World’s Largest Rooftop Garden Could Take Root In Silicon Valley

California’s Silicon Valley could soon be home to the world’s largest rooftop garden.

Infamous ‘Walkie Scorchie’ skyscraper architect Rafael Viñoly is working alongside OLIN Landscape Architects to transform the ageing Vallco Shopping Mall in Cupertino into a modern mixed-use development with a 12 hectare rooftop garden.

If approved, the Hills at Vallco’s  massive rooftop garden would be the centrepiece of the development and would offer 6.1km of walking trails, organic gardens, meadows, vineyards, orchards, an amphitheatre, playgrounds and native plantings for native birds and plants.

The Hills at Vallco would use recycled water for irrigation, heating, and cooling.  Rainwater would be collected to reduce water consumption.

the hills at valco roof garden silicon valley

Underneath the roof would be a new shopping centre with a gym, bowling alley, ice skating rink, up to 800 apartments and 185,000 sqm of office space.

Plans for Hills at Vallco will be submitted to the City of Cupertino in the coming weeks.

The developer behind the project, Sand Hills, revealed that Hills at Vallco’s rooftop garden would be a milestone achievement.the hills at vallco

“The Hills at Vallco features an unprecedented 30-acre community park and nature preserve, which will not only be the largest community park in Cupertino, but also the largest green roof in the world,” said Sand Hills Director Reed Moulds in a statement.

“The Hills at Vallco expresses the lifestyle, innovation and creativity of Silicon Valley, and reinforces Cupertino’s position as the social, economic, technology and architectural centre of Silicon Valley.”

The Hills at Vallco Silicon Valley roof garden shopping centre

Rafael Viñoly is the architect behind the Walkie Talkie building in London, which has been recently nicknamed the ‘Walkie Scorchie’ and the Fryscraper’ due to the intense beam of light reflecting off the building.

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