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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.
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[N 1] | ![]() |
553 / 1,815 | -147 | 1976 | Toronto |
|
[1][2] |
1 | First Canadian Place | ![]() |
298 / 978 | 78 | 1976 | Toronto |
|
[3][4] |
2 | The St. Regis Toronto | ![]() |
277 / 908 | 59 | 2011 | Toronto |
|
[5] |
3 | Scotia Plaza | 275 / 902 | 68 | 1988 | Toronto |
|
[6][7] | |
4 | Aura | 272 / 892 | 80 | 2014 | Toronto | |||
5 | Brookfield Place | ![]() |
261 / 856 | 53 | 1990 | Toronto |
|
[8][9] |
6 | Commerce Court West | ![]() |
239 / 784 | 57 | 1972 | Toronto | ||
7 | Toronto-Dominion Tower | 223 / 731 | 56 | 1967 | Toronto |
|
[10][11] | |
8 | Bay Adelaide Centre West Tower | ![]() |
218 / 715 | 51 | 2009 | Toronto |
|
|
9 | Ritz-Carlton Toronto | ![]() |
208 / 684 | 53 | 2011 | Toronto | ||
10 | Bay Wellington Tower | ![]() |
207 / 679 | 49 | 1991 | Toronto | [12][13] | |
11 | Four Seasons Hotel and Residences West | ![]() |
205 / 650 | 55 | 2011 | Toronto | ||
12 | 88 Scott | ![]() |
204 / 669 | 58 | 2018 | Toronto | ||
13 | Maple Leaf Square North Tower | ![]() |
186 / 610 | 54 | 2010 | Toronto | [14] | |
14= | Royal Trust Tower | ![]() |
183 / 600 | 46 | 1969 | Toronto | [15][16] | |
14= | RBC Centre | 183 / 600 | 42 | 2009 | Toronto | [17][18] | ||
16= | Royal Bank Plaza South | ![]() |
180 / 591 | 40 | 1979 | Toronto | [19][20] | |
16= | Absolute World South | ![]() |
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 | ![]() |
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 | ![]() |
176 / 578 | 51 | 2005 | Toronto |
|
[22] |
19 | Maple Leaf Square South Tower | ![]() |
174 / 571 | 50 | 2010 | Toronto | [23] | |
20 | 44 Charles Street West | ![]() |
166 / 545 | 51 | 1972 | Toronto |
|
[24][25] |
21 | Quantum 2 | 165 / 541 | 51 | 2008 | Toronto | [26] | ||
22 | Residences of College Park | ![]() |
163 / 535 | 51 | 2006 | Toronto | [27][28] | |
23 | Success Tower | 162 / 531 | 54 | 2009 | Toronto | [29] | ||
24 | Absolute World North | ![]() |
161.2 / 529 | 50 | 2012 | Mississauga | [30] | |
N/A | Skylon Tower | ![]() |
158.5 / 520 | - | 1965 | Niagara Falls | Tallest freestanding structure in Ontario when completed in 1965. Overtaken by the Toronto-Dominion Centre in 1967. | [31] |
25 | The Uptown Residences | ![]() |
158 / 518 | 48 | 2011 | Toronto | [32] | |
26 | Festival Tower | ![]() |
157 / 514 | 42 | 2010 | Toronto | [33][34] | |
27 | TD Waterhouse Tower | 154 / 504 | 39 | 1985 | Toronto | [35][36] | ||
28 | 35 Mariner | ![]() |
153 / 503 | 49 | 2005 | Toronto | [37][38] | |
29 | Montage | 153 / 502 | 48 | 2009 | Toronto | [39] | ||
29 | The 250 | ![]() |
151 / 494 | 35 | 1992 | Toronto | Atop the Toronto Eaton Centre. | [40][41] |
30= | Two Bloor West | 149 / 488 | 34 | 1973 | Toronto | [42][43] | ||
30= | X Condominium | ![]() |
149 / 488 | 45 | 2010 | Toronto | [44] | |
32= | West One | 148 / 486 | 49 | 2007 | Toronto | [45][46] | ||
32= | Simcoe Place | 148 / 486 | 33 | 1995 | Toronto | [47][48] | ||
34 | Residences of College Park South | ![]() |
147 / 482 | 45 | 2008 | Toronto | [49][50] | |
35 | Exchange Tower | ![]() |
146 / 479 | 30 | 1983 | Toronto | [51][52] | |
36 | Commerce Court North | 145 / 476 | 34 | 1931 | Toronto |
|
[53] | |
37 | Simpson Tower | 144 / 472 | 33 | 1968 | Toronto | [54][55] | ||
38= | Claridge Icon | ![]() |
143 / 469 | 45 | 2022 | Ottawa |
|
[56] |
38= | SP!RE | ![]() |
143 / 469 | 43 | 2007 | Toronto | [57][58] | |
40= | Cadillac Fairview Tower | 142 / 466 | 36 | 1981 | Toronto | [59][60] | ||
40= | One Park Tower | ![]() |
142 / 466 | 38 | 2008 | Mississauga | [61] | |
42 | Murano South | 140 / 459 | 41 | 2009 | Toronto | [62] | ||
43 | Pantages Tower | ![]() |
140 / 458 | 46 | 2003 | Toronto | [63][64] | |
44 | The Met Condos | 139 / 456 | 43 | 2007 | Toronto | [65][66] | ||
45= | CASA | ![]() |
138 / 453 | 45 | 2009 | Toronto | [67] | |
45= | Palace