Arched doorways and shuttered windows give this Japanese residence by Takushu Arai the appearance of an oversized playhouse (+ slideshow). More about Arched openings cut through walls of Takushu Arai's steel-plated house in Yokohama
James Corner Field Operations – one of the studios behind New York's popular High Line – has designed a new park for downtown Miami that would be constructed beneath an elevated rail line (+ slideshow). More about Underline park by James Corner Field Operations would stretch below elevated rail tracks in Miami
Comments update: hacked Ikea flat-pack kitchens by Danish architecture studios BIG, Henning Larsen and Norm have triggered a debate about the affordability of good design. Read on for more on this and don't forget to explore our comments page to keep up to date with the latest discussions. More about "They've hacked Ikea's affordable designs to create unaffordable aspiration pieces"
Pomo summer: London design store Darkroom has created a collection of home accessories and jewellery based on five basic shapes to celebrate its fifth anniversary. More about Darkroom responds to "soft Postmodernism fluff" with fifth homeware collection
Brazilian architect Alan Chu has completed the renovation of a São Paulo apartment, which uses ceramic ventilation bricks to form partitions and furniture (+ slideshow). More about Traditional ceramic blocks feature in Alan Chu's São Paulo apartment renovation
Atelier Central Arquitectos has upgraded the campus of a Lisbon high school, adding a pale concrete entrance block and a network of corridors enclosed behind slender golden fins (+ movie). More about Atelier Central Arquitectos adds concrete entrance and golden walkways to Lisbon school
A Japanese inventor has developed the "world's smallest electric car" – an aluminium board with wheels that carries a passenger like a Segway and fits into a backpack (+ movie). More about Cocoa Motors' WalkCar transports passengers on a laptop-sized board
The scooped walls of this aluminium-clad retail and housing complex were designed by Iroje KHM Architects to mimic the concave roofs of traditional Korean houses (+ slideshow). More about Concave walls give a scalloped outline to mixed-use block by Iroje KHM Architects
Graduate shows 2015: Royal College of Art graduates Begum and Bike Ayaskan have designed a plant pot with a complex origami form, which enables it to unfold and accommodate more space for roots over time. More about Begum and Bike Ayaskan's Growth plant pot expands with its occupant
David Chipperfield Architects has completed a pair of holiday villas inspired by lemon houses on a hillside overlooking Italy's largest lake (+ slideshow). More about David Chipperfield references historic lemon houses with hillside villas on Lake Garda
Architect Frank Gehry is designing a masterplan for the revitalisation of the Los Angeles River, a barren canal-like waterway that weaves through the California city. More about Frank Gehry revealed as designer of masterplan for LA River
Melbourne-based Tandem Design Studio has designed the interior for a shop that sells both footwear and health products, featuring a complex wooden shelving system that "combines geometries" (+ slideshow). More about Tandem installs elaborate wooden shelving inside Hugg health and footwear store
Pomo summer: Mario Botta's monumental San Francisco Museum of Modern Art was the architect's first building in the US, but was frostily received by critics. Now undergoing a major extension project led by design firm Snøhetta, the building is the next in our summer series on Postmodernism (+ slideshow). More about Postmodern architecture: San Francisco Museum of Modern Art by Mario Botta
Turner Prize-winning artist Jeremy Deller has created a new limited-edition banknote for the Brixton Pound, a currency that supports south London's local economy. More about Jeremy Deller designs special-edition note for Brixton Pound
Danish architecture studios BIG, Henning Larsen and Norm have hacked IKEA flat-pack kitchens for Danish company Reform (+ slideshow). More about IKEA kitchens hacked by Danish architects including BIG
New Zealanders are to get a chance to vote on a new flag for their country, which could replace its existing graphic featuring the Union Jack. More about New Zealand announces 40 potential new flag designs
A cross made from two steel I-beams frames the entrance to this bright white funeral chapel in Hungary, by local firm L.Art Architectural Office (+ slideshow). More about L.Art Architectural Office adds white funeral chapel to Hungarian cemetery
Dezeen and MINI Frontiers: Royal College of Art graduate Frank Kolkman has built an open-source machine that could enable people to perform keyhole surgery on themselves using a Playstation controller (+ movie). More about Designer Frank Kolkman hacks 3D printer components to build DIY surgical robot
French studio Marchi Architectes has completed an asymmetric gabled house featuring a room that functions as a courtyard and a generous corridor that doubles as an art gallery (+ slideshow). More about Chestnuts House in France features a courtyard room and a private art gallery
Italian architecture firm +R Piuerre has converted a dental practice at the top of a Milanese building into a 60-square-metre apartment (+ slideshow). More about Milan dental studio converted into compact two-storey apartment