eciffo / Buildings / Kioi Tower

Kioi Tower

Headquarters of LY Corporation · 1-3 Kioicho, Chiyoda-ku, Tokyo 102-8282

Glass office tower above cherry blossoms — Kioi Tower, Tokyo Garden Terrace Kioicho · Photo courtesy of Nikken Sekkei

Office floor with long tables, chairs and booths by windows — Kioicho office floor · Photo: LY Corporation

Long wooden counter under a curved white ceiling by windows — Dining area, Kioicho · Photo: LY Corporation

Base of a glass tower with a colourful flower sculpture and taxis in front — Entrance of Tokyo Garden Terrace Kioicho · Edomura no Tokuzo / CC BY-SA 4.0 · Wikimedia Commons

Tower with stacked glass blocks seen across an elevated road — Kioi Tower · Kakidai / CC BY-SA 4.0 · Wikimedia Commons

In numbers

Architect: Nikken Sekkei, with Kohn Pedersen Fox Associates
Developer: Seibu Properties
Total floor area: 227,200 m² (≈ 2,445,600 sq ft)
Site area: 30,360.19 m² (≈ 326,800 sq ft)
Height: 177.65 m
Completed: 2016
Heritage: Former Korean Imperial Family residence preserved and restored on site

Source: Nikken Sekkei project page “Tokyo Garden Terrace Kioicho” (whole development: office/hotel tower and residential tower). Yahoo Japan's 2014 notice described the office/hotel tower as 36 floors above ground and 2 below.

Questions

Where is Kioi Tower?

Kioi Tower is at 1-3 Kioicho, Chiyoda-ku, Tokyo 102-8282. It is the headquarters of LY Corporation.

Who designed Kioi Tower?

Architect: Nikken Sekkei, with Kohn Pedersen Fox Associates. Source: Nikken Sekkei project page “Tokyo Garden Terrace Kioicho” (whole development: office/hotel tower and residential tower). Yahoo Japan's 2014 notice described the office/hotel tower as 36 floors above ground and 2 below.

When did LY Corporation come to Kioi Tower?

2016: Kioi Tower, 1-3 Kioicho, Chiyoda City. In October 2016 Yahoo Japan moved to Kioicho, to bring its offices together as staff numbers grew. The 2014 announcement said it would take 20 of the 24 office floors in the new office and hotel tower on the site of the Grand Prince Hotel Akasaka, which closed in March 2011.

Kioi Tower in LY Corporation’s history

2016
Kioi Tower, 1-3 Kioicho, Chiyoda City
In October 2016 Yahoo Japan moved to Kioicho, to bring its offices together as staff numbers grew. The 2014 announcement said it would take 20 of the 24 office floors in the new office and hotel tower on the site of the Grand Prince Hotel Akasaka, which closed in March 2011.
2023
LY Corporation, still in Kioicho
In October 2023 Z Holdings, LINE Corporation and Yahoo Japan Corporation reorganized into LY Corporation. The registered head office stays at Kioi Tower.