The architectural firm Ang Kheng Leng and Associates (1955-97), later Ang Kheng Leng and Partners (1997-2005), designed the International Plaza. Integrating apartments, sports facilities, offices and a retail mall in a single building, International Plaza epitomises the concept of living and working in the financial hub of the city. The building's design aspires to set a concept of work-life balance for its occupants, with its multiple functions and vertically-stacked amenities. International Plaza achieves its objective as a self-sufficient, downtown apartment block, making it one of the most highly successful projects of this nature to date.

Located on a 6,976-square metre (75,090 square feet) site at the junction of Choon Guan Street and Anson Road, the 50-storey commercial and residential skyscraper comprises a seven-storey triangular podium that houses a shopping centre and multi-storey carpark, and a 43-storey, octagonal-shaped tower block for offices, apartments and penthouses. International Plaza is a large mixed development with a total gross floor area of 137,930 square metres (1,484,700 square feet), built around two large internal courtyards. The entire complex is fully air-conditioned and serviced by 20 high-speed lifts and four escalators.