CTBUH Silver Member

Mitsubishi Jisho Sekkei


Member Offices: Tokyo

Website: https://www.mj-sekkei.com/

The origins of Mitsubishi Jisho Sekkei reach back to 1890 and the establishment of the Marunouchi Architectural Office, which was founded by the Mitsubishi Company to develop a business center for modern Japan in the Marunouchi district of Tokyo. In the 125 years since then, we have been involved as an integrated urban and architectural design firm in many epoch-making projects, offering services that range from urban and project planning to architectural design, interior design, and consulting, in response to the requirements of our customers and the aspirations of society. After decades as the in-house design organization of Mitsubishi Estate Company, we became an independent design firm in 2001 and are now active not only in Japan but throughout Asia, including China, Korea, Singapore, and Vietnam.

In the 21st century, architecture and the city will be expected to contribute to the realization of a low-carbon society that coexists with nature and to provide safety, security, and a highly livable environment in addition to functionality and efficiency. Since the Great East Japan Earthquake, diversification of energy sources and business continuity planning have emerged as important new challenges. The development of information and communications technology will have a great impact on cites and architecture, together with demographic changes such as the declining birth rate and aging of society.

In this era of dramatic change, we are constantly striving to offer better designs, better technology, and better proposals. By engaging in a continuous dialog with our customers, we are working to help build a better society.

Fields of Expertise

Architecture; Urban Design

Membership details

Membership Level


Member Since

Member Offices

  • Tokyo




Architecturally Topped Out

Structurally Topped Out

Under Construction

On Hold



Never Completed


Competition Entry


Proposed Renovation

Under Renovation


Under Demolition



Taipei Nanshan Plaza

271.5 m / 891 ft


Daswin Building

263 m / 863 ft



242 m / 794 ft


Tokiwabashi Tower

212 m / 696 ft


The Parkhouse Nishi Shinjuku Tower 60

209 m / 686 ft


Japan Post Tower

200.1 m / 656 ft


The Okura Prestige Tower

184.3 m / 604 ft


Toranomon 2 Chome District Redevelopment

180 m / 591 ft


Grand Front Osaka Tower A

179.4 m / 588 ft


Otemachi Place West Tower

179 m / 587 ft

Building Completions Timeline



01 September 2017

Structural Design and Performance Evaluation of a Mid-story Seismic Isolated High-Rise Building

This paper describes some of the challenges for structural design of a mid-story seismic isolated high-rise building, which is located near Tokyo station, completed in...

Global News

25 January 2021

Design Revealed for Crown of Tokyo Tower

Japanese architect Sou Fujimoto has announced that he and his eponymous firm will be designing the crown of Torch Tower, a cloud-brushing centerpiece of a...

Global News

20 November 2020

Construction Starts on 180-Meter-Tall Office Tower in Tokyo

Construction has started on a 180-meter-tall office tower in Tokyo's Toranomon district. The Toranomon 2-Chome district Redevelopment project is located on the same block as...

Associated companies


150 m+ Buildings

Average Building Age*

11 Years

Most Common Function*

Office (52%), 15 Buildings

Most Common Material*

Steel (55%), 12 Buildings

* Based on 150 m+ buildings currently in the database.

Total: 29 Buildings for which a function has been assigned.
Total: 22 Buildings for which a material has been assigned.

*Based on 29 Completed & Under Construction Buildings

Building Completions Timeline


Construction Time Chart

NOTE: Construction start time is not available for all buildings. The average construction time is only displayed if there is three or more buildings with construction start and complete data in that year.