Buildings adopt regenerative approach to design
Book highlights examples of architecture that mimics nature to reduce harm to environment
There’s a new climate push in the building industry: regenerative architecture.
The sector has been trying for years to cut its large carbon footprint, which was responsible for 38 per cent of the world’s energy-related greenhouse gases in 2019. But developers need to go beyond preventing pollution if they want to help avoid catastrophic climate change, according to Sarah Ichioka and Michael Pawlyn, co-authors of a new book titled Flourish: Design Paradigms for Our
Emergency.
Planetary
They argue that buildings should be designed in a regenerative way – a process that mimics nature by restoring its own materials and sources of energy. It goes further than sustainable design, which seeks to reduce harm to the environment and use only essential materials.
“More than half of humanity’s total historic greenhouse gas emissions have occurred since the concept of ‘sustainability’ entered the mainstream,” Ichioka and Pawlyn write. “It is now time to embrace a new regenerative approach to design and development.”
Their book highlights examples of regenerative design from China to Japan and the Democratic Republic of the Congo. Projects are still rare, but they are a glimpse of what the future of rural and urban architecture could be.
Raffles City Shopping Centre, Singapore
This rooftop garden, which sits above a large shopping centre, grows more than 1,600 organic herbs and plants that are used for food and skincare ingredients. The city state has limited land for agriculture and imports most of its produce, although the government aims to grow 30 per cent of domestic produce locally by the end of the decade.
Edible Garden City, the business which runs the site, maintains multiple plots that grow mushrooms and leafy greens. Some also breed fish and insects.
Bamboo Theatre, Zhejiang, China
Designed by Beijing-based DnA and completed in 2015, this theatre is built entirely from living bamboo taken from the mountains that surround the Chinese village of Hengkeng.
It’s hosted a range of activities, from local opera performances to meditation sessions. The species of bamboo – known as Mao Zhu – can grow when bent and has roots that spread out horizontally to create the foundation of a building. Each year, old bamboo can be easily be replaced and bent to join the existing structure.
Ise Jingu shrine, Mie, Japan
Every 20 years, part of the Ise Jingu shrine in Japan is rebuilt from new timber – a ritual that dates back more than 1,300 years. The building is replaced by a new structure with identical dimensions, alongside the same sacred furnishings and objects. The old gate is shaved down and recycled.
Trees that were strategically planted 100 years ago are used for building materials, and more trees are planted in anticipation of the shrine’s relocation a century from now. It’s not a unique process. The Sagrada Familia church in Barcelona and the Ulm Minster church in Germany have followed similar cycles spanning hundreds of years.
Ilima Primary School, Tshuapa, Democratic Republic of the Congo
The Ilima community is located deep in the jungle of the Democratic Republic of the Congo and sits between an area of farmland and natural habitat. Bostonbased architects Mass Design Group saw an opportunity to connect these two different landscapes by building the Ilima Primary School in the centre, to act as a bridge between humans and wildlife. Woven and dyed vines grow around the building to keep teachers and students cool.
The school was produced from custom shingles, mud bricks and beams made exclusively from local materials sourced from within 10km of the site. Construction emitted 307 fewer tonnes of carbon than the global average for schools of the same size.
Cheonggyecheon Stream, Seoul, South Korea
The demolishing of an elevated motorway uncovered 6km of Seoul’s historic Cheonggyecheon stream. The project, completed in 2005, increased the area’s biodiversity by more than sixfold, according to the Landscape Performance Series.
Within three years of restoration, paths along the stream were as much as 5.9 degrees Celsius cooler than on a parallel road four blocks away, and air pollution dropped by more than a third.
Sahara Forest Project Pilot Facility, Qatar
Birds began to appear on the first day that plants began arriving in 2012 at this saltwater-cooled greenhouse built on the previously barren Qatari desert. The birds were followed by grasshoppers, then butterflies, then a long-eared rodent called a jerboa.
The revival shows that nature has a great capacity for regenerative growth under the right conditions, in this case created by human design, Ichioka and Pawlyn write in their book.