Dubai tower breaks world record

Dubai's Princess Tower, the world's tallest residential tower at a final height of 414 metres.

A developer in Dubai said one of its residential buildings has been officially recognised by Guinness World Records as the tallest residential tower in the world.

The Princess Tower, in Dubai Marina, measures 414m from base to tip, according to the developer Tameer.

The entry on the Guinness World Records site reads: "Completed in 2012, Princess Tower in Dubai, is 413.4 m (1,356 ft) high and has 101 storeys above ground, dedicated to residential use.

"The highest occupied floor stands at 356.9 m (1,171 ft). The architectural height is measured from the level of the lowest, significant, open-air, pedestrian entrance to the architectural top of the building, including spires, but not including antennae, signage, flag poles or other functional-technical equipment as defined by the Council on Tall Buildings and Urban Habitat (CTBUH).

"Building function: A single-function tall building is defined as one where 85 per cent or more of its usable floor area is dedicated to a single usage. Thus a building with 90 per cent office floor area would be said to be an "office" building, irrespective of other minor functions it may also contain."