[17] On 8 June 2016, it was reported by the People's Daily that the project had been dropped due to protests over environmental damage to the Daze Lake wetland.
The People's Daily said, "Central China's Hunan province finally announced a halt on its ambitious plan to build the world's tallest tower within one part of its rare wetland area.
The Daze Lake wetland is the location where the world's next tallest tower was originally scheduled to be built.
[11][12] BSB's plan is to assemble 95% of the building in its factory before any excavation takes place at the construction site.
The building would have 6 inches (15 cm) of insulated walls and quadruple glazing, contributing greatly to energy efficiency.
[23] Although structural details are not available, outside architects have expressed doubts that a modular design would have the stiffness on lower floors to withstand the wind loads imposed by such a height, without unacceptable amounts of sway,[24] or that the building could be built without high-strength concrete, whose curing time would preclude such a rapid construction rate.
[24] Most of the construction and production of materials will take place on site so as to benefit the local economy of Changsha.
[28][29] The final architectural renderings had been completed and the project was to be approved by the central government in early December 2012.
Construction was scheduled to begin at some point in 2013 and plans still called for the 90 day timetable to complete.
[26][30][31] On 14 May 2013, TreeHugger reported that the project had received governmental approval and was set to break ground in June 2013.
[13] On 20 July 2013, pictures of the groundbreaking ceremony, at which Zhang Yue arrived by helicopter, along with several dignitaries, started to circulate on Chinese websites and Skyscy.
[33] These reports suggest that China State Construction Engineering is the main contractor, that the building was expected to be complete by April, and that it would open in May or June 2014.
[35] On 14 August 2013, China Daily USA reported that the actual onsite assembly won't start until April 2014, according to Wang Shuguang, general manager of Broad Group's US operation.
The company has recently confirmed that it is still actively seeking to develop the tower, pending government approvals.
In February 2015, the developer attracted attention when Mini Sky City, also located in Changsha, topped out, the 204 metre tower was built in two bursts, the first twenty floors went up in a week but was then halted by red tape, the second phase of thirty-seven storeys was completed in twelve working days.
A building with such a height and shape will need to deal with large horizontal forces, but a wind strategy seems to be absent from the Broad Group's blueprint on the tower.
[citation needed] Because of a lack of stiffness, winds would generate a huge draft around the building and would cause it to sway, making it potentially unstable.
Sang Dae Kim, chairman of the Council on Tall Buildings and Urban Habitat, has claimed that towers up to 2 kilometers are possible with modern technology, he has said that the floor to elevator ratio at that height would be impractical.