The Piano Shelf: New York based artist and designer Sebastian Errazuriz . It folds flat when not in use, occupying zero space in the room. Once you need to store something – simply unfold the sufficient number of ‘keys’ to accommodate the item.
Artists Naoki Hirakoso and Takamitsu Kitahara built this wooden surface called the Kai Table, complete with a bunch of “secret” compartments — probably more accurately described as storage compartments; they don’t seem too secret.
Small House Folding Interior - Japanese designers Atelier OPA created a unique set of products, which are perfect for small spaces. Includes a mobile home office, a small kitchen, and a guest room (pictured). When not in use, fold your furniture away.