Skidmore Owings and Merrill has proposed a 180-metre skyscraper in Paris that is designed to be zero-energy, and accessible via a garden bridge leading from the River Seine. More
Haptic and Nordic Office of Architecture have released plans for a city next to Oslo Airport that is to be completely powered by self-produced energy and served by driverless electric vehicles. More
Scandinavian practice Henning Larsen Architects has unveiled plans to transform the east bank of the River Lagan in Belfast, Northern Ireland, using the redevelopment of Copenhagen harbour as a model. More
A tower with undulating, tree-covered canopies by Japanese architect Sou Fujimoto forms part of this competition-winning €275 million masterplan for a new neighbourhood in Nice, France. More
Architecture firm BIG has updated its plans for the revitalisation of the Smithsonian Institution campus in the US capital, after the initial designs sparked opposition. More
Swiss practice Herzog & de Meuron has won a competition to design a new masterplan for Basel's Nordspitze area, including three residential skyscrapers. More
Architecture firms Elkus Manfredi and Sasaki have unveiled a masterplan to transform a parcel of land south of Boston into a smart city, the latest in a string to be announced for North America. More
British firm Allies and Morrison has designed a new city for Oman, which will transform a desert valley into a 624-hectare urban centre over the next 30 years. More
Houston has launched a 20-year plan to overhaul its Downtown business district, after the Texas city's urban design was heavily criticised following catastrophic flooding caused by Hurricane Harvey. More
British architect David Chipperfield has been selected to reconfigure a major art museum in Minnesota, which includes a 1970s extension designed by modernist Japanese architect Kenzo Tange. More
A beach volleyball court will be installed at the foot of the Eiffel Tower as part of the masterplan developed for the Paris 2024 Olympic Games by architects Populous and engineers Egis. More
Zaha Hadid Architects has designed a masterplan for Tallinn's port, boasting a new cruise ship terminal as well as office and housing districts intended to spark regeneration around the waterfront of the Estonian capital. More
The part of Oslo's government quarter damaged during the 2011 terrorist bombing will be replaced by one of two proposals – one by a team including Haptic and Nordic, and another by a team featuring A-Lab and LPO Architects. More
SOM has won a competition to design a new district for Sri Lankan city Colombo, with a design featuring numerous skyscrapers, a marina, canals and a park, influenced by the country's tropical climate. More
Facebook has announced that architecture firm OMA will masterplan a new village for the area adjacent to its Frank Gehry-designed campus in Menlo Park, California. More
British firm Adjaye Associates has announced that it will serve as masterplan architect for the redevelopment of The San Francisco Shipyard neighbourhood. More
London Design Biennale 2016: architect Fernando Romero has unveiled plans for a binational city spanning the US-Mexico border, amid Donald Trump's calls for a wall to be built between the two countries (+ slideshow). More
Architecture firm Skidmore Owings & Merrill has unveiled its vision to transform the Beaux-Arts 30th Street Station and its surrounding area in Philadelphia (+ movie). More
Nearly 1,400 people have signed a petition in opposition to Bjarke Ingels Group's proposal to demolish a portion of the Smithsonian Institution campus in Washington DC. More
New York studio SHoP Architects and Dutch landscape firm West 8 have designed a new city quarter for Philadelphia that would extend the skyline beyond its traditional boundary, the Schuylkill River (+ slideshow). More