Data Studies

The Research & Thought Leadership division of the CTBUH performs objective research at all scales and distributes findings in the form of data studies that highlight critical issues facing tall buildings and future cities.

Latest Study

5 July 2023 | Tall Buildings in Numbers

Evolution of the World's Tallest Buildings

As a companion to CTBUH’s The World’s 118 Tallest Buildings, and in recognition of the 2023 completion of Merdeka 118, the world’s second-tallest building, in Kuala Lumpur, this study focuses on the past, present, and future of the world’s tallest buildings. Of the 100 tallest buildings in the world,* 60 have been completed since 2010, and most of...

All Studies

24 August 2015 | CTBUH Journal, 2015 Issue III

World’s Highest Observation Decks

Perhaps no element of a tall building is more closely related to the pure pleasure of standing high in the sky and taking in the view of one’s surroundings than observation decks....

29 April 2015 | CTBUH Journal, 2015 Issue II

Japan: A History of Tall Innovations

Japan is one of the world’s most densely populated nations, at an average of 339 people per square kilometer. It is also one of the world’s most active seismic zones. The combinati...

31 December 2014 | CTBUH Journal, 2015 Issue I

Interactive Study on Year in Review: Tall Trends of 2014

An All-Time Record 97 Buildings of 200 Meters or Higher Completed in 2014 and 2014 showed further shifts towards Asia, and also surprising developments in building functions and st...

6 November 2014 | CTBUH Journal, 2014 Issue IV

Dream Deferred: Unfinished Tall Buildings

Without big dreams, there would be no tall buildings. Conceiving, financing, designing, and constructing a skyscraper is no simple feat, even under the best of conditions. Many pro...

16 September 2014 | CTBUH Journal, 2014 Issue III

Green Walls in High-Rise Buildings

The latest CTBUH technical guide, Green Walls in High-Rise Buildings, provides a thorough investigation of the methods used around the world for implementation of vertical vegetati...

11 June 2014 | CTBUH Journal, 2014 Issue II

Highest Helipads

In this installment of Tall Buildings in Numbers, CTBUH considers how helipads are used on skyscrapers, and which are the highest in the world. The results were somewhat surprising...