101 Collins Street is a 260 m (850 ft) skyscraper located in Collins Street, Melbourne central business district, Victoria, Australia. The 57-storey building designed by Denton Corker Marshall was completed in March 1991. Towards the end of project, with a change of developer, the foyer space was designed by Johnson Burgee.
The tower is currently the 7th tallest building in Australia when measured up to the tallest architectural point which is the 60 m (200 ft)-tall spire.
The tower contains 83,000 m2 (890,000 sq ft) of rentable space. The floor-to-ceiling height is unusually large for a skyscraper at 2.77 m (9 ft 1 in). The 30 m (98 ft) lifts can reach speeds of 7 m/s (23 ft/s). There are 414 underground car park spaces. The building contains double glazed windows with surface coated tempered glass to increase thermal efficiency. The CRA Building was demolished for the construction of this building.
The owners of 101 Collins have had a long term policy of buying up surrounding properties in order to protect their views, especially to the south, with an unintended consequence being that older buildings in Flinders Lane now house hip restaurants and bars.
101 Collins Street lends it name to a Yarra Trams stop that is served by routes 11, 12, 48 and 109.