For the totally independent individual not burdened with the rigors of the ordinary, an opulent orb hanging amidst the oaks might be for you. No neighbors, no yardwork.
Builders get creative with alternative modes and materials for modern lifestyles. Concrete tube condos in Hong Kong are not only real, but are a popular option for temporary housing! While they have less square footage than a normal shipping container, they're easily stackable, well insulated, and affordable! Can you say "totally tubular, dude!" Ha!
The new 'in' trend of the ultra rich - survival, ultra rich style! High end zombie bunkers with pools, dog parks, and movie theatres? Yes, please! It may cost you $3,000,000+ but it'll be a lot less claustrophobic and way more luxury than your typical Zombie movie destination.
They are built right into the ground, generally with one exposed face, often facing south. Most are built with recycled materials such as old tires, pop cans, and bottles, as well as reinforced with mud, straw, and other natural materials.
When you find yourself in need of extra living space, there's a better answer. Whether a tiny house alone in the woods or as an "accessory dwelling unit" on your current property, tiny houses are an amazing adorable home option.