Salford when completed. The second phase of the X1 development will see five towers constructed, including three over . The tallest tower in this development will be Tower 1 which at is due to become the sixth-tallest building in Salford when completed. If all future plans come to fruition, then Salford Quays will contain one skyscraper over and five further high-rises over 100 metres. The Greengate area of Salford is the second major development area for the city. Its location close to Central Manchester and relative underdevelopment over the preceding decades means that a number of significant new proposals have come forward. In 2018, the Anaconda Cut became the tallest building in the city and the first building in Salford to reach a height of over 100 metres. If all future plans come to fruition, then Greengate will feature two skyscrapers over 150 metres and a further six high rises over 100 metres. The biggest development proposal is the Waterloo Place which when completed in 2024, at will become the tallest building in Salford, third-tallest in Greater Manchester and fourth-tallest in the United Kingdom outside London after the Deansgate Square South Tower and the Trinity Tower X, both in the adjacent Castlefield area of Manchester and the 100 Broad Street Tower in Birmingham. Waterloo Place lies in close proximity to Anaconda Cut and will be joined by the three Greengate Park North towers, the tallest of which will reach . With the proposed Gorton Street Tower and the under construction 112 metre Affinity Living Riverview and the Irwell Towers, Greengate will soon have a coherent cluster of towers over 100 metres alongside a number of smaller towers. If all future proposals come to fruition, Salford could contain 90 buildings over 50 metres tall as well as 13 high rises above 100 metres and three skyscrapers over 150 metres. When considered with Manchester city centre, which it borders, the area will contain 49 high rises over 100 metres, the highest in the United Kingdom outside London. If considered separately from Manchester, then at (13) Salford will contain the fourth highest number of high-rises of any city in the United Kingdom after Greater London (over 250), Manchester (44) and Birmingham (30). Tallest buildings and structures This list ranks externally complete buildings and free-standing structures in Salford, Greater Manchester that stand at least , based on standard height measurement. This includes spires and