[['name', 'street address', 'years as tallest', 'of years as tallest', 'height m / ft', 'floors'], ['notre dame basilica', '110 notre - dame street west', '1829 - 1928', '99 years', '69 / 226', '7'], ['royal bank building', '360 saint jacques street west', '1928 - 1931', '3 years', '121 / 397', '22'], ['sun life building', '1155 metcalfe street', '1931 - 1962', '31 years', '122 / 400', '26'], ['tour cibc', '1155 rené lévesque boulevard west', '1962', '<1 year', '187 / 614', '45'], ['place ville marie', '1 place ville - marie', '1962 - 1964', '2 years', '188 / 617', '47'], ['tour de la bourse', '800 victoria square', '1964 - 1992', '28 years', '194 / 637', '47'], ['1000 de la gauchetière', '1000 de la gauchetière street west', '1992 - present', '21 years (current)', '205 / 673', '51']]
regardless of both Building having 47 Floor , the Tour De La Bourse took the title of the Tallest Building from the Place Ville Marie in 1964 by a mere 6 / 20 M / Ft difference
regardless of both [ENT] having [ENT] [ENT] , the [ENT] took the title of the [ENT] [ENT] from the [ENT] in [ENT] by a mere 6 [ENT] 20 [ENT] difference