Toranomon-Azabudai District Main Tower

Tokyo

Note: As this project is architecturally topped out, the data is based on the most reliable information currently available. This data is thus subject to change until the building has completed and all information can be confirmed and ratified by the CTBUH.

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    Metrics
Height 325.2 m / 1,067 ft
Floors 64
Official Name
The current legal building name.

Toranomon-Azabudai District Main Tower

Other Names
Other names the building has commonly been known as, including former names, common informal names, local names, etc.

Tora Asa, Toranomon-Azabudai District A Town Block, Aman Residences, The British School in Tokyo

Name of Complex
A complex is a group of buildings which are designed and built as pieces of a greater development.

Toranomon-Azabudai District

Type
CTBUH collects data on two major types of tall structures: 'Buildings' and 'Telecommunications / Observation Towers.' A 'Building' is a structure where at least 50% of the height is occupied by usable floor area. A 'Telecommunications / Observation Tower' is a structure where less than 50% of the structure's height is occupied by usable floor area. Only 'Buildings' are eligible for the CTBUH 'Tallest Buildings' lists.

Building

Status
Completed
Architecturally Topped Out
Structurally Topped Out
Under Construction
Proposed
On Hold
Never Completed
Vision
Competition Entry
Canceled
Proposed Renovation
Under Renovation
Renovated
Under Demolition
Demolished

Architecturally Topped Out

Expected Completion

2023

Country
The CTBUH follows the United Nations's definition of Country, and thus uses the lists and codes established by that organization.

Japan

City
The CTBUH follows the United Nations's definition of City, and thus uses the lists and codes established by that organization.

Tokyo

Address

Azabudai 1-chome, Minato Ward

Function
A single-function tall building is defined as one where 85% or more of its usable floor area is dedicated to a single usage. Thus a building with 90% office floor area would be said to be an "office" building, irrespective of other minor functions it may also contain.

A mixed-use tall building contains two or more functions (or uses), where each of the functions occupy a significant proportion of the tower's total space. Support areas such as car parks and mechanical plant space do not constitute mixed-use functions. Functions are denoted on CTBUH "Tallest Building" lists in descending order, e.g., "hotel/office" indicates hotel function above office function.

Residential / Office / Education

Height
Architectural
Height is measured from the level of the lowest, significant, open-air, pedestrian entrance to the architectural top of the building, including spires, but not including antennae, signage, flag poles or other functional-technical equipment. This measurement is the most widely utilized and is employed to define the Council on Tall Buildings and Urban Habitat (CTBUH) rankings of the "World's Tallest Buildings."

325.2 m / 1,067 ft

To Tip
Height is measured from the level of the lowest, significant, open-air, pedestrian entrance to the highest point of the building, irrespective of material or function of the highest element (i.e., including antennae, flagpoles, signage and other functional-technical equipment).
325.2 m / 1,067 ft
Floors Above Ground
The number of floors above ground should include the ground floor level and be the number of main floors above ground, including any significant mezzanine floors and major mechanical plant floors. Mechanical mezzanines should not be included if they have a significantly smaller floor area than the major floors below. Similarly, mechanical penthouses or plant rooms protruding above the general roof area should not be counted. Note: CTBUH floor counts may differ from published accounts, as it is common in some regions of the world for certain floor levels not to be included (e.g., the level 4, 14, 24, etc. in Hong Kong).

64

Floors Below Ground
The number of floors below ground should include all major floors located below the ground floor level.

5

# of Apartments
Number of Apartments refers to the total number of residential units (including both rental units and condominiums) contained within a particular building.

91

Tower GFA
Tower GFA refers to the total gross floor area within the tower footprint, not including adjoining podiums, connected buildings or other towers within the development.

461,292 m² / 4,965,306 ft²

Construction Schedule

2017

Proposed

2019

Construction Start

2023

Completed

Owner/Developer
Mori Building
Architect
Design

Usually involved in the front end design, with a "typical" condition being that of a leadership role through either Schematic Design or Design Development, and then a monitoring role through the CD and CA phases.
Pelli Clarke & Partners
Contractor
Main Contractor

The main contractor is the supervisory contractor of all construction work on a project, management of sub-contractors and vendors, etc. May be referred to as "Construction Manager," however, for consistency CTBUH uses the term "Main Contractor" exclusively.
Shimizu Corporation
Other Consultant

Other Consultant refers to other organizations which provided significant consultation services for a building project (e.g. wind consultants, environmental consultants, fire and life safety consultants, etc).
Façade

These are firms that consult on the design of a building's façade. May often be referred to as "Cladding," "Envelope," "Exterior Wall," or "Curtain Wall" Consultant, however, for consistency CTBUH uses the term "Façade Consultant" exclusively.
Permasteelisa Group
Foundation
Shimizu Corporation
Planning
Heatherwick Studio
Owner/Developer
Mori Building
Architect
Design

Usually involved in the front end design, with a "typical" condition being that of a leadership role through either Schematic Design or Design Development, and then a monitoring role through the CD and CA phases.
Pelli Clarke & Partners; Sou Fujimoto Architects
Architect of Record

Usually takes on the balance of the architectural effort not executed by the "Design Architect," typically responsible for the construction documents, conforming to local codes, etc. May often be referred to as "Executive," "Associate," or "Local" Architect, however, for consistency CTBUH uses the term "Architect of Record" exclusively.
Nihon Sekkei
Contractor
Main Contractor

The main contractor is the supervisory contractor of all construction work on a project, management of sub-contractors and vendors, etc. May be referred to as "Construction Manager," however, for consistency CTBUH uses the term "Main Contractor" exclusively.
Shimizu Corporation
Other Consultant

Other Consultant refers to other organizations which provided significant consultation services for a building project (e.g. wind consultants, environmental consultants, fire and life safety consultants, etc).
Façade

These are firms that consult on the design of a building's façade. May often be referred to as "Cladding," "Envelope," "Exterior Wall," or "Curtain Wall" Consultant, however, for consistency CTBUH uses the term "Façade Consultant" exclusively.
Permasteelisa Group
Foundation
Shimizu Corporation
Interiors
Yabu Pushelberg
Marketing
Aman Resorts; Bezier Studios; D-BOX
Planning
Heatherwick Studio
Property Management
Aman Resorts

Global News

26 April 2022

Japan's Tallest Tower Tops Out In Toranomon, Tokyo

The 64-story skyscraper in the Toranomon-Azabudai Project topped out at 325.2 meters on April 21, 2022. This is now the tallest building in Japan, exceeding...

See more

Global News

26 April 2022

Japan's Tallest Tower Tops Out In Toranomon, Tokyo

The 64-story skyscraper in the Toranomon-Azabudai Project topped out at 325.2 meters on April 21, 2022. This is now the tallest building in Japan, exceeding...

22 February 2021

Under-Construction Tokyo Skyscraper to Include Condos

A skyscraper now under-construction in the heart of Tokyo will have residential areas on its upper floors, with services provided by luxury hotel operator Aman...

12 May 2020

What Could be Japan's Tallest Building Project Continues Work Amid Pandemic

Yoshiko Mori’s fortune fell 19 percent to $1.4 billion, dropping along with the turmoil that has rocked global markets. The Japanese property developer she controls,...

22 August 2019

Updated Design Plans Revealed for Massive Central Tokyo Redevelopment

Mori Building Co. recently unveiled updated design plans for a massive redevelopment project in central Tokyo, including the construction of what could become Japan’s tallest...

06 March 2019

Penthouse at Tokyo Complex could be Among Japan’s Most Expensive Sales

A penthouse in Toranomon is rumored to have sold off-the-plan for 5 billion Yen (US$45 million), making it potentially one of the most expensive apartments...