Forget a Swiss standard of living. The Danish capital is oft feted as one of the healthiest and happiest cities in the world with extensive cycling networks, a dedication to the outdoors and breathtaking architecture that balances form and function.

Copenhagen also has lofty sustainability aspirations. Hoping to be carbon neutral by 2025, the city has started initiatives such as its green roofs policy that dictates all new buildings with roof slopes of less than 30 degrees must have vegetation grown on them.

Copenhagen Copenhill Bjarke Ingels

Danish designer Bjarke Ingels embodies this ethos – with a social twist. His architecture firm, Bjarke Ingels Group (BIG), is all about hedonistic sustainability – challenging the notion that going green always means giving up pleasures.

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At the same time, he feels public infrastructure like highways and railroad tracks – or incineration plants – are too often left in the realm of civil engineering. By leveraging on creative minds, these spaces can become natural hubs that benefit both the people and the city.

In this case, a traditionally utilitarian incineration plant is given far more than a sleek facade: a rooftop artificial ski-slope, hiking trail and the world’s largest climbing wall – 80 metres tall – transform the industrial building into an urban recreation centre christened Copenhill.

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The incineration plant is no longer an eyesore occupying vital acreage in one of Copenhagen’s densest districts, but a welcome amenity that attracts visitors from the region and beyond.

It joins Copenhagen’s stable of public infrastructure brought to life by social spaces and cunning architects.

The plant converts 440,000 tons of waste into energy annually, making it one of Denmark’s cleanest and greenest energy sources. It was originally slated to have a quirky smokestack releasing the plant’s emissions as a smoke ring, though that was later shafted.

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Copenhill took a decade of planning and construction to come to fruition, and saw BIG working with a slew of other firms like Luchinger+Meyer and Ramboll.

Copenhagen Copenhill

Space will get increasingly hard to come by as the world population continues creeping toward eight billion – and its places like Copenhagen that show us how to make the most out of what we have.

For information more about Copenhill, click here.