343 Madison Avenue

New York City

Note: As this project is proposed, 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 CVU.

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    Metrics
Height 284.2 m / 932 ft
Floors 47
Official Name
The current legal building name.

343 Madison Avenue

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

341-347 Madison Avenue

Type
CVU 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 CVU '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

Proposed

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

United States

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

New York City

Address

343 Madison Avenue

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 CVU "Tallest Building" lists in descending order, e.g., "hotel/office" indicates hotel function above office function.

Office

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 Vertical Urbanism (CVU) rankings of the "World's Tallest Buildings."

284.2 m / 932 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).
284.2 m / 932 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: CVU 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).

47

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

2

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.

91,231 m² / 982,002 ft²

Developer
Boston Properties, 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.
Kohn Pedersen Fox Associates
Developer
Boston Properties, 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.
Kohn Pedersen Fox Associates

Global News

09 August 2022

New Building Height is Filed for New York City Tower

On 5 August, 2022, developer Boston Properties filed new plans for the building at 343 Madison Avenue.  The building's new height is listed at 237.7...

 

Global News

09 August 2022

New Building Height is Filed for New York City Tower

On 5 August, 2022, developer Boston Properties filed new plans for the building at 343 Madison Avenue.  The building's new height is listed at 237.7...

07 May 2021

New Manhattan Supertall’s Exterior Prioritizes Floor-to-Ceiling Views

The majority of 343 Madison Avenue, a proposed 320-meter-tall (1,050-foot-tall) office supertall in Midtown East, will be clad in floor-to-ceiling glass with strips of indented...

30 July 2020

Plans For New York City's Madison Avenue Reveal New 55-Story Office Tower

Plans for 343 Madison Avenue in Midtown East unveil the substantial size and scope of the supertall to take the place of the former Metropolitan...

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