1414
Global
Height rank

340 on the Park

Chicago
  • Facts
Height 204.9 m / 672 ft
Floors 64
Official Name
The current legal building name.

340 on the Park

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

Lakeshore East Building 1-N

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

Lakeshore East

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, 2007

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

United States

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

Chicago

Address

340 East Randolph Street

Postal Code

60601

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

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

Energy Label

LEED Silver

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."

204.9 m / 672 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).
204.9 m / 672 ft
Occupied
Height is measured from the level of the lowest, significant, open-air, pedestrian entrance to the highest occupied floor within the building.
192.4 m / 631 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.

6

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

325

# of Parking Spaces
Number of Parking Spaces refers to the total number of car parking spaces contained within a particular building.

430

# 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

Rankings
  • By Location
#
1414
Tallest in the World
#
234
Tallest in North America
#
30
Tallest in Chicago
#
340
Tallest Residential Building in the World
#
40
Tallest Residential Building in North America
#
32
Tallest Residential Building in United States
#
5
Tallest Residential Building in Chicago
#
724
Tallest Concrete Building in the World
#
82
Tallest Concrete Building in North America
#
64
Tallest Concrete Building in United States
#
14
Tallest Concrete Building in Chicago
Construction Schedule
2005

Construction Start

2007

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.
Solomon Cordwell Buenz
Structural Engineer
(not specified)
Magnusson Klemencic Associates
MEP Engineer
(not specified)
Cosentini Associates
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.
Bovis Lend Lease
Owner/Developer
Related Midwest
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.
Solomon Cordwell Buenz
Structural Engineer
(not specified)
Magnusson Klemencic Associates
MEP Engineer
(not specified)
Cosentini Associates
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.
Bovis Lend Lease
Material Supplier

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

Research

28 October 2019

History of Unbonded Post-Tensioned Concrete in Skyscrapers

Neel Khosa, AMSYSCO

Unbonded post-tensioned (PT) concrete has become a widely-accepted construction technique in the United States. The introduction of PT in tall buildings has been relatively recent,...

About 340 on the Park

340 on the Park stands out as a major achievement in energy and environmentally conscious design with its 62-story height and residential use. The aesthetic components of the building sought to maximize the views and to interrelate with the surrounding area. The façades each relate to the view they are facing, ensuring optimal views to the surrounding Grant Park, Lake Michigan and Chicago skyline. The striking prow point sidesteps existing views of nearby structures and creates 360º views around the site for the residents of 340 on the Park. Residents may also enjoy the winter garden located on the 25th floor. This fully accessible amenities level utilizes an entire floor and includes a two-story landscaped interior with an outdoor terrace.

The entire building design features inno-vative approaches to an energy efficient design; however, this was not an easy feat for the project team. Because the building is a residential condominium tower, certain standard approaches to energy conscious design did not turn out to be viable options —solar energy, wind driven turbines, and other resources typically employed in sustainable design.

A collaborative effort was needed in order to develop sustainable systems that were both cutting edge and appropriate to the design of the building. The resulting sustainable features include: Regionally manufactured and supplied core and shell materials containing recycled content, paints, adhesives, sealants and carpets that meet the LEED program requirements; a design and customization manual provided to residents to assist in the selection of interior finishes and materials; more than 75% of all roof surfaces have either a highly reflective white surface or green roof garden; 100% of all irrigation water is supplied by an internal storm water collection system to meet the already stringent ASHRAE 90.1 Energy Code standard; the building has a highly efficient envelope system. With both U and S-C coefficient values below 0.30, 82% of construction waste was recycled instead of being sent to landfills. The result is a building that looks effortless and elegant and stands as a model for the next generation of energy and environmentally conscious buildings.

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