33 Alfred Street

Sydney
Height
1
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."

115 m / 377 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).

26
Below Ground

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

2
1 33 Alfred Street Outline
Height 115.0 m / 377 ft
Floors 26
Official Name
The current legal building name.

33 Alfred Street

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

AMP Building, Australian Mutual Provident Society Head Office Building, Circular Quay

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, 1962

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

Australia

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

Sydney

Postal Code

2000

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.

composite

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."

115.0 m / 377 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).

26

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

2

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

83

# 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).

13

Top Elevator Speed
Top Elevator Speed refers to the top speed capable of being achieved by an elevator within a particular building, measured in meters per second.

5.08 m/s

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.

49,839 m² / 536,463 ft²

Construction Schedule
1956

Proposed

1959

Construction Start

1962

Completed

2005

Recladding

2020

Retrofit Start

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.

Retrofit Companies Involved

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.

Owner
Current
Australian Mutual Provident Society (AMP)
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.

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.

Rankine & Hill Consulting Engineers
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.

John R. Wallis & Associates; Slocum & Fuller
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.

Concrete Constructions Pty Ltd

Retrofit Companies Involved

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.

CTBUH Initiatives

AMP Capital Confirmed as Diamond Sponsor

18 May 2017 - Conference Activity

About 33 Alfred Street

Often regarded as Australia’s first skyscraper, 33 Alfred Street was the first building to officially break the 1912 Sydney Height of Buildings Limit and became Australia’s tallest building upon completion in 1962. The concept design for AMP’s new headquarters began six years earlier as AMP started negotiations with the Sydney City Council and in 1957, submitted an application for permission to exceed the height limit of 150 feet to the New South Wales Chief Secretary, initiating 12 months of investigations by the state government and the Sydney City Council. After a revised application was submitted in 1959 for a tower set back on an urban plaza with the building footprint covering only 55 percent of the total site, permission was granted for construction to begin.

The prominent location of the building on Circular Quay made the approval process highly controversial over not only the height, but also the unconventional modern design of the tower featuring a curved façade. The building site also required the assembly of multiple properties, including a large five story wool store which had stood for 107 years before demolition commenced. After completion, 33 Alfred Street quickly became a notable landmark for the city’s waterfront gateway and offered the public an observation level commanding unobstructed views looking over the largely low-rise cityscape.