how tall does a building have to be until it is classed as a skyscraper...i always said is was 150m+???but i don't really no...
By the way, it's spelled OFFICIALA skyscraper is a very tall, continuously habitable building. Although there is no uniform official definition or a precise cutoff height above which a building may clearly be classified as a skyscraper, a minimum height of 100 meters or approximately 330 feet (the equivalent of 25 to 30 stories) may constitute a safe criterion for such a qualification. However, as per usual practice in most cities the definition is used empirically, depending on the relative impact of the shape of a building to a city's overall skyline. Thus, depending on the average height of the rest of the buildings and/ or structures in a city, even a building of 80 meters height (approximately 262 feet) may be considered a skyscraper provided that it clearly stands out above its surrounding built environment and significantly changes the overall skyline of this particular city.