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Office · Osaka · Architecture

Rui Sekkeishitsu — Osaka: a design office with a school on the third floor

An architecture practice in Osaka runs its own building from a farm shop on the ground floor to a theatre for three hundred and fifty on the seventh, with a school and a shared nursery in between.

Company RUI SEKKEISHITSU CO., LTD. (株式会社類設計室)Building The Rui Building, Osaka; a Tokyo head office as wellFirst floor Rui Farm direct sales shopSecond floor Reception, co-creation hall, meeting booths, reception roomsThird floor Rui Academy and a joint childcare roomFourth floor Workshop and distribution centre, for the regional co-creation divisionFifth floor Agility office — construction, education, farm and regional co-creation divisions, and managementSixth floor Agility office — design divisionSeventh floor Theatre-style conference room and salon — seats up to 350, in a circular layoutCo-creation hall Approximately 200 square metres, with glass-enclosed meeting spacesAgility office A single open floor, without partitionsWorkshop A skeleton space, left without architectural finishesRui Academy Runs from elementary through high schoolShown Reception, hall, working floors, library, meeting roomsWebsite rui.ne.jp ↗
The reception
The reception

Concept

An office building that is also a school, a farm shop and a theatre

Rui Sekkeishitsu is an architecture and engineering practice, and it also runs a cram school, a farm, and a programme of regional work. Rather than distributing those into separate premises, it has stacked them into one building, and the section drawing is the argument.

The ground floor is a shop selling the produce of the company’s own farm. The third floor is a school for children from elementary age to high school, with a shared childcare room next to it. The fifth and sixth are the design and construction offices, run as a single open floor each with no partitions at all — what the company calls an agility office. The fourth is a workshop left as a skeleton, without finishes. And the seventh is a theatre-style room seating three hundred and fifty in a circle.

The practice describes all of this under the word co-creation, and the building makes the claim testable: the people who design schools are three floors above a working one.

The moss wall
The moss wall
The agility office
The agility office

01 · The second floor

Reception, and a hall of two hundred square metres

The reception is a long white counter with flowers on it. Beyond it the co-creation hall runs to about two hundred square metres, with glass-enclosed meeting spaces set into it.

The reception
The reception
The hall
The hall

02 · The material

Moss, timber, and daylight

The interiors are built out of natural materials — a wall finished in moss behind a run of desks, timber screens, and planting brought inside.

The moss wall
The moss wall
The timber room
The timber room

03 · The agility office

One floor, no partitions

The design and construction floors are run as single open rooms with nothing dividing them, which the company calls an agility office.

The agility office
The agility office
Across the floor
Across the floor

04 · Books, models and a dark room

What a practice keeps

A library of shelving runs along one wall. Elsewhere, the model tables, and a meeting room finished dark with a screen at the end.

The library
The library
The model tables
The model tables
A meeting room
A meeting room
CompanyRUI SEKKEISHITSU CO., LTD.
DesignRUI SEKKEISHITSU CO., LTD.
Photography© RUI SEKKEISHITSU CO., LTD. (from the company’s own recruiting site)
SourceRui Sekkeishitsu, “オフィス”, re-reported by WALL ↗
PublishedSeptember 2026
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