The Helix

Arlington

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 the CTBUH.

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    Metrics
Height 107.4 m / 352 ft
Floors 15
Official Name
The current legal building name.

The Helix

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

Amazon PenPlace Site, The Helix, Amazon HQ2 Phase 2, The Helix

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

Amazon HQ2

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

Proposed

Expected Completion

2027

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.

Arlington

Address

550 Army Navy Drive

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

Energy Label

LEED Platinum targeted

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."

107.4 m / 352 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).
107.4 m / 352 ft
Occupied
Height is measured from the level of the lowest, significant, open-air, pedestrian entrance to the highest occupied floor within the building.
88.6 m / 291 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).

15

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

4

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.

34,374 m² / 369,999 ft²

Construction Schedule

2021

Proposed

2027

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.
NBBJ
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.
Magnusson Klemencic Associates
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.
BuroHappold Engineering
Owner
Amazon
Developer
JBG Smith Properties; Seneca Group
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.
NBBJ
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.
Magnusson Klemencic Associates
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.
BuroHappold Engineering
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.
The Whiting-Turner Contracting Company
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).
Civil
VIKA, Inc.
Landscape
SCAPE Landscape Architecture DPC

Global News

07 March 2023

Construction Work Paused on Tech Giant's Arlington HQ

Construction has been paused on the Amazon HQ2 campus in Arlington, Virginia the company confirmed to News4 on Friday, 3 March, 2023. Not all phases...

 

Global News

07 March 2023

Construction Work Paused on Tech Giant's Arlington HQ

Construction has been paused on the Amazon HQ2 campus in Arlington, Virginia the company confirmed to News4 on Friday, 3 March, 2023. Not all phases...

28 April 2022

Tech Giant HQ Gets Permission to Build in Arlington

The spiral-shaped glass tower designed by architecture studio NBBJ for Amazon's second headquarters has been given permission to be built in Arlington, Virginia.  Called The...

18 November 2021

Revised Design for Arlington's Proposed Corporate Campus

Amazon originally revealed plans for the Second Phase of the PenPlace complex in February 2021. Now after receiving public feedback, the masterplan for the project...

09 February 2021

Designs Revealed for Tech Giant Headquarters in Arlington

Two years after tech giant Amazon ended its search for a second headquarters site and settled on Arlington, Virginia (after plans for a Queens offshoot...