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List of tallest buildings in Ontario facts for kids

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This list of tallest buildings in Ontario ranks skyscrapers and high rise buildings in the province of Ontario by height. Buildings in nine cities are included in this list; Hamilton, Kitchener, London, Markham, Mississauga, Niagara Falls, Ottawa, Toronto, and Windsor, each having buildings taller than 100 metres.

The tallest building in the province of Ontario is First Canadian Place 298 metres (978 feet). Completed in 1976, it is also the tallest building in Canada and the 68th tallest building in the world. At the time of its completion, it was the tallest building in the world outside of Chicago and New York City.

Due to height restrictions, tall skyscrapers are restricted in many parts of Ottawa, including the downtown core. Initially the height restrictions were put in place as to prevent any building from exceeding the height of the Peace Tower of Parliament Hill. The tallest building in that city now rises to 143 m (469 ft).

In recent years, a development boom has caused many cities, that historically haven’t had tall buildings or dense urban cores, to densify and construct taller buildings like Kitchener, Windsor, Markham, etc.

Buildings over 100 meters

Toronto - ON - Toronto Skyline2
Toronto, home to the tallest building in Canada.
Ottawa skyline Wikivoyage
Ottawa, Canada's capital city.
Niagara falls at Night
Niagara Falls is home to the tallest hotel in Canada.
HamiltonOntarioSkylineC
Hamilton is home to Ontario's 59th tallest building.
London, Ontario, Canada- The Forest City from above
London is home to Ontario's 74th tallest building.
Casino Windsor hotel expansion april 2008
Windsor, Ontario is the southernmost city in Canada.

This list ranks buildings in Ontario that stand between least 100 m (328 ft) tall, based on CTBUH height measurement standards. This includes spires and architectural details but does not include antenna masts. An equal sign (=) following a rank indicates the same height between two or more buildings. Freestanding observation and/or telecommunication towers, while not habitable buildings, are included for comparison purposes; however, they are not ranked. One such tower is the CN Tower.

