Mitsui & Co. Headquarters / A Head Office Accelerating Intellectual Chemical Reactions

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Workplace Design Project for the New Headquarters Following the Reconstruction of the Mitsui & Co. Headquarters Building in Otemachi
At NAD, we oversaw work process design, concept book development, workplace concept development, workplace design, user interface design for the location app, furniture design, and signage design.
Conceived around the question of what a headquarters means in today’s world—where people can work anytime, anywhere—Mitsui & Co.’s new headquarters is a high-quality space for experiences where diverse individuals gather to generate new challenges and creativity through serendipitous encounters and spontaneous collaboration.
By vertically stacking functions—such as executive floors, office floors, facility floors (including a clinic), the employee cafeteria, and the visitor cafeteria—throughout the entire headquarters, the design strengthens and promotes collaboration both within and outside the company, creating a “headquarters that accelerates intellectual chemical reactions” by incorporating a diverse range of activities.We have created an environment incorporating various innovative features so that each employee can proactively choose and utilize their work style and space according to their work situation and tasks, step out into the business world, and generate new value.

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Design Management: From Work Processes to Workplaces

Work Process Concept Book

Through workshops with Mitsui & Co. employees, interviews with employees, and interviews with management, we identified future ways of working (desirable user experiences) and created a concept book to inform subsequent discussions.

Building Together

We referred to the key venue for realizing Mitsui & Co.’s vision as “CAMP,” and through repeated discussions with Mitsui & Co. project members, we worked together to create a space that delivers the desired user experience.

CAMP Development Workshop

To finalize the design, we held a design concept workshop and worked with the Mitsui & Co. project team to develop specific design concepts.
During the workshop, we managed the design process to ensure alignment between Mitsui & Co.’s vision for internal activities and the image of the space, thereby bringing the users’ work environments to life.

Scenes from the Design Concept Workshop

A Workplace That Welcomes People

Since open innovation is essential for creating new business opportunities, this workplace is designed to foster value creation that engages both internal and external stakeholders.

The workplace is divided into five zones, centered around “CAMP,” an area designed to support the knowledge creation process.CAMP is located on the west side, facing the Imperial Palace. Running north to south are the “STUDIO” areas, each assigned a specific address for each department; “GATE,” located at the floor entrance and equipped with Private lockers; “TOUCHDOWN,” designed for casual meetings; and “Conference Rooms” situated along the hallway.Both CAMP and the meeting rooms are open to external partners, with the plan designed to promote value creation that involves both internal and external stakeholders.

What is CAMP?

CAMP is a space designed to identify business opportunities, refine business models, formalize and systematize them, and enhance new corporate value as Mitsui & Co. It is also an environment that supports the practical implementation of the knowledge creation process.
There are three types of CAMP: “SOCIAL,” for building rapport with colleagues and sharing tacit knowledge; “CO-WORK,” suited for teamwork to develop strategies; and “FOCUS,” for reflecting on practical business experiences and deepening one’s thinking.
These different types of CAMP are alternately located on the standard floors from the 16th to the 28th. As you move up and down the floors, you’ll find different types of CAMP. (The 25th floor is exclusively home to “d.space,” dedicated to digital transformation.)

CAMP: SOCIAL / Flexible spaces tailored to the nature of your meetings. This space, which overlooks the Imperial Palace, features low sofas and can be used for meetings with individual or group participants.

CAMP: SOCIAL / Moving the furniture creates a spacious area where large groups can gather. It’s possible to host events using the entire CAMP space. Holding events here also helps foster interaction with other departments.

CAMP: CO-WORK / This space is designed to facilitate lively team discussions. The flexible layout, which can be adapted to accommodate teams of various sizes, is furnished with functional and user-friendly furniture. Furthermore, the open, cohesive design creates an environment that makes it easy to share information and collaborate with other teams.

CAMP: CO-WORK / With the circulation route running alongside the meeting space, you can naturally get a sense of what’s happening in other teams’ meetings and the atmosphere there.

CAMP：CO-WORK

CAMP: FOCUS / A quiet, serene space ideal for tasks requiring concentration. It features furniture designed for various types of work Private, including areas where you can focus without worrying about others watching you, as well as open spaces where people don’t make eye contact.

CAMP：FOCUS

CAMP Configuration Diagram

*The word “CAMP” derives from the Latin “campus” (camp), which means “field” or “open space” and “flat.” As part of military operations, forts were built on flat terrain and soldiers were stationed there for training; over time, the word “CAMP” itself came to mean “a place where people live together while preparing for battle.”

STUDIO / “A base for each department.” While maintaining a vertical organizational structure with established business processes, STUDIO strengthens and promotes horizontal and diagonal collaboration—such as the formation of agile cross-departmental teams and the sharing of information and ideas beyond organizational boundaries. STUDIO is an essential space for maintaining high organizational productivity.

Signage that Blends into the Space / Since this is our home and workplace, we deliberately avoided making a bold statement and kept the graphic design to the bare minimum.

We created a design template for signage suitable for a variety of activities, enabling us to continue producing various types of signs and ensuring a consistent design throughout the workplace.

A location system that tracks users' positions allows you to see who is on which floor and roughly where they are. I designed the interface for the location app.

Tea packaging design that embodies hospitality and sustainability.

Featured in the October issue of *Shin Kenchiku*
Featured in the October issue of *Modern Architecture*

Project Lead: Floors 16–28: Yuhei Hozumi (NAD)
Architectural Design
Nikken Sekkei: Hiroyuki Shirai, Tetsumichi Uchida, Fumihide Iwanaga, Takashi Suzuchi (*), Makoto Kaneko, Yukie Inoue, Yuhei Hozumi (★), Ayumi Kayahara, Yumi Masuda (*), Yui Mochizuki (*), Maimi Yoneda, Kazuhiro Sobue (★)
(★) NIKKEN ACTIVITY DESIGN lab
(*) NIKKEN WORKPLACE DESIGN LAB

CAMP Joint Design & Furniture Design / Interoffice + SIGNAL Inc.
Signage Design / Emotional Space Design
Photo/ Kenta Hasegawa

Reprinted from the Nikken Activity Lab (NAD) website

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