三井不動産
The primary developer was Mitsui Fudosan, working in concert with several partners. The project was designed by architectural firm Skidmore, Owings &amp; Merrill; Nikken Sekkei is the local architect of record. Landscape architecture of the surrounding new 40,000 m² (10 acre) public park was designed by EDAW, the Suntory Museum of Art by Kengo Kuma, and the design of the retail Galleria handled by the Colorado-based CommArts.