Nextower

Frankfurt am Main
Height 136.0 m / 446 ft
Floors 35
Official Name
The current legal building name.

Nextower

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

Tower am Thurn & Taxis Palais, PalaisQuartier Office Tower

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

Palais Quartier

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, 2009

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

Germany

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

Frankfurt am Main

Postal Code

60313

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.

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.

concrete

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."

136.0 m / 446 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).
136.0 m / 446 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).

35

# of Elevators
Number of Elevators refers to the total number of elevator cars (not shafts) contained within a particular building (including public, private and freight elevators).

9

Construction Schedule
2004

Construction Start

2009

Completed

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.

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).

Vertical Transportation
Material Supplier

Material Supplier refers to organizations which supplied significant systems/materials for a building project (e.g. elevator suppliers, facade suppliers, etc).

Cladding
Developer
MAB; Meyer Bergmann
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.

KSP Engel und Zimmerman Architekten
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.

Engineer of Record

The Engineer of Record takes the balance of the engineering effort not executed by the “Design Engineer,” typically responsible for construction documents, conforming to local codes, etc.

KHP Konig und Heunisch Planungsgesellschaft
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.

Peter Berchtold - Engineering Consultants
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.

BAM Deutschland AG
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).

Vertical Transportation
Material Supplier

Material Supplier refers to organizations which supplied significant systems/materials for a building project (e.g. elevator suppliers, facade suppliers, etc).

Cladding
Anders Metallbau GmbH; HALFEN

CTBUH Awards & Distinctions

Best Tall Building Europe 2010 Award of Excellence

2010 CTBUH Awards

CTBUH Initiatives

Nextower Chosen as Featured Building

15 October 2012 - Featured Building

About Nextower

Positioned outside the limits of the cluster of high-rises in the neighboring banking district, the PalaisQuartier forms the architectural highpoint of a new district in downtown Frankfurt—with shapes that catch the eye even from a great distance, its expressive shape creates an exciting counterpart. Together with the Thurn und Taxis Palais Townhouse (recently rebuilt to preserve its original façade), and the “MyZeil” shopping mall, the PalaisQuartier rounds out a new district which has a decidedly urban flair.

The urban planning concept from the outset envisaged the construction of an urban quarter on the former Post Office site that linked various facilities such as accommodation, hotels, offices, restaurants, event rooms and retail outlets with each other. The new combination of reconstructed space, inner-city shopping mall, office high-rise tower and hotel creates a lively urban place in the center of Frankfurt. The Thurn und Taxis Plaza forms the publicly accessible center of the new quarter, enriching the inner city.

Two materials, namely aluminum and glass, define the appearance of the face of the building, which is designed as segmented curtain façades. The eye-catching characteristic of the tower is, when seen from the side, the diamond-shaped fully glazed surfaces. They are integrated into the façade like crystalline bodies. In order to emphasize the crystalline character of the glass, diamonds are implemented as dual façades using highly transparent, untreated panes of glass as the outer layer, with solar protection integrated into the intervening space in the façade, and insulation-grade glass windows constituting the inner, thermal skin. If desired, the windows in the office high-rise can be opened to provide natural ventilation. The transparency of the high-rise façades with their non-reflecting windows makes it possible to look in and out, enlivening the high-rise and opening it up visually to its surroundings.

The tower’s slightly tilted façades are structured by the three striking fold lines and their height, which is defined by the design and derived from the overall shape. Inspired by Constantin Brancusi’s gleaming column-like artworks, the sculptural qualities of the office tower with its neighboring hotel tower serve as unmistakable points of orientation in the city’s fabric.

The tapering/expansion that results from the tilting creates office footprints with different depths in line with the building’s underlying geometry. The usable depth of the office areas, which are 3.05 m (10ft) high from floor-to-ceiling, is about 5.9m (19ft) in the tapered sections and up to 9.6m (31.5ft) in the zones that jut out furthest. This variance encourages a great range of different office layouts, from executive offices via combined offices with a central area for communicative shared usage, through to open plan offices.

The energy concept envisages that about 50% of the heating/cooling energy requirement is covered by sustainable systems. About 20% of the figure is obtained geothermally through a combined heat-pump and cooling system. The highly efficient central heat recovery plant relies on radiant heat from the shopping mall and the underground car park. It provides about 30% of the total heating energy requirement. The rented areas are cooled/heated by means of a heating control system for the respective building section integrated into the concrete ceilings. For this reason, there is no need for suspended ceilings in the sections containing office workstations. Ambient temperature, lighting and solar protection blinds are all centrally controlled by sensors, whereby they can be individually set at any time.

CTBUH Awards & Distinctions

Best Tall Building Europe 2010 Award of Excellence

2010 CTBUH Awards