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OFFICES › NAGATACHō, TOKYO › MITSUBISHI RESEARCH INSTITUTE

Office · Nagatachō, Tokyo · Research & consulting

Mitsubishi Research Institute — Nagatachō: a room where talking is banned and the scent changes with the season

Japan’s best-known think tank sits beside the National Diet. Its floor is free address and full of places to talk — and then there is one room where private conversation, phones, video calls and food are all forbidden, and the aroma changes with the season.

Company Mitsubishi Research Institute, Inc. (三菱総合研究所)Location Tokyu Capitol Tower, Nagatachō, Chiyoda, Tokyo — directly connected to Kokkai-gijidomae and Tameike-sannō stationsDesks Free addressMeeting areas On every floor, from a few people to more than 100Focus room No talking, no mobile phones, no web meetings, no eating; seasonal aromaAlso Medical room with a nurse on duty, mothers’ room, lockersWebsite mri.co.jp ↗
The communication area
The communication area

Concept

Real and remote, held together

The institute has rebuilt its office around a working pattern it calls the new normal: free address, booths for video calls, areas made to encourage people to talk, and the equipment to run a meeting with half the room present and half of it at home. Most meetings now run that way.

The stated aim is that the individual keeps their autonomy and their difference, and can still work through whatever stage of life they are in. The floor is the argument for it.

Planting and pendant lights
Planting and pendant lights
The curved counter
The curved counter

01 · Communication areas

From two people to a hundred

Every floor carries meeting equipment for anything from a pair to more than a hundred people, used for meetings, for chat and for drinks after hours. At lunchtime a balanced bento is sold there, so it doubles as where people eat. One area holds a large collection of books, used before work and after it.

Counter and booth seating
Counter and booth seating
Café tables
Café tables
Armchairs at the window
Armchairs at the window
Tables on an open floor
Tables on an open floor

02 · Work floor

Choose the desk

The working floor is free address — come in and take whichever desk suits. Small-group settings are scattered through it so that a quick conversation does not need a booking.

The work floor
The work floor
Round tables on the floor
Round tables on the floor
Seating between the desks
Seating between the desks

03 · Meeting rooms and booths

For the other half of the call

Rooms for meetings with people outside the company sit behind glass along one edge of the floor. Demand for video calls has grown, so telecom booths were added.

A meeting room
A meeting room
Glazed rooms along the floor
Glazed rooms along the floor
A telecom booth
A telecom booth

04 · The focus room

Four things you may not do

The room the institute calls the focus room exists for solo work, and the rules are the point: no private talking, no mobile phone use, no web meetings and no eating, so that creativity, quality of work and productivity are supported rather than assumed. The aroma in the room changes with the season, which is described as a relaxation effect.

Desks in the focus room
Desks in the focus room
Focus booths
Focus booths
A row of focus desks
A row of focus desks

05 · Reception

A room that explains the company

Because the institute hosts committees, briefings for the press and accelerator programmes, the reception area carries a space that introduces what it publishes and what it is working on.

The reception
The reception
The display shelves
The display shelves

06 · Care

A nurse, and a room for mothers

A medical room with a nurse on duty, and a mothers’ room for staff with young children, finish the floor, along with the lockers that free address requires.

The corridor to the medical room
The corridor to the medical room
The mothers’ room
The mothers’ room
Inside the mothers’ room
Inside the mothers’ room
Lockers
Lockers
CompanyMitsubishi Research Institute, Inc.
Design[to confirm]
Photography© Mitsubishi Research Institute, Inc. (from the company’s own recruiting site)
SourceMRI, “Office”, re-reported by WALL ↗
PublishedSeptember 2026
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