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 about Rafael Viñoly reveals plans for the "largest green roof in the world" in Silicon Valley
Business news: London designer Benjamin Hubert has relaunched his studio under a new name as part of a shift towards more "human-focused" projects, and is using "crowdspeaking" to drum up interest (+ interview). More about Benjamin Hubert rebrands studio as Layer and launches "crowdspeaking" campaign
Zaha Hadid is working with Japanese architecture and engineering firm Nikken Sekkei to win back the Tokyo Olympic stadium project after its first competition-winning design was thrown out in July (+ slideshow). More about Zaha Hadid teams up with Nikken Sekkei to submit new bid for Tokyo 2020 stadium
This week on Dezeen: our roundup of this week's top stories kicks off with Google's new sans-serif logo (pictured), and also includes the winner of this year's Carbuncle Cup – an award created to name and shame bad architecture in the UK. More about This week, Google unveiled its new logo and the UK's "worst" building was named
Danish architecture studio CEBRA has won a competition to design an education campus in Irkutsk, Russia, which the firm described as "a new kind of school" (+ slideshow). More about CEBRA wins international competition to design Smart School in Russia
Design curator Andrew Blauvelt has been appointed director of the Cranbrook Art Museum in the Detroit suburb of Bloomfield Hills. More about Andrew Blauvelt named director of Detroit's Cranbrook Art Museum
An unofficial drone movie shot over the site of the new Apple Campus 2 in Cupertino, California, shows the latest progress on Foster + Partners' "doughnut" office design (+ movie). More about Drone movie shows Foster + Partners' Apple Campus 2 beginning to rise out of the ground
Danish-Icelandic artist Olafur Eliasson's solar energy company Little Sun has launched a Kickstarter campaign to fund the production of a mobile phone charger with a built-in lamp. More about Olafur Eliasson launches crowdfunding campaign for solar-powered mobile phone chargers
At least 11 firms have been invited to apply for the Barack Obama Presidential Library design contract in Chicago. More about Renzo Piano and Diller Scofidio + Renfro competing for Obama Presidential Library
A Southern California landscape architect is questioning why Frank Gehry was chosen to lead the masterplanning effort for the Los Angeles River redevelopment, citing a lack of expertise and public input. More about Gehry's selection as LA River masterplanner sparks criticism
London architecture studio Feilden Fowles has revealed plans for a visitors' centre with rammed-earth walls in Europe's largest modern and contemporary sculpture park. More about Feilden Fowles plans rammed-earth visitors' centre for Yorkshire Sculpture Park
Rafael Viñoly's Walkie Talkie skyscraper in London, which has so far melted cars and been blamed for powerful downdraughts, has been named the worst building in the UK this year. More about Walkie Talkie wins 2015 Carbuncle Cup for worst UK building
The owner of the former Moss gallery in New York is selling 60 pieces – from lighting fixtures to homeware – by leading designers including the Campana Brothers, Marcel Wanders, Philippe Starck and Studio Job (+ slideshow). More about Design purveyor Murray Moss auctions off items from private collection
Google has revealed a simplified new logo, a month after the tech giant announced a company-wide restructure with the launch of umbrella brand Alphabet. More about Google rebrands with new sans-serif logo
The organising committee for the Tokyo 2020 Olympics has reportedly withdrawn the design for the event's logo amidst copyright controversy. More about Tokyo withdraws 2020 Olympics logo after plagiarism allegations
New Zealand has narrowed down the options for its potential new flag design to include three fern motifs and a traditional koru emblem (+ slideshow). More about New Zealand shortlists four designs for crowdsourced national flag
The Broad museum designed by Diller, Scofidio + Renfro is set to open in September, heralding an architecture boom in Los Angeles. More about Instagram users offer a preview of The Broad museum in Los Angeles
Frank Gehry unveiled plans for a development of five buildings along Los Angeles' Sunset Strip this week, adding to the architect's list of projects in his home city – which is experiencing a surge of high-profile architecture projects. More about This week, Gehry continued his dominance of LA's architecture boom
Vietnamese firm Vo Trong Nghia Architects has unveiled designs for a verdant university campus in Ho Chi Minh City, featuring tree-covered rooftops, balconies and a plant-filled courtyard (+ slideshow). More about Vo Trong Nghia unveils tree-covered university campus for Ho Chi Minh City
Following the popularity of the fairytale-inspired House for Essex, FAT co-founder Charles Holland is working on a second house for Alain de Botton's Living Architecture project on a site in north London. More about Charles Holland plans Hampstead house for his second Living Architecture project