A Chinese construction company has built the world's tallest prefab tower in under three weeks of work time.

China is taking the lead in the further development of cutting-edge construction techniques, as part of efforts to expedite the creation of a vast swathe of fresh building stock to deal with the country’s mass urbanisation drive. Hunan-based Broad Sustainable Building (BSB) serves an outstanding example of this trend, with vice-president Xiao…