Rank Name Image Height
m / ft
Floors Year City Notes Ref
N/A CN Tower Toronto - ON - Toronto Harbourfront7.jpg 553 / 1,815 -147 1976 Toronto
1 First Canadian Place Toronto - ON - First Canadian Place.jpg 298 / 978 78 1976 Toronto
  • Tallest building in Canada since 1976
  • 6th tallest building in the world at the time of its completion
  • Tallest building in the world outside of Chicago and New York City at the time of its completion
  • Tallest building completed in Ontario in the 1970s.
  • Formerly known as First Bank Tower
2 The St. Regis Toronto Trump Tower Toronto.jpg 277 / 908 59 2011 Toronto
  • Tallest mixed-use building in Canada.
  • Second-tallest building in Canada by standard height.
  • Tallest building completed in Ontario in the 2010s.
3 Scotia Plaza Scotia Plaza 2009.JPG 275 / 902 68 1988 Toronto
  • Tallest building completed in Ontario in the 1980s.
4 Aura 272 / 892 80 2014 Toronto
5 Brookfield Place Toronto - ON - TD Canada Trust Tower2.jpg 261 / 856 53 1990 Toronto
  • Tallest building completed in Ontario in the 1990s.
6 Commerce Court West Toronto - ON - Commerce Court West.jpg 239 / 784 57 1972 Toronto
7 Toronto-Dominion Tower TD Centre View from Yonge and King.JPG 223 / 731 56 1967 Toronto
  • Tallest building completed in Ontario in the 1960s.
8 Bay Adelaide Centre West Tower Bay Adelaide first tower nearing completion - cropped.jpg 218 / 715 51 2009 Toronto
  • Tallest building completed in Ontario in the 2000s.
9 Ritz-Carlton Toronto Ritz Carlton Toronto far.jpg 208 / 684 53 2011 Toronto
10 Bay Wellington Tower Bay Wellington Tower.jpg 207 / 679 49 1991 Toronto
11 Four Seasons Hotel and Residences West New Four Seasons Yorkville.jpg 205 / 650 55 2011 Toronto
12 88 Scott 88 Scott Toronto.jpg 204 / 669 58 2018 Toronto
13 Maple Leaf Square North Tower Maple Leaf Square, North Tower.jpg 186 / 610 54 2010 Toronto
14= Royal Trust Tower TD Centre Toronto.jpg 183 / 600 46 1969 Toronto
14= RBC Centre RBC Centre.JPG 183 / 600 42 2009 Toronto
16= Royal Bank Plaza South Royal Bank Building.jpg 180 / 591 40 1979 Toronto
16= Absolute World South Absolute Towers Mississauga. South-west view.jpg 180 / 589 56 2011 Mississauga 3rd Tallest building in Ontario outside of the city of Toronto. Also 3rd Tallest skyscraper in a suburban city in North America.
17 Hilton Niagara Falls Tower 2 Hilton Niagara Falls.jpg 177 / 580 58 2009 Niagara Falls Tallest building in Ontario outside of the Greater Toronto Area. Tallest hotel in Canada.
18 One King Street West One King St W, Toronto.jpg 176 / 578 51 2005 Toronto
  • Tallest completed all-residential skyscraper in Toronto.
19 Maple Leaf Square South Tower Success Tower I at the Pinnacle Centre.jpg 174 / 571 50 2010 Toronto
20 44 Charles Street West Manulife Centre.jpg 166 / 545 51 1972 Toronto
  • 25th-tallest building in Canada.
21 Quantum 2 Minto Midtown.JPG 165 / 541 51 2008 Toronto
22 Residences of College Park Residences of College Park.jpg 163 / 535 51 2006 Toronto
23 Success Tower Success Tower.JPG 162 / 531 54 2009 Toronto
24 Absolute World North Absolute Towers Mississauga. South-west view.jpg 161.2 / 529 50 2012 Mississauga
N/A Skylon Tower Ilievaart-falls0805 7584smaller.jpg 158.5 / 520 - 1965 Niagara Falls Tallest freestanding structure in Ontario when completed in 1965. Overtaken by the Toronto-Dominion Centre in 1967.
25 The Uptown Residences Uptown, Toronto.jpg 158 / 518 48 2011 Toronto
26 Festival Tower TIFF Lightbox Toronto Ontario Canada.jpg 157 / 514 42 2010 Toronto
27 TD Waterhouse Tower TD Waterhouse Tower.JPG 154 / 504 39 1985 Toronto
28 35 Mariner 35 Mariner, Harbourview Estates.jpg 153 / 503 49 2005 Toronto
29 Montage CityPlace Montage.JPG 153 / 502 48 2009 Toronto
29 The 250 The 250 August 2017 01.jpg 151 / 494 35 1992 Toronto Atop the Toronto Eaton Centre.
30= Two Bloor West Two Bloor West, CIBC building.JPG 149 / 488 34 1973 Toronto
30= X Condominium X Condominium Toronto 2011.jpg 149 / 488 45 2010 Toronto
32= West One CityPlace West One.JPG 148 / 486 49 2007 Toronto
32= Simcoe Place Simcoe Place.JPG 148 / 486 33 1995 Toronto
