Architect Rafael Viñoly has unveiled plans to convert an ageing shopping centre in California's Silicon Valley into a vast development featuring the world's largest roof garden (+ slideshow). More
Google has found another way to begin construction on its vast Silicon Valley campus designed by BIG and Heatherwick Studio – despite losing its original land bid to social network LinkedIn. More
Facebook employees have moved into their new Frank Gehry-designed Silicon Valley headquarters – a 40,000-square-metre office building with "the largest open floor plan in the world" and a huge rooftop park. More
Exclusive: in this exclusive interview, BIG founder Bjarke Ingels talks about the spectacular new HQ he is co-designing for Google, which wants to set a new industry standard for workplace design and help define "Google 2.0" (+ movie). More
Interview: over dinner in an apartment inside a historic clock tower, Airbnb co-founder and CEO Brian Chesky told Dezeen how two young design graduates built the home-stay booking website that is now bigger than most hotel chains. More
The new Silicon Valley HQ of data storage company Evernote features a coffee bar in the lobby, staircases with built-in seating and an in-house artist to paint murals on whiteboards. (+slideshow) More
News: urban improvements such as cycle paths, parks and public transport could transform Brooklyn and help turn New York City into the USA's leading location for technology firms, according to plans unveiled this week. More