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

2 June 2025 | Tall Buildings in Numbers

Vertical Urbanism Index Case Study: Amsterdam & Rotterdam

Amsterdam is a global leader in sustainable urbanism, known for its human-scale planning, cycling infrastructure, and adaptive reuse of historic structures. While traditionally low-rise, the city is now exploring vertical expansion in select nodes to meet growing housing needs while preserving livability. Rotterdam is one of the Netherlands’ mos...

All Studies

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...

31 December 2013 | CTBUH Journal, 2014 Issue I

Year in Review: Tall Trends of 2013

By all appearances, the small increase in the total number of tall-building completions from 2012 into 2013 is indicative of a return to the prevalent trend of increasing completio...

14 November 2013 | CTBUH Journal, 2013 Issue IV

The Middle East: 20 Years of Building Skyscrapers

Twenty years ago, the Middle East contained only one skyscraper over 150 meters in height. It is now estimated that by the end of 2015 the region will have 289 buildings in this ca...