This sofa by New Zealand design graduate Marvin Reber can be taken apart and reassembled to form play apparatus for children (+ slideshow). More about Marvin Reber's Inclusion Couch dismantles to create an indoor playground
A sauna is housed within this wooden hut by Andre Tchelistcheff Architects, which perches on a grassy knoll overlooking the Hudson River and Catskill Mountains in upstate New York (+ slideshow). More about Wooden cabin by Andre Tchelistcheff Architects houses a sauna in the Hudson Valley
Comments update: Tony Ash, managing director of furniture brand Vitra, says designers need protecting from copycats – but readers aren't sure that cheap rip-offs are the design industry's biggest problem. More about "I don't expect a bargain for good design, but fair prices would be a nice change"
A rainforest populated with orangutans, a giant chess board and floating jellyfish are sculpted from the snow and ice used to create the rooms inside this year's Icehotel in Jukkasjärvi, Sweden (+ slideshow). More about Icehotel's 25th edition includes a square vortex suite
News: Herzog & de Meuron's severely delayed concert hall for the Hamburg Elbphilharmonie finally has an opening date set for 2017, but its price tag is now more than 10 times the original estimate. More about Completion in sight for Herzog & de Meuron's £617-million Elbphilharmonie concert hall
News: the creative industries are now worth £76.9 billion per year to the UK, with the design sector enjoying the biggest growth. More about Creative industries in the UK generate £8.8 million per hour
News: a chart-busting 97 skyscrapers over 200 metres tall were completed in 2014 – and a record-breaking 58 of them are in China, according to the latest industry review. More about Skyscraper surge makes 2014 the "tallest year ever"
Dezeen promotion: the latest materials for the built environment will be on display at this year's Surface Design Show in London from 10 to 12 February. More about Surface Design Show 2015 to present materials for architecture and interiors
Italian illustrator Federico Babina honed in on details of buildings by architects including Le Corbusier, MVRDV, Zaha Hadid and Mies van der Rohe to create the abstract graphics of this poster series. More about Famous buildings become abstract blocks of colour in Federico Babina's Archishape series
News: an appeals court has blocked the SANAA-designed renovation of iconic former department store La Samaritaine in Paris, which includes a wavy glass facade that critics have compared to a shower curtain. More about French court revokes planning permission for SANAA's La Samaritaine revival
Architects João Quintela and Tim Simon have built a pavilion inside a climbing centre in Lisbon, providing a cafe and reception space that visitors can also scramble over (+ slideshow). More about Visitors to Lisbon's Vertigo Climbing Center can clamber on the cafe
Children's bedrooms and play spaces take over the partially exposed subterranean floor of this house completed by Scandinavian firm CF Møller on the edge of a wood in Aarhus, Denmark (+ slideshow). More about CF Møller's Villa R features a sunken storey for the clients' children
Maison & Objet 2015: British designer Tom Dixon's latest range of accessories includes copper stationery and containers with magnifying-glass lids. More about Tom Dixon to launch metal home and office accessories in Paris
News: the viewing terraces opened today at the top of Rafael Viñoly's so-called Walkie Talkie skyscraper in London, pictured in these exclusive images by photographer Edmund Sumner (+ slideshow). More about Sky Garden opens at the top of Rafael Viñoly's Walkie Talkie
News: a team led by 64North Architecture has won a competition to design a pedestrian and cyclist bridge connecting the San Francisco Bay waterfront and Palo Alto – home to some of the world's leading technology companies. More about Palo Alto footbridge will span the 14 lanes of San Francisco's 101 freeway
News: disgraced fashion designer John Galliano has made his catwalk comeback with his inaugural haute-couture collection for Paris house Maison Martin Margiela. More about John Galliano returns to fashion with Margiela couture collection
Italian designer Martino Gamper has created a "homage to the humble corner" in the shop windows of fashion house Prada (+ slideshow). More about Martino Gamper plays with perspective for Prada window installations
News: Ole Bouman, former head of the Netherlands Architecture Institute, has been named as the director of a major new design museum developed in collaboration with the V&A in Shekou, Shenzhen. More about Ole Bouman named as director of V&A-backed design museum in China
Japanese studio Alphaville raised the base of this Osaka house up on crooked stilts, revealing the complex arrangement of rooms, bridges and lightwells contained within (+ slideshow). More about Alphaville's Dig In the Sky house is made up of three blocks connected by bridges
News: the American Institute of Architects has announced 23 winners for the 2015 edition of its annual awards, including a visitor centre for the Wild Turkey Bourbon distillery, a cube-shaped courthouse and BIG's subterranean maritime museum in Denmark (+ slideshow). More about 2015 AIA Institute Honor Awards winners announced