Fresh plans have been submitted to trim four floors from the 22 Bishopsgate tower under construction in London because of fears cranes will interfere with flights into city airport.
Planned new flat-top 22 Bishopsgate tower, next to taller proposed 1 Undershaft, after building lowered by 22m
The AXA-led development consortium has chopped 22m from the originally consented scheme, cutting off the stepped apex to create a flat-top skyscraper.
Planning documents lodged with the City of London reveal that there was concern about maximum crane heights impacting on aviation safety during construction.
Under the consented scheme cranes would have encroached into the 1,000 feet (305m) safeguarding limit for London City Airport.
The new scheme reduces the core height by 22m overcoming this issue during construction, but dropping the overall building height to 272m.
Existing consented tower plan with a stepped building profile would see luffing cranes rise above 1000ft city airport restriction area
If approved the tower being built by Multiplex would now rise to 59 storeys rather than 63, although the overall area of the building will remain the same as the original plans.
Amended plans were submitted late last month as steelwork contractor Severfield confirmed it had secured the massive project, replacing earlier preferred contender William Hare.
The new designs will not impact the project’s delivery timetable, which will see the tower completed in 2019. The workforce will peak at around 1,400 in 2018.
22 Bishopsgate construction programme
from Construction Enquirer http://www.constructionenquirer.com/2016/12/06/22-bishopsgate-lowered-over-crane-clash-fear-with-planes/
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