April 26th, 2021
Press Release
Mitsubishi Jisho Sekkei Inc.

Opening Announcement for LIXIL WING HOSHI BUILDINGIn 2019, LIXIL, maker of pioneering water and housing products erected a new, customdesigned building HOSHI. Consolidating its headquarters, the HOSHI building became
the fourth building on the LIXIL WING campus, joining KAZE, HIKARI, and NIJI buildings.
（KAZE, HIKARI, NIJI and HOSHI mean respectively wind, light, rainbow and star inJapanese）
This project consolidates LIXIL’s global headquarter functions from the Kasumigaseki
Building to the LIXIL WING campus, accommodating a diverse workforce of over 5,000
people that promotes flat and open communication and realize faster decision-making.
Located in the east of the bustling Tokyo metropolis, WING campus looks out over a quiet
River, the lush greenery of a park, and a stunning backdrop of the Tokyo Skytree.

CONTACT︓Mitsubishi Jisho Sekkei Inc.
Marunouchi 2-chome Building, 2-5-1 Marunouchi, Chiyodaku Tokyo 100-0005 Japan
www.mj-sekkei.com

The
naturalandopen
environment allows pleasantseasonal wind blow throughthe site.

Site Plan

1F PlanLeveraging its natural surroundings and its open-ness, the building is installed with
LIXIL’s own, newly developed hybrid ventilation system in the HOSHI building for a
comfortable and eco-friendly “breathable office”. The new system includes automatedcurtainwalls that draw the optimum amount of wind based on an index that monitors
comfort with its analysis of internal and external air quality; temperature, humidity andwinds or other factors of the weather. Installed ahead of the current rising demand for
improved ventilation of buildings, the technology provides the benefits of natural air anda taste of the seasons for employees, while it also minimizes its dependency on airconditioning.

Ventilation panels are painted
in traditonal blue colors.

4F PlanFacade detail section

Facade detail plan

A variety of communication spaces are created around the office, like an open kitchensand high counters, to encourage informal discussions for improved understanding andcollaboration. Places like café and rooftop terrace also provide more choices of free andflexible ways of working. With a variety of free spaces, the building is not just an officespace with desks to go to, but also a place for exchanging diverse ideas and conceiving
new values.

Communication spacearound the stairs
promotes interaction andinformal conversation.

Rooftop terrace is alsoavailableforallemployees.

From installing its leading water and housing solutions, to the use of 100% renewableenergy and its incorporation of new HR initiatives to embrace new ways of working indesign, LIXIL’s new Global Headquarters is designed to reflect the company’s businessand corporate responsibility strategies and its commitment to circularity and inclusivity –to make better homes a reality for everyone, everywhere.

Perspective Section

LIXIL WING HOSHI BUILDING
Architects: Mitsubishi Jisho Sekkei
Completion: 2019
Location: Tokyo, Japan
Building Use: OfficeSite Area: 18,680 ㎡

Total Floor Area: 14,408 ㎡
Floors:8 above ground
Structure: S (Seismic Isolation)
Photographs: FOTOTECA
Manufacturers: LIXIL, DINAONE, KAWASHIMA SELKON TEXTILES