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Office · Hibiya, Tokyo · Professional services

EY Shinnihon — Hibiya: yellow, and a room called wavespace

An audit firm on the upper floors of Tokyo Midtown Hibiya puts one colour through a very large office — on a curved screen, on a booth, on a stack of seminar chairs — and keeps a separate room for the work that is not auditing.

Firm EY ShinNihon LLC (EY新日本有限責任監査法人)Tokyo office 1-1-2 Yurakucho, Chiyoda-ku — Tokyo Midtown Hibiya, Hibiya Mitsui TowerStated aim An office that pursues work performance, communication and flexible working thoroughlyReception The EY Japan main reception, shared across the member firmsWorking space Named by the firm as HUB space, monitor space, JIT rooms and spaces, and Surface HubLibrary A shelved room with high tables, on the working floorVisitor side A separate visitor reception with its own meeting roomsEY wavespace The firm’s innovation space, listed as a room of its ownThe Hub A large internal space used for seminars and gatheringsShown Reception, working space, library, visitor rooms, wavespace, The Hub
The EY Japan reception
The EY Japan reception

Concept

One colour, doing all the signposting

The office is large enough that a visitor could lose the thread of it, and the firm has solved that with a single yellow. It appears as the curved felt screen that shields a pair of chairs, as the upholstery of a two-person booth, as the wall of a meeting nook, as the run of chairs in the seminar room, and as the panel behind the reception sofa. Nothing else in the palette competes: the floor is grey, the walls are white, the desks are pale.

What the colour marks, consistently, is the places where you stop working alone. The desk rows are colourless. The booths, the nooks, the lounge and the seminar room are yellow. It is a wayfinding system disguised as decoration, and it means that from anywhere on the floor you can see where the nearest conversation is meant to happen.

A yellow booth
A yellow booth
The lounge
The lounge

01 · Reception

The mark, on black stone

The EY Japan main reception is a low black counter under a pale timber ceiling, with the mark set on the wall behind it. Beyond it a corridor runs under a slatted ceiling toward the office floors.

The EY Japan reception
The EY Japan reception
The corridor
The corridor

02 · The working space

HUB, monitor, JIT

The firm names four things in the working space: HUB space, monitor space, JIT rooms and spaces, and Surface Hub. In practice that is an open floor of desks with screens, a white counter with stools at one end, and a long run of workstations under the windows.

The open floor
The open floor
The floor, from the other end
The floor, from the other end
The counter
The counter
A quiet corner
A quiet corner
Desks
Desks
Desks with monitors
Desks with monitors
The long run
The long run

03 · Where you stop working alone

Yellow, in five forms

A nook with an orange wall, a curved yellow screen, a two-person booth, a pair of booths side by side, and a lounge with soft seating. The firm lists none of them separately; they are simply what the working floor is made of between the desks.

A meeting nook
A meeting nook
The curved screen
The curved screen
A booth
A booth
Two booths
Two booths

04 · The library

Shelves, and a high table

The library is a shelved wall with a long high table in front of it. For an audit firm it is a working room rather than a decorative one, and it is placed on the same floor as the desks.

The library
The library
The reading table
The reading table

05 · The visitor side

A second reception

The visitor reception and its meeting rooms are kept apart from the working floor: a lounge with a yellow screen, a presentation room with a wall-sized display, a meeting room looking out over the city, and a glazed room off the corridor.

The visitor lounge
The visitor lounge
The presentation room
The presentation room
A meeting room
A meeting room
A glazed room
A glazed room

06 · wavespace and The Hub

The two named rooms

EY wavespace is the firm’s innovation space — a dark counter with a screen above it. The Hub is the large room that takes seminars and gatherings: rows of yellow chairs in front of a wall of displays, and beyond it a lounge and a canteen.

wavespace
wavespace
The Hub
The Hub
The lounge
The lounge
The canteen
The canteen
FirmEY ShinNihon LLC
Photography© EY ShinNihon LLC (from the firm’s own graduate recruiting site)
SourceEY新日本有限責任監査法人, “オフィスツアー”, re-reported by WALL ↗
PublishedSeptember 2026
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