DUO, a sculptural mixed-use complex integrating living, working and retail spaces with public gardens and cultural installations has been officially completed in Singapore.

The project, designed by the practice of German architect Ole Scheeren, is significant from both an architectural and political perspective – as it represents a historic collaboration between the governments of Malaysia and Singapore through their respective state investment arms Khazanah and Temasek.

Singapore was once a state of Malaysia, but separated to become an independent nation in August 1965 as a result of deep political and economic divisions.

According to Scheeren, DUO “shows how architecture can become a tool of reconciliation within an otherwise disparate and fragmented urban context.”

“This is a joint venture between two countries, and the project has come to represent this important duality,” he said. “Our architecture articulates the dynamic relationship of two urban figures and generates symbiotic effects beyond the project itself with a positive impact on the larger context.

“The project also repairs a broken piece of the city and celebrates public life as the central quality of a socially responsible urban environment.”

DUO – which includes residences, offices and a luxury Andaz hotel with interiors by Andre Fu – is situated on the main route into the city from Singapore’s Changi Airport and nestled between the historic Kampong Glam district and vibrant commercial Bugis Junction.

The design is conceived as “a process of subtraction,” with smooth circular spaces carved from the building’s mass and a series of vertical offsets and cantilevers used to create spaces for the public realm. Stretched across the skin of the towers is an intricate honeycomb texture that features a series of hexagonal sunshades that help protect the structures from the heat and glare of the sun, while also providing texture to the concave curves.

The ground floor of the development is free 24/7 for public use, as are the surrounding plazas and gardens.

“The main gesture of DUO is to give something back to the city,” says Scheeren. “We didn’t want a gated community or a privatised space, so we created a 24-hour accessible public realm that connects to all of the different aspects of the surrounding city. The landscape is conceived as something highly organic and completely permeable – its liquid geometry allows you to flow through the site in almost any direction. It’s a celebration of public access and activity.”

It has been a busy year for Scheeren, who has recently completed the Guardian Art Center on the doorstep of Beijing’s historic Forbidden City and revealed designs for a series of high-rise landscaped towers in Ho Chi Minh City, Vietnam and a stacked residential high-rise in Frankfurt, Germany.