34 Residences of College Park South Residences of College Park.jpg 147 / 482 45 2008 Toronto
35 Exchange Tower TSXExchangetower.jpg 146 / 479 30 1983 Toronto
36 Commerce Court North Commerce Court North.JPG 145 / 476 34 1931 Toronto
37 Simpson Tower Simpson Tower.JPG 144 / 472 33 1968 Toronto
38= Claridge Icon Claridge Icon 2022.jpg 143 / 469 45 2022 Ottawa
38= SP!RE Spire, Toronto.jpg 143 / 469 43 2007 Toronto
40= Cadillac Fairview Tower Cadillac Fairview Tower.JPG 142 / 466 36 1981 Toronto
40= One Park Tower Night in Mississauga (16275312609).jpg 142 / 466 38 2008 Mississauga
42 Murano South Murano, Toronto.JPG 140 / 459 41 2009 Toronto
43 Pantages Tower Pantages Tower August 2017 01.jpg 140 / 458 46 2003 Toronto
44 The Met Condos The Met, Toronto.JPG 139 / 456 43 2007 Toronto
45= CASA Tower on Charles Street.jpg 138 / 453 45 2009 Toronto
45= Palace Place Palace Pier.jpg 138 / 453 46 1991 Toronto
45= Palace Pier 138 / 453 46 1978 Toronto
48 Oxford Tower Oxford Tower, Toronto.JPG 137 / 449 33 1979 Toronto
49 Sheraton Centre Hotel Downtown toronto.jpg 135 / 443 43 1972 Toronto
  • Tallest all-hotel building in Toronto.
50 Two Bloor East HBC Tower.JPG 134 / 439 34 1974 Toronto
51 Ernst & Young Tower Ernst & Young Tower.JPG 133 / 437 31 1991 Toronto
52 N1/N2 133 / 436 41 2007 Toronto
53 Empire Tower Condo Towers Bayview Village.jpg 130 / 427 28 2005 Toronto
54 Dundee Place Dundee Place.JPG 129 / 424 31 1991 Toronto
55= Leaside Towers I The Leaside Towers.jpg 129 / 423 44 1970 Toronto
55= Leaside Towers II 129 / 423 44 1970 Toronto
57= Canadian Pacific Tower Canadian Pacific Tower.JPG 128 / 420 32 1974 Toronto
57= Metro Hall West Metro Hall.jpg 128 / 420 27 1992 Toronto
57= DTK Condos DTK Condos - Kitchener, ON.jpg 128 / 420 39 2021 Kitchener Tallest building in Kitchener-Waterloo.
59= Landmark Place LandmarkPlaceHamilton.JPG 127 / 417 43 1974 Hamilton Tallest building in Hamilton.
59= Pinnacle A Pinacle A.jpg 127 / 417 40 2006 Toronto
59= 18 Yonge 18 Yonge.jpg 127 / 417 39 2006 Toronto
59= Westin Harbour Castle South Tower WestinHarbourCastleHotel.jpg 127 / 417 38 1975 Toronto
63 Marriott Hotel/Plaza 2 Apartments Marriott Hotel Toronto.JPG 126 / 415 41 1975 Toronto
64= Verve Verve, Toronto.jpg 126 / 413 39 2008 Toronto
64= Quantum Minto Midtown.JPG 126 / 413 37 2007 Toronto
64= Crystal Blu Crystal Blu.jpg 126 / 413 34 2010 Toronto
67 Chicago Night in Mississauga (16435603466).jpg 125 / 410 35 2010 Mississauga
68 Sun Life Centre East Tower Sun Life Centre.jpg 125 / 410 28 1984 Toronto
69 Yonge Eglinton Centre I Yonge Eglinton Centre.JPG 124 / 408 30 1974 Toronto
70 Royal York Hotel Fairmont Royal York Toronto.jpg 124 / 407 28 1929 Toronto
71 10 Navy 123 / 402 40 2005 Toronto
72 Solstice 121 / 397 37 2008 Mississauga
73 Embassy Suites Hotel Niagara Falls CasinoNiagara.JPG 118 / 387 42 2003 Niagara Falls
74 One London Place OneLondonPlace.JPG 113.4 / 372 24 1992 London Tallest building in London.
75 The Park Mansion 112.4 / 369 36 1990 Mississauga
76= Place de Ville C Place de Ville C.JPG 112 / 367 29 1972 Ottawa
76= Absolute Vision Absolute Condos - Construction - June 4th, 2009.jpg 112 / 367 35 2009 Mississauga
78 Caesars Windsor Augustus Tower Caesar sign on Casino Windsor.jpg 111 / 364 27 2008 Windsor Tallest building in Windsor.
79 Minto Metropole Minto Metropole Ottawa Ontario 2005.jpg 109 / 354 32 2004 Ottawa
80= 20/22 George St. 20 22 George HamOnt 2019.04.15.jpg 106 / 348 32 2019 Hamilton
80= Charlie West 106 / 348 31 2021 Kitchener
80= The Dale Tower 1 The Dale Tower 1.jpg 106 / 348 32 2020 (Topped-out) Ottawa
83 Le Parc Le parc condo.jpg 104 / 341 30 1988 Ottawa
84 100 King Street West 100 King Street West, Hamilton, Ontario.jpg 103 / 338 25 1973 Hamilton
85= World on Yonge Condos - North Tower 102 / 335 32 2014 Markham Tallest buildings in Markham.
85= World on Yonge Condos - South Tower 102 / 335 32 2014 Markham Tallest buildings in Markham.

See also

By city

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List of tallest buildings in Ontario Facts for Kids. Kiddle Encyclopedia.