MAKE boss Ken Shuttleworth has expressed surprise at the striking similarity between his proposed Vortex Tower in the City of London and the distinctive Port of Kobe Tower in Japan.
Developed in partnership with Arup, Shuttleworth's 70-storey pink and blue structure will boast a roof-top garden and public restaurant offering panoramic views across London, as well as residential and commercial space.
The 300m Vortex is so-called because of its hyperboloid profile resembling extreme weather storms. The structure is twisted into a spiral shape with a tapering centre and wide base and top - the rationale being that the base and top of the building are its key commercial features.
The 108m Kobe Tower, built in 1987 to commemorate the city's 120-year anniversary, also offers a restaurant and public viewing galleries across Osaka Bay and the Rokko Mountains.
But the former Foster and Partners director has refuted suggestions that MAKE drew inspiration from the Kobe Tower.
'It's certainly a similar shape, isn't it? I haven't seen it before and it was not a source of inspiration for the Vortex, ' said Shuttleworth.
'It's interesting that the Kobe Tower designers did not use the full envelope of the building.
Instead accommodation has been limited to a central cone. Also the Kobe building is red all over, while the Vortex is blue at base and pink on top, ' he added.