The Japanese government has been accused of using timber linked to deforestation and human-rights violations to build its Kengo Kuma-designed stadium for the Tokyo 2020 Olympics. More
Building work has begun on Kengo Kuma's National Stadium for the Tokyo 2020 Olympics – the design that was controversially selected to replace Zaha Hadid's competition-winning scheme. More
To make medals for Tokyo 2020, Olympic organisers are considering mining Japan's vast repositories of e-waste for millions of discarded smartphones and computers. More
A pair of chequerboard designs have been unveiled as the new official logos for the Tokyo 2020 Olympics and Paralympic Games, after the original designs were ditched amid claims of plagiarism. More
Tokyo 2020 Olympics has unveiled a shortlist of four new logo designs, after the original logo by Japanese designer Kenjiro Sano was abandoned following accusations of plagiarism (+ slideshow). More
Belgian designer Olivier Debie, who claimed that one of his designs was plagiarised for the recently ditched Tokyo 2020 Olympic logo, has dropped his lawsuit against event organisers. More
Japanese designer Tokujin Yoshioka has revealed his own vision for the Tokyo 2020 Olympic stadium, which he was not permitted to enter into the design competition (+ movie). More
Kengo Kuma has rubbished claims by Zaha Hadid that his replacement design for her scrapped Tokyo Olympic stadium has "remarkable similarities". More
The organisers of the Tokyo 2020 Olympics are refusing to pay Zaha Hadid for her scrapped stadium design until she gives up all copyright on the project and signs a gagging order. More
Zaha Hadid has accused Japanese authorities and architects of colluding over the Tokyo 2020 Olympic stadium project, and says that Kengo Kuma's replacement design has "remarkable similarities" to her own. More
Japanese officials have selected a wooden lattice design by Kengo Kuma for the new National Stadium in Tokyo, which will be the centrepiece for the 2020 Olympics. More
Japanese architects Kengo Kuma and Toyo Ito have designed rival proposals to build the 2020 Tokyo Olympic stadium, replacing Zaha Hadid's competition-winning design. More
Tokyo 2020 Olympics organisers have launched a public competition to source a replacement logo for Kenjiro Sano's controversial withdrawn design. More
An angry Zaha Hadid cut short a live radio interview over "absolutely inaccurate" allegations about her Qatar World Cup and Tokyo 2020 Olympic stadiums, and told a Radio 4 presenter she had failed to check her facts. More
Zaha Hadid Architects has had to give up its battle over the Tokyo 2020 Olympics stadium after failing to secure a construction company for its design. More
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
The organising committee for the Tokyo 2020 Olympics has reportedly withdrawn the design for the event's logo amidst copyright controversy. More
Zaha Hadid Architects has released a new movie detailing its design for its scrapped Tokyo 2020 Olympic stadium, which it describes as "the only way to achieve value for money in the market" (+ movie). More
British architect Richard Rogers says Japan "lost its nerve" in abandoning Zaha Hadid's Olympic stadium design, adding that the decision could damage the country's credibility. More
Kenjiro Sano, who unveiled his logo design for the Tokyo 2020 Olympics last month, has denied allegations that he copied the design from an emblem for a Belgian theatre. More