Who was the lead architect of Taipei 101 in Taiwan?

C. Y. Lee was the lead architect of Taipei 101 in Taiwan.

Lee, working with his architecture firm C. Y. Lee & Partners, led the design of the tower, which was developed with structural engineering by Thornton Tomasetti. Taipei 101 was built in Taipei’s Xinyi District and officially opened on December 31, 2004.

The design combines modern engineering with references to traditional East Asian forms. Its stacked sections are often associated with bamboo, while decorative details draw on Chinese cultural symbolism. The tower rises in eight major sections, with eight regarded as an auspicious number in Chinese culture.

Taipei 101 reached an architectural height of 508 metres and was the world’s tallest building from its opening until Dubai’s Burj Khalifa surpassed it in 2010. It is also known for its large tuned mass damper, which helps reduce movement caused by wind and earthquakes.

The architect’s name is also rendered as Lee Chu-yuan. That alternate romanization refers to the same architect, not a different designer.