Architect Suraksha Acharya from Midori Architects has proposed a pair of ultra-green translucent towers for the Hong Kong skyline. The futuristic Aero Hive skyscrapers are clad in an organic facade interspersed with greenery that leads up to the towers’ expansive open-air rooftop gardens. The concept is based on creating an iconic symbol of sustainable design for the city – a unique highrise designed to adapt to the challenges of the local climate and reduce CO2 emissions in the area.

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Acharya’s design, which recently won the Skyhive Skyscraper Challenge, is meant to provide the bustling Hong Kong skyline with an icon of sustainability. Although aesthetically apt for Hong Kong’s profile of soaring skyscrapers, the Aero Hive is also strategically designed to withstand the local climate. The shape and size of the two towers, as well as the materials, were all chosen to adapt to the city’s subtropical weather and extreme winds.

Related: Futuristic floating skyscraper ‘heals’ the effects of climate change

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According to the architect, the design is meant to change ideas when it comes to green skyscrapers, “Aero Hive aims to challenge the common belief that contemporary tall buildings cannot be ventilated naturally due to their ultra-heights and offers pause from typical hermetically sealed glass-boxes, serving as a model of sustainability”

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The curvaceous form of the towers is designed to be self-shading, meaning that the angles of the buildings are precisely aligned to allow them to mutually shade each other throughout different times of the day. Additionally, the porous cladding allows optimal air circulation throughout the building. The double glazed windows that make up the cladding are also optimized to bring in diffuses natural light to the interior while restricting direct solar radiation.

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Topping the twisty towers are two flared rooftops, which will be open to the public as city gardens. The greenery is two-fold – helping preserve the city’s public green space, but also address the “urban heat island” effect common in Hong Kong’s tropical climate. The lush rooftop gardens will help create a natural habitat for local birds, as well as filter pollutants and reduce CO2.

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Images courtesy Midori Architects