Council on Tall Buildings and Urban Habitat

Committees & Working Groups

A number of Working Groups report on specific study focused aspects of the planning, design, construction and management of tall buildings and urban habitat across design, technical and social fields. The primary purpose of a working group is to produce a relevant technical guide or other tangible output. These groups allow an international collaboration between building professionals.


Height and Data Committee

The CTBUH is the arbiter of the criteria upon which tall building height is measured, and thus the title of “The World’s Tallest Building” determined. The Height Committee, composed of prominent international professionals meets regularly to accurately maintain these criteria.

Urban Habitat / Urban Design Committee

The Urban Habitat committee focuses on the role of tall buildings within a city and how those tall buildings affect the quality of life for those that live or work within or near them.

Expert Peer Review Committee

The CTBUH maintains a highly qualified scientific expert review panel. This panel evaluates conference papers, CTBUH Journal papers, seed funding submissions, and other relevant research-oriented submissions on an ad-hoc basis.

Expert Chinese Translation Review Committee

The CTBUH maintains a highly qualified translation review committee. This committee helps translates and reviews translations of conference papers, CTBUH Journal papers, seed funding submissions, and other relevant research-oriented submissions on an ad-hoc basis.

Skyscraper Center Editorial Board

The board consists of members from around the world that have a keen interest in skyscrapers and provide information and updates on projects to help maintain the most accurate database of tall buildings.

Young Professionals Committees

The Young Professionals Committee was created to be an incubator for the next generation of CTBUH leaders. It connects young members with established leaders within CTBUH to provide great mentorship and collaboration opportunities.....

Working Groups

Building Information Modeling Working Group

The purpose of this working group is to enable a forum about the challenges and opportunities central to Building Information Modeling in the design and construction of tall buildings.

Demolition Working Group

The final goal of the Working Group is to write up a Demolition Technical Guide, to overcome the fragmentary knowledge in this sector. In the guide will be present the entire spectrum of possibilities for the demolition of tall buildings, highlighting the advantages and disadvantages of the different techniques.

Facade Access

Façade Access Working Group

The goal of the Façade Access Working Group is to increase awareness about issues of accessing and maintaining tall buildings, and how to better integrate these systems with architectural design.

Performance Based Seismic Design

It has been established that Performance Based Seismic Design is most appropriate for tall building design, particularly in regions of high seismicity.

Security Working Group

Asset Protection/security has become ever more relevant given the historical incidents of terrorism and increase in workplace violence acts that have been experienced globally. These acts have the potential to create a paradigm shift in how are buildings are perceived, experienced and accessed.

Sustainable Design


Sustainability Working Group

This working group sets out to define and investigate the many aspects of the oft-used word ‘sustainability’, in the context of tall buildings. In doing this, it sets out to dispel the myths associated with sustainability and determine exactly what the issues are and how they can be addressed....

Tall Timber Working Group

The main objective of the CTBUH Tall Timber Working Group is the development of research activities aimed at increasing the use of timber in tall buildings.

Completed Working Groups

Fire & Safety

Fire & Safety Working Group

This working group is concerned with leading the industry, globally, towards a consensus on designing safe buildings, taking account of modern forms of risk, when and where appropriate.

Progressive Collapse

Outriggers Working Group

Outrigger systems have been widely used in super tall buildings constructed since the 1980’s, eclipsing the tubular frame systems previously favored.  However, the outrigger system is not listed as a seismic lateral load resisting system in any code, and design guidelines are not available...

CTBUH Research, Academic and Postgraduate Working Group

Research, Academic and Postgraduate Working Group

This working group aims to bring together all those who are undertaking formal, funded research in multi-disciplinary aspects of tall buildings internationally. The group aims to help coordinate that research, maximize output and analyse research gaps and possible future funding opportunities...

Seismic Design    

Seismic Performance-Based Design Working Group

There is a resurgence in the construction of high rise buildings around the world, including in many seismically active regions. This working group released a guide in 2008 that sets out best practice for the seismic design of high-rise buildings for use in any seismic region of the world...

Finance & Economics

Wind Engineering Working Group

The main structure of a tall building and its façade must be designed to safely withstand the extreme winds that the building will be subjected to during its expected life.  An important part of achieving this is determining what the wind loads will be for specific mean recurrence intervals and what the uncertainties are in these loads.