'The Smallest House in the World' is an art project by Jeff Smith and may be the smallest house that functions on record.
The house measures 25 square feet in size with just enough height for the user to sit up. It is small enough to be carried in a van and also has it's own wheels, making it highly mobile. The house has no storage space, but does include a sink, a waste system, a stove and even a shower that resembles a futuristic coffin.
While certainly not ideal for those prone to claustrophobia, this house and it's functional features may be an inspiration to tiny house lovers and even nomads who are likely to travel and live in compact shelters.