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April 1972
Prof. Kubo Tadashi, mentor and teacher, founded TEDEPSO Design Institute Inc. in Osaka.

April 1986
With the retirement of Professor Kubo, the firm maintained it’s head office in Osaka, and established new offices in Tokyo, and Singapore.
Keikan Sekkei Institute, Tokyo Office began as a landscape architecture firm.

November 1998
The Tokyo office spun off from the Keikan Sekkei Institute.

December 2005
Our name changed to Keikan Sekkei Tokyo Co., Ltd.

April 2006
Keikan Sekkei Tokyo Co., Ltd. celebrated its’ 20th anniversary and continues to practice and evolve.