Historically known as an industrial district nicknamed "Black Town," Taipei’s Nangang has transformed into a centre for technology, finance, and innovation, and today functions as the city’s eastern transportation hub. Extensive urban renewal, much of it driven by public-private partnerships since the early 2000s, has introduced a wide range of new developments, resulting in a relatively uniform architectural language across the district. Within this context, it was important for the project to establish a clear and recognisable architectural gesture. The plot of Nangang Pair occupies a key point where high-speed and regional rail lines converge at Kunyang Station. Due to the intensity of this transport node, creating a conventional singular slab would interrupt the foot traffic around the station. Instead, the project splits the needed volume into two and angles the towers to create a public plaza and generous lobby spaces that accommodate the flow of people and establish a clear sense of arrival, while framing views towards Hsin Hsin Park beyond.

This ‘break’ in the massing is further emphasised through a varied facade treatment. The outer sides of the towers are clad in a glass curtain wall with protruding mullions, while the inner faces of the opening are treated with a finer, flush facade that highlights the contrast. The grid lines of the facade extend into the paving of the plaza, with the warped grid on the floor reinforcing the splitting gesture.

At ground level, the corners of the towers are cut away to create a grotto-like overhang above the lobby entrances. This geometry is supported by tilted columns along the inner edge of each tower, responding to Taiwan’s demanding seismic conditions while allowing for an open, column-free entrance.