rotund semi-submerged home is the brainchild of architect Giancarlo Zema. Inspired by the shape and movement of jellyfish, the structure is spacious enough for six people and comprises four levels, with a level below the waves.

The four levels are connected by a dramatic spiral staircase. The top three storeys comprise a study room, kitchen, living areas and bedrooms, and the home's centrepiece, its underwater level, houses the ocean-level viewing room. Now that's an aquarium fit for a millionaire!

Part of the Manta Resort in Zanzibar, this fabulous floating home features a cosy underwater room with just enough space for a king-size bed. While it's more boho than luxurious, staying in the guesthouse will set you back a hefty £1,370 ($1.8k) a night.

The world's first underwater villa, The Muraka is connected to the Conrad Maldives Rangali Island resort by a long jetty. Promising incredible ocean views, it was designed by architect Ahmed Saleem, who wanted to create an aquatic bedroom where you could relax and unwind under the sea.

The upper level offers spectacular views across the infinity pool and private jetty. Guests can then descend the spiral staircase into their very own underwater oasis. How's that for dipping your toes in the water?

Love these amazing underwater homes? Check out our Facebook page for more incredible properties