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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).
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."
Height is measured from the level of the lowest, significant, open-air, pedestrian entrance to the highest occupied floor within the building.
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).
The number of floors below ground should include all major floors located below the ground floor level.
Nanning Logan Century 1
Na Lotus Hotel Nanning, Logan Century Center 1
Building
Completed
2018
hotel / office
composite
381.3 m / 1,251 ft
82
4
282
32
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Proposed
Construction Start
Completed
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).
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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.
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.
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.
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).
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.
Material Supplier refers to organizations which supplied significant systems/materials for a building project (e.g. elevator suppliers, facade suppliers, etc).
CTBUH Releases Year in Review: Tall Trends of 2018
12 December 2018 - CTBUH News
Top Company Rankings: The World’s 100 Tallest Buildings
13 October 2016 - CTBUH Research
12 December 2018
Year in Review: Tall Trends of 2018
CTBUH Research
The astronomical growth in tall building construction observed over the past decade continued in 2018, though the total number of completed buildings of 200 meters’...
Nanning Logan Century 1 is a highly organized mix-use development that manages to incorporate a wide variety of programs without overcomplicating the building’s structure. The tower’s shape recalls that of a blossoming flower. The rectangular building appears to be divided into four parts – each representing a flower petal beginning to bloom. At the top of the structure, a helipad joins the petals together. Along the height of the building, layers of secondary petals mimic the motif at the zenith of the structure.
The variability of the building’s programs (including office space, an observation deck, and a hotel) required the project team to carefully scrutinize all design elements to ensure that they function as a complete whole. This was a particularly important consideration when designing the central core of the tower in order to accommodate all elevator requirements for passengers and goods, fire egress, and structural support. The ultimate solution was to create a series of separated vertical transportation systems. There are separate shuttle lifts for the public to reach the observation deck and hotel guests to go to the sky lobby; three lift zones for office users; and an independent entrance for hotel staff. Taking advantage of varying levels at the ground floor, lobbies are clearly segregated for the different groups of users.
The shell of the building functions as a unifying element for the disparate functions within. The façade system utilizes a curtain wall with aluminum vertical fins. These fins are not only decorative, but also serve to reduce solar heat gain. To differentiate the exterior visually, glass is tinted different colors along each section of the tower, ranging from white to grayish-blue.
12 December 2018
The astronomical growth in tall building construction observed over the past decade continued in 2018, though the total number of completed buildings of 200 meters’ or greater height leveled off at 143, after hitting an all-time record of 147 in 2017.
13 October 2016
The Council is pleased to announce the Top Company Rankings for numerous disciplines as derived from the list of projects appearing in 100 of the World’s Tallest Buildings.
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