Dutch studio Concrete has kitted out the suites of an Amsterdam hotel with fittings that include retractable staircases, ceiling-mounted gymnast's hoops and under-bed offices. More
Moveable library-style shelving units slide from side to side to reveal and hide compartments that serve various functions in this Spanish apartment by Madrid-based PKMN Architectures (+ slideshow). More
Porto studio OODA has renovated two 19th-century buildings in the city to create apartments that contain monolithic freestanding units housing the kitchens, beds, bathrooms and other furniture (+ slideshow). More
A mezzanine hammock, an adaptable seating cube on wheels, and a combined staircase and bookshelf have been added to this play and study space for a brother and sister, designed by Russian studio Ruetemple (+ slideshow). More
This space-efficient box by Swiss designer Till Könneker creates a separate sleeping area and compact storage solutions for studio apartments (+ slideshow). More
Israeli architect Ranaan Stern has adapted a 15-square metre room inside an artist's Tel Aviv apartment to create a studio with two desks, 36 drawers, modular storage compartments, pegboard display walls and even a folding bed (+ slideshow). More
British studio 1508 London has converted a Victorian post office in London into an apartment where perforated concrete shutters can be used to open and close different sections of the interior (+ slideshow). More
This seaside studio apartment in Barcelona by Spanish studio Colombo and Serboli Architecture has an all-white interior that includes a tiled kitchen and bathroom that can be hidden away (+ slideshow). More
London Design Festival: the family home of the future will feature mechanised floors and furniture that emerge from walls, floors and ceilings at the touch of a button, according to Yo! Sushi and Yotel founder Simon Woodroffe (+ slideshow). More
Glass screens slide back and forth across a timber grid that divides this apartment in Japan. More
A shelving unit displaying children's clothes doubles up as a plywood playhouse with a sliding staircase, swinging doors and removable furniture. More
French designer Paul Coudamy has created this red-gloss sliding wall unit combining a desk, bed and wardrobe for an apartment in Paris. More