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NBF Osaki Building
Tokyo
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Metrics
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Height
132.9 m / 436 ft
Floors
25
Official Name
The current legal building name.
NBF Osaki Building
Other Names
Other names the building has commonly been known as, including former names, common informal names, local names, etc.
Sony City Osaki
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
Completed, 2011
Country
The CTBUH follows the United Nations's definition of Country, and thus uses the lists and codes established by that organization.
City
The CTBUH follows the United Nations's definition of City, and thus uses the lists and codes established by that organization.
Address
Postal Code
141-8610
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.
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.
office
Structural Material
Steel
Both the main vertical/lateral structural elements and the floor spanning systems are constructed from steel. Note that a building of steel construction with a floor system of concrete planks or concrete slab on top of steel beams is still considered a “steel” structure as the concrete elements are not acting as the primary structure.
Reinforced Concrete
Both the main vertical/lateral structural elements and the floor spanning systems are constructed from concrete which has been cast in place and utilizes steel reinforcement bars.
Precast Concrete
Both the main vertical/lateral structural elements and the floor spanning system are constructed from steel reinforced concrete which has been precast as individual components and assembled together on-site.
Mixed-Structure
Utilizes distinct systems (e.g. steel, concrete, timber), one on top of the other. For example, a steel/concrete indicates a steel structural system located on top of a concrete structural system, with the opposite true of concrete/steel.
Composite
A combination of materials (e.g. steel, concrete, timber) are used together in the main structural elements. Examples include buildings which utilize: steel columns with a floor system of reinforced concrete beams; a steel frame system with a concrete core; concrete-encased steel columns; concrete-filled steel tubes; etc. Where known, the CTBUH database breaks out the materials used in a composite building’s core, columns, and floor spanning separately.
Both the main vertical/lateral structural elements and the floor spanning systems are constructed from steel. Note that a building of steel construction with a floor system of concrete planks or concrete slab on top of steel beams is still considered a “steel” structure as the concrete elements are not acting as the primary structure.
Reinforced Concrete
Both the main vertical/lateral structural elements and the floor spanning systems are constructed from concrete which has been cast in place and utilizes steel reinforcement bars.
Precast Concrete
Both the main vertical/lateral structural elements and the floor spanning system are constructed from steel reinforced concrete which has been precast as individual components and assembled together on-site.
Mixed-Structure
Utilizes distinct systems (e.g. steel, concrete, timber), one on top of the other. For example, a steel/concrete indicates a steel structural system located on top of a concrete structural system, with the opposite true of concrete/steel.
Composite
A combination of materials (e.g. steel, concrete, timber) are used together in the main structural elements. Examples include buildings which utilize: steel columns with a floor system of reinforced concrete beams; a steel frame system with a concrete core; concrete-encased steel columns; concrete-filled steel tubes; etc. Where known, the CTBUH database breaks out the materials used in a composite building’s core, columns, and floor spanning separately.
composite
Core
Reinforced Concrete
Columns
Concrete Filled Steel
Floor Spanning
Steel
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."
132.9 m / 436 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).
134.0 m / 440 ft
Occupied
Height is measured from the level of the lowest, significant, open-air, pedestrian entrance to the highest occupied floor within the building.
118.5 m / 389 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).
25
Floors Below Ground
The number of floors below ground should include all major floors located below the ground floor level.
2
Construction Schedule
2009
Construction Start
2011
Completed
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.
Structural Engineer
Design
The Design Engineer is usually involved in the front end design, typically taking the leadership role in the Schematic Design and Design Development, and then a monitoring role through the CD and CA phases.
MEP Engineer
Design
The Design Engineer is usually involved in the front end design, typically taking the leadership role in the Schematic Design and Design Development, and then a monitoring role through the CD and CA phases.
You must be a CTBUH Member to view this resource.
Owner
Mizuho Trust & Bank, Ltd.; Nippon Building Fund, Inc.
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.
Structural Engineer
Design
The Design Engineer is usually involved in the front end design, typically taking the leadership role in the Schematic Design and Design Development, and then a monitoring role through the CD and CA phases.
MEP Engineer
Design
The Design Engineer is usually involved in the front end design, typically taking the leadership role in the Schematic Design and Design Development, and then a monitoring role through the CD and CA phases.
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.
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.
Kajima Corporation
CTBUH Awards & Distinctions
Innovation Award 2014 Winner
2014 CTBUH Awards
Videos
06 November 2014 | Tokyo
Thursday, 6th November 2014 Chicago, USA. Helmut Jahn, CEO, JAHN, Tomohiko Yamanashi, Design Principal, Nikken Sekkei, Dakki Hui, Senior Property & Facility Manager, Kai Shing...
Research
25 April 2019
What Makes for Tall Building Innovation?
Daniel Safarik, CTBUH
In this paper, the Council on Tall Buildings and Urban Habitat seeks to define “innovation” in terms of the potentially transformative technologies and practices for...
About NBF Osaki Building
This building houses Sony’s R&D department, taking the form of a thin vertical plate to ensure good views, while minimizing the heat island effect by positioning its narrow sides against prevailing winds. The building was conceived as a massive cooling device. Owing to the narrowness of the building, the offices have flexible, open plans without columns. All the building’s mechanisms are integrated into the facades, which were designed in response to the environment.
The eastern façade is covered with specialized ceramic louvers that guide rainwater through the system to act as enormous radiator for cooling the environment. Thus, instead of contributing to the heat island effect, the building operates as an urban “cool spot.” This is the first building to install Bioskin, a simple system that circulates rain water by using electricity generated by solar power through unglazed terracotta pipes arranged along the façade vaporizes, cooling down the building itself as well as the surrounding area.
CTBUH Awards & Distinctions
Innovation Award 2014 Winner
2014 CTBUH Awards
Videos
06 November 2014 | Tokyo
Thursday, 6th November 2014 Chicago, USA. Helmut Jahn, CEO, JAHN, Tomohiko Yamanashi, Design Principal, Nikken Sekkei, Dakki Hui, Senior Property & Facility Manager, Kai Shing...
06 November 2014 | Tokyo
CTBUH 13th Annual Awards Dinner
The 13th Annual Awards Ceremony & Dinner was held in Mies van der Rohe's iconic Crown Hall, on the Illinois Institute of Technology campus, Chicago....
06 November 2014 | Tokyo
Thursday 6th November 2014. Chicago, IL. Tomohiko Yamanashi, Nikken Sekkei, is interviewed by Chris Bentley regarding the Tall Building Innovation Award winner, BioSkin, during the...
06 November 2014 | Tokyo
Tall Building Innovation Award: An Evapo-transpiration Innovation for Cities of the Future: BioSkin
BioSkin, a system of water-filled ceramic pipes that cools the exterior surface of buildings and their surrounding micro-climates, has won the 2014 Tall Building Innovation...
Research
25 April 2019
What Makes for Tall Building Innovation?
In this paper, the Council on Tall Buildings and Urban Habitat seeks to define “innovation” in terms of the potentially transformative technologies and practices for...
20 May 2015
Innovative Façade Systems Of Japan
Japanese architecture has traditionally provided for tight integration between the façades of buildings and their overall form, as well as their interiors. Through a combination...
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