The Hansar
Bangkok
Height

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."

1
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).

173 m / 567 ft
2
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."

173 m / 567 ft
3
Occupied:

Height is measured from the level of the lowest, significant, open-air, pedestrian entrance to the highest occupied floor within the building.

149.3 m / 490 ft
1 2 3 The Hansar Outline
Floors

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).

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).

43
Height 172.95 m / 567 ft
Floors 43
Official Name

The current legal building name.

The Hansar
Other Names

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

Hansar Rajdamri, Ativa Hotel Bangkok
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, 2011
Country

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

City

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

Address
Postal Code
10330
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.

hotel / 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
Official Website
Height

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."

Architectural
172.95 m / 567 ft
To Tip
172.95 m / 567 ft
Occupied
149.25 m / 490 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).

43
# of Apartments

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

196
# of Hotel Rooms

Number of Hotel Rooms refers to the total number of hotel rooms contained within a particular building.

80
# of Parking Spaces

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

298
# 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).

11
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.

46,167 m² / 496,937 ft²
Rankings
#
67
Tallest in Thailand
#
57
Tallest in Bangkok
#
422
Tallest Mixed-use Building in Asia
#
8
Tallest Mixed-use Building in Thailand
#
8
Tallest Mixed-use Building in Bangkok
#
57
Tallest Concrete Building in Thailand
#
49
Tallest Concrete Building in Bangkok
Construction Schedule
2005

Proposed

2006

Construction Start

2011

Completed

Owner
Somhansar company Limited
Developer
Ativa Hospitality Corp., Ltd.
Architect
Structural Engineer
MEP Engineer
EMS Consultants Company
Contractor
Ritta Co. Ltd.

Elevator

CTBUH Awards & Distinctions

Best Tall Building Asia & Australasia 2011 Award of Excellence

2011 CTBUH Awards

CTBUH Initiatives

The Hansar Chosen as Featured Building


1 February 2012 - Featured Building

Videos

18 September 2014 | Bangkok

Mun Summ Wong of WOHA Architects is interviewed by Chris Bentley during the 2014 CTBUH Shanghai Conference at the Jin Mao Tower. Mun Summ talks...

Research

16 January 2012

Mun Summ Wong & Richard Hassell, WOHA

High-rise, high-density living has been embraced as a positive housing solution for many millions of people living in Asia’s growing urban metropolises. The Hansar, a...

About The Hansar

The Hansar is located in the heart of Bangkok, surrounded by luxury hotels, shopping areas, and a large city park. The site is small and irregular, with a building plot ratio of 1:10. The design captures the value of the site by maximizing the building area. In Bangkok, living up high provides less noise, less dust, cooler breezes and privacy with full exposure to views. The small site limited the potential green areas on the ground level so sky gardens were introduced at height and are equal to 30% of the site area. These sky gardens are placed at every fifth floor, and are staggered across both the east and west elevations. Each unit has either a private lift lobby with an entry to the sky garden or a living room with sky garden views.

To negotiate between the desire for views and the need to provide shading, a metal mesh screen was utilized. These sun screens also serve as privacy screens for the units. The expanded mesh, which forms the building’s outer skin, is coated in a metallic bronze color to create a contrast to the usually grey Bangkok sky. The bronze screen, when combined with the sky gardens, gives a unique character to the development. The golden mesh and floating greenery allude to the glimpses of gilded temple and luxuriant gardens that hide amongst the concrete jungle of Bangkok.

Tropical living is all about the interaction between the interior and exterior, but in a dense urban site this is challenging. The design looked at ways of creating this tropical lifestyle in a high-density, high-rise development. Landscaping is incorporated in all the common areas throughout the building. Lower level units have private cantilevered gardens. These gardens create a rhythm of green elements which run vertically throughout the whole development. Sky gardens, sky pavilions and green walls have been created all the way up the building to increase the landscape area and interaction between interior and exterior. At the hotel, cantilevered sky pavilions project from the rooms. These are topped with sky gardens, which can be enjoyed by the nearby rooms. Internal light wells are planted with green walls, and give private garden views to every hotel room. The condominium apartments and hotel rooms are all accessed off naturally ventilated and naturally lit corridors, reducing the energy use of the building substantially.

At the podium the ground level consists of retail below six stories of above-ground parking (due to frequent flooding, underground parking is not a good option in Bangkok). Green creeper screens wrap around the car park podium, on top of which sits the cantilevered swimming pool.

CTBUH Awards & Distinctions

Best Tall Building Asia & Australasia 2011 Award of Excellence

2011 CTBUH Awards

18 September 2014 | Bangkok

Mun Summ Wong of WOHA Architects is interviewed by Chris Bentley during the 2014 CTBUH Shanghai Conference at the Jin Mao Tower. Mun Summ talks...

18 September 2014 | Bangkok

Mun Summ Wong of WOHA Architects is interviewed by Chris Bentley during the 2014 CTBUH Shanghai Conference at the Jin Mao Tower. Mun Summ talks...

16 January 2012

Mun Summ Wong & Richard Hassell, WOHA

High-rise, high-density living has been embraced as a positive housing solution for many millions of people living in Asia’s growing urban metropolises. The Hansar, a...

1 February 2012

The Hansar Chosen as Featured Building

In the tall building world of so many often-ridiculous gestures, The Hansar has a fantastic balance and poise embodying principles of sustainable and tropical living.