itaru/taku/COL. is a multi-diciplinary partnership led by Itaru Yamamoto and Taku Inagaki.

The studio, based in Yokohama / Tokyo, was founded in 2018, and has won multiple design competitions / awards since its establishment.


"COL." stands for "Collaboratives", a concept that expresses our studio's philosophy of how collaboration and multi-disciplinary approach is quint-essential for creating novelty in our era.

The studio engages in a wide variety of fields ranging from product design, architecture to urban design.


  - 1st Prize  : Daitokentaku Architecture Competition 2016

  - 2nd Prize : Central Glass International Architecture Competition 2015

  - Honorable Mention : Central Glass International Architecturer Competition 2016


  - JA 111  Living Together  "Izumi Project"

​  - 住宅特集 2018年11月号 「家びらき」 "いづみ tea & bar+GAZEBO"


Itaru yamamoto

1987  Born in Yokohama, Japan

2002-2006  Resided in Oxford, UK  

2011  Keio University, B. Arch

2014  University of Tokyo, Master Degree

2011-12  Tomorrow’s Opportunities in architecture

2012-15  Riken Yamamoto & Field Shop Co., Ltd.

2016-18  Assistant professor at Tokyo Metropolitan University

2017  itaru/taku/COL.



taku inagaki

1987  Born in Japan

1994-2002  Resided in Portland, Oregon / Long Island, NY / Dallas, TX, USA

2010  University of Tokyo, B. Arch

2011  Technical University of Lisbon (AUSMIP Program)

2013  University of Tokyo, Master Degree

2013-17  Yamashita Sekkei Inc.

2017  itaru/taku/COL.