Singapore's 'city in a garden' aspirations doesn't stop with our rugged nature trails and beautiful public parks. Our buildings are getting the green treatment too – and we're not talking about simple greenwashing. Some architectural gems in the city are lush and green but designed from the ground up with sustainability principles in mind. They use less electricity, produce less waste, and generally strive to have a low carbon footprint. We've sussed out some of the prettiest in the city that's worth stopping in your tracks to gawk at.

Against this backdrop, Singapore has emerged as a model of green building for planners and developers across much of the Asia-Pacific region, where poor design reigns and developers have historically seen little incentive to invest in sustainability, according to Asia-based architects and sustainability experts. Singapore’s BCA is now marketing its rating tool, Green Mark, as a brand in Southeast Asia, China, and parts of tropical Africa — even in countries, such as neighboring Malaysia, where local rating tools offer competing certification systems. Some consultants say the rise of Green Mark is a direct challenge to LEED, or Leadership in Energy & Environmental Design, the rating tool of the U.S. Green Building Council. LEED also is expanding in Asia.

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Reference :
https://www.timeout.com/singapore/things-to-do/the-most-stunning-green-architecture-in-singapore
https://e360.yale.edu/features/singapore_takes_the_lead_in_green_building_in_asia

Oasia Hotel
Ever wanted to live in a plush apartment right in the heart of the city? At Oasia Hotel Downtown, you can – and you wouldn't have to give up on any greenery either. The bright red facade of this hotel is covered in up to 21 species of plants and flowers, which add colour and life (even attracting birds!) to the urban jungle that is Tanjong Pagar. WOHA, the architecture firm behind Oasia, has broken down the walls on all four sides of the lobby (and the 21st floor); the resulting natural draft evokes a vibe reminiscent of a Bali villa retreat, albeit in a high-rise. Air-conditioning.

The goal for the design of this structure was to create a response to the concrete uniformity of Singapore's business district. The primary architect, Wong Mun Summ of Woha, said that the building emphasized sustainability over consumption. Mimicking a natural ecosystem, vertically planted flowers and vines attract fauna like insects and squirrels. Furniture and interiors for the building were designed by Spanish architect and designer Patricia Urquiola. In all, the building has about 60 levels worth of green walls which are overlaid onto the building's red facade. In addition, four communal sky gardens are cut into the building, allowing for natural ventilation of the public spaces in lieu of air conditioning. Plants, trees and water features in the elevated gardens also attract wildlife, including insects and birds. The building, which replaced a park, provides about ten times the greenery of the previous site area. Approximately 40 percent of the building's volume is dedicated to open-air sky terraces About 18 species of wildlife have been attracted to the building, comparable to nearby parks, according to a biodiversity study conducted by BioSEA. The building sites on a 50 meter by 50 meter plot of land. It has a barrel-shaped roof, whose facade does not contain climbing vines. The intent of the design is to mimic a bouquet with a green stem once the creepers on the building's facade are fully-grown. No mechanical ventilation is needed for the hotel rooms or offices because of the open-sided sky gardens. Water for irrigation of the plant life comes from rainfall. Awards Since its completion, the building has received a number of architectural recognition from different bodies. In 2017, it received a Green Good Design Award from the European Centre for Architecture Art Design and Urban Studies and the Chicago Athenaeum, a Singapore Good Design Mark Platinum award from the Design Business Chamber Singapore, and was also named Building of The Year at the Singapore Institute of Architects Architectural Design Awards. The hotel was also the recipient of the Urban Land Institute's 2017-2018 Global Awards for Excellence. The hotel won for its facade which is filled with greenery and stood out among Singapore's concrete, steel, and glass buildings. In 2018, the Council on Tall Buildings and Urban Habitat gave the building the year's Best Tall Building Worldwide honour, as well as the Best Tall Building Asia and Australasia] The building was the recipient of the Design of the Year 2018 award conferred by The President*s Design Award (P*DA), Singapore’s highest honour for designers and designs across all disciplines.