This week on Dezeen: Dutch architect Rem Koolhaas took a swipe at campaigners advocating Britain's exit from the European Union this week, while a proposal to replace Thomas Heatherwick's controversial Garden Bridge design was tabled (pictured).

Architecture firm Allies and Morrison proposed planting trees on an existing bridge in London as a cheaper solution than Heatherwick's £175 million Garden Bridge design (pictured above).

In the same week as 90 per cent of British fashion designers said they will vote to remain in the European Union, OMA founder Rem Koolhaas – who studied and taught in the UK in the 1960s and 70s – said that membership had benefited Britain over the years, before warning that the Leave campaigners were promoting an idealised view of England that never existed.

In other news, a row erupted over Kunlé Adeyemi's award-winning Makoko Floating School following its collapse, with a community leader in Lagos claiming the structure posed a "danger to kids" prior to their evacuation.

The "world's tallest moveable observation tower" underwent final safety tests ahead of its opening in Brighton and Skidmore, Owings & Merrill completed a new building on the grounds of the US Air Force Academy in Colorado.

The beehive-inspired pavilion created by artist Wolfgang Buttress for the Milan Expo 2015 reopened in London's Kew Gardens and David Adjaye was selected to design a major new art museum in Latvia.

We examined the boom in Iran's architecture scene following the lifting of crippling economic sanctions and investigated what happens to high-profile temporary pavilions after they are no longer used.

In design news, Rolls-Royce unveiled its first ever concept car with a built-in "red carpet" and Benjamin Hubert's studio Layer created a collection of ceramic trays capable of wirelessly charging electronic devices.

A demountable office by French Modernist designer Jean Prouvé, which was used as a swingers' club until recently, went on display at this year's Design Miami/Basel fair. A new version of Zaha Hadid's sculpted Kuki chair was also showcased at the event.

Ronan and Erwan Bouroullec paid tribute to Hadid with a floral installation inside her first major completed building and we published an exclusive movie with Richard Rogers about his fight to get the late architect's London Aquatics Centre built.

Ikea unveiled a collection of furniture and homeware made out of recycled materials, while Piet Hein Eek revealed the first products from his ongoing collaboration with the Swedish furniture giant.

Cling-film dresses and pieces constructed from scrapped motorcycles were among our top picks from the Royal College of Art's 2016 fashion graduate presentation, while headpieces made from moulded plastic featured at the London College of Fashion show.

Popular stories this week on Dezeen included a glazed extension to a London home, a tear-resistant condom and Peter Zumthor's additions to a tourist trail in Norway.

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