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The Dubai One Tower was a proposed megatall residential building in Dubai, United Arab Emirates.[2] At 711 metres (2,333 ft) it would have been the tallest residential building in the world and the 2nd tallest building in the world when completed.[3] If built as planned, it would have featured 885 residential apartments and a five star hotel with 350 rooms.[4] with a passed expected date of 2020 the building was part of 4.3 billion complex called Maydan one.[5]