Japan’s best-designed offices — one company, one walkthrough
OFFICES › SAKAI, OSAKA › STELLA CHEMIFA

Office · Sakai, Osaka · Manufacturing

Stella Chemifa — Sakai: a research building for a century-old chemical maker, with its history hung on a picture rail

Stella Chemifa was founded in Sakai in 1916 and turned 100 in 2016. To speed up the path from research to product, it brought R&D from two factories into one new building — the Next-Generation Materials Research Building, on the site of its Sanbo plant facing Osaka Bay.

Company Stella Chemifa Corporation (ステラケミファ株式会社) ↗Founded 1916, in Sakai, OsakaBuilding Next-Generation Materials Research Building, Sanbo plant, Sakai-ku, SakaiBrought together R&D from the Sanbo plant (Sakai) and the Izumi plant (Izumiotsu)Meeting rooms A reception room on 1F; three eight-person rooms and a large room on 3FOffice design Okamura Corporation
The entrance
The entrance

Concept

The last hundred years, and the next

Among the metal pipes and plant of an industrial site, the new building gathers sunlight and looks bright and clean. Inside, wood covers floors and ceilings. Okamura’s idea was to design for “the next hundred years” while making the company’s history visible — past, present and future meeting to produce, in the designers’ words, a new chemical reaction.

Researchers traditionally work shut away. Here, a visitor route lets guests look into the R&D areas through corridor windows, and the 4th-floor office has no walls at all.

The entrance
The entrance
The 4th-floor work area
The 4th-floor work area

01 · Entrance

Fibreglass rods for a partition

The entrance is the face of the company: a chemical maker’s clean look, softened with wood and plants. Meetings and visitors can be handled here, in a meeting space divided off by a partition of thin glass-fibre rods that keeps it private while leaving the space open.

The entrance
The entrance
The entrance
The entrance
The meeting space
The meeting space

02 · History wall

A century on acrylic plates

Beside the entrance is a history wall. Acrylic plates hang from a picture rail, recording events and products from 1916 to today. Plates can be moved or added, so the wall keeps growing as the company does.

The history wall
The history wall
The history wall
The history wall
The visitor route
The visitor route

03 · Meeting rooms

Where shall we meet today?

On the 1st floor, a reception meeting room in calm tones leads straight from the entrance. On the 3rd floor are three meeting rooms for eight and one large meeting room.

The reception meeting room
The reception meeting room
Meeting room 1
Meeting room 1
Meeting room 2
Meeting room 2
The large meeting room
The large meeting room

04 · Work area

A pillar that became a sofa

The 4th floor has no walls. Fixed desks and free-address seats work side by side, with tables on casters for team work and counter seats and booths by the windows. The two zones are separated only by a change of floor material at the pillars — and the central pillar, with sofas on either side, gently divides the room.

The work area
The work area
The work area
The work area
The work area
The work area
Large personal lockers
Large personal lockers

05 · Refresh area

An oasis with a view

The 5th floor is a refresh area looking out over the surroundings. Plants in the middle of a big table give people privacy to think alone over a coffee; booths with high backs let friends talk quietly.

The 5th-floor refresh area
The 5th-floor refresh area
The 5th-floor refresh area
The 5th-floor refresh area
CompanyStella Chemifa Corporation ↗
DesignOkamura Corporation
Photography© Okamura Corporation (from Okamura’s Design Stories)
Sourceオカムラ Design Stories, “ステラケミファ株式会社様の事例”, re-reported by WALL ↗
PublishedOctober 2026
OFFICEMILL — explore offices across Japan
Planning an office in Japan?The design and build firms behind the offices on WALL are listed on our Partners page.
SEE PARTNERS