Groupwork of Amin Taha and Webb Yates designed the skyscraper to investigate how the cost and sustainability impact of a tall building with a stone structure compared to one with a concrete or steel structure.

The research found that large commercial buildings could be built more cheaply and with less of an environmental impact using stone rather than concrete or steel.

The stone skyscraper research project forms part of an exhibition called New Stone Age at the Building Centre in London, which was curated by Steve Webb, co-founder of Webb Yates, Taha and Alex Cotterill from Groupwork and stonemason Pierre Bidaud. Both projects aim to show the potential stone has as a modern building material.

"We've only just rediscovered what architects have known for 7,000 years," said Taha. "Stone is versatile, has strength, longevity, is plentiful, cheap and, with zero embodied carbon, well placed for a renaissance."

Also It has larger floor plates and spans, built in either cross-laminated timber or pretensioned stone and at 30 storeys various parts of the structure require fire integrity for 90-120 minutes instead of 60 minutes.