text: At 322.5 m (1,058 ft) and with a roof height of 245 m (804 ft), Q1 qualifies as the world's third tallest all-residential building when measured to the top of its structural point (spire), but is ranked lower behind buildings including The Marina Torch at 348 metres in Dubai and Melbourne's Eureka Tower (roof height of 297.28 metres (975.3 ft)) when measured to its roof height and highest inhabitable floor.