City of London's Pinnacle Tower
 

Hi,

It looks like this might be getting started again in the near future as architects KPF find a way to cut costs but retain the distinctive helter skelter design, more details are in this article from the Independent website from December 2013: http://www.independent.co.uk/news/uk...t-9000548.html

A new agreement is to be completed in march for construction to begin. This tower is already a quarter built so it will be built very quickly after construction begins