Editing Commerzbank Tower (section)

== Features ==
[[File:Frankfurt.Commerbanktower.innenhof.wmt.jpg|thumb|left|267px|Garden on the 19th floor of Commerzbank Tower]]

When the building was planned in the early 1990s, Frankfurt's Green Party, who governed the city together with the [[Social Democratic Party of Germany|Social Democratic Party]], encouraged the Commerzbank to design a 'green' skyscraper. The result was the world's first so-called ecological skyscraper:{{sfn|Sweet|Forbes|Ahearn|Scott|2006|p=54}} besides the use of 'sky-gardens', environmentally friendly technologies were employed to reduce energy required for heating and cooling.{{sfn|Sweet|Forbes|Ahearn|Scott|2006|pp=54–55}}

===Sky gardens===
Commerzbank Tower is shaped as a {{convert|60|m|ft|0|adj=on}} wide rounded equilateral triangle with a central, triangular atrium. At nine different levels, the atrium opens up to one of the three sides, forming large sky gardens. These open areas allow more natural light in the building, reducing the need for artificial lighting.{{sfn|Sweet|Forbes|Ahearn|Scott|2006|pp=54–55}} At the same time it ensures offices in the building's two other sides have a view of either the city or the garden.

In order to eliminate the need of supporting columns in the sky gardens, the building was constructed in steel rather than the conventional (and cheaper) concrete. It was the first skyscraper in Germany where steel was used as the main construction material.

===Height===
It is a 56-story building, with the highest occupied floor at {{convert|190|m|abbr=on}}. The roof is at a height of {{convert|259|m|abbr=on}}. The [[antenna tower|antenna]] spire on top gives the tower a total height of {{convert|300.1|m|ft|0|abbr=on}}.<ref name=skyscrapercenter/>

Since the departure of the United Kingdom from the European Union, the tower had briefly reclaimed its position as the tallest building in the European Union only to lose the title again in 2021 when Poland's [[Varso|Varso Tower]] topped out. The Commerzbank Tower is only two metres taller than the [[Messeturm]], which is also located in Frankfurt and was the tallest building in Europe before the construction of the Commerzbank Tower.