Oasia Hotel Downtown, Singapore
[Image © Patrick Bingham-Hall]
In December 2016, a new verdant tower of green was completed in Singapore's financial centre.
Oasia Hotel Downtown was designed by WOHA Architects and has been used as a prototype of land use intensification for the urban tropics; presenting an alternative to the sleek skyscrapers of the west.
In June 2018, the Council on Tall Building and Urban Habitat (CTBUH) gave the 16th annual Best Tall Building Worldwide award to the Oasia Hotel Downtown. Beating 48 finalists from 28 countries, the tower was chosen by a panel of architects, judged against every aspect of performance.
Antony Wood, Executive Director and Awards Juror at CTBUH said; "This project won not only because it incorporates 60 stories of green walls along the exterior, but because of its significant commitment to communal space. The tower has given over 40% of its column to open air communal terraces in the sky."
[Image © K. Kopter]
WOHA created a series of different strata, each with its own sky garden, allowing for recreational and social areas throughout the high-rise. Each sky garden is sheltered at high level by the one preceding it, with open sides for formal and visual transparency, and to allow cross-ventilation.
[Image © K. Kopter]
Landscaping forms a major part of the tower's aesthetic, used extensively as an architectural surface treatment. It achieves a Green Plot Ratio of 1,100%, and aims to become a 'haven for birds and animals', encouraging the return of biodiversity into a dense urban space.
[Image © K. Kopter]
[Image © Patrick Bingham-Hall]
The building incorporates 21 different species of 'creepers', with colourful flowers and greenery forming a mosaic on the red aluminium mesh cladding. Instead of a flat roof, the skyscraper is topped by a tropical circular bower.
[Image © Patrick Bingham-Hall]
Images and content courtesy of WOHA Architects.
[edit] Find out more
[edit] Related articles on Designing Buildings Wiki
Featured articles and news
Applications and benefits of acoustic flooring
From commercial to retail.
From solid to sprung and ribbed to raised.
Strengthening industry collaboration in Hong Kong
Hong Kong Institute of Construction and The Chartered Institute of Building sign Memorandum of Understanding.
A detailed description fron the experts at Cornish Lime.
IHBC planning for growth with corporate plan development
Grow with the Institute by volunteering and CP25 consultation.
Connecting ambition and action for designers and specifiers.
Electrical skills gap deepens as apprenticeship starts fall despite surging demand says ECA.
Built environment bodies deepen joint action on EDI
B.E.Inclusive initiative agree next phase of joint equity, diversity and inclusion (EDI) action plan.
Recognising culture as key to sustainable economic growth
Creative UK Provocation paper: Culture as Growth Infrastructure.
Futurebuild and UK Construction Week London Unite
Creating the UK’s Built Environment Super Event and over 25 other key partnerships.
Welsh and Scottish 2026 elections
Manifestos for the built environment for upcoming same May day elections.
Advancing BIM education with a competency framework
“We don’t need people who can just draw in 3D. We need people who can think in data.”
Guidance notes to prepare for April ERA changes
From the Electrical Contractors' Association Employee Relations team.
Significant changes to be seen from the new ERA in 2026 and 2027, starting on 6 April 2026.
First aid in the modern workplace with St John Ambulance.
Solar panels, pitched roofs and risk of fire spread
60% increase in solar panel fires prompts tests and installation warnings.
Modernising heat networks with Heat interface unit
Why HIUs hold the key to efficiency upgrades.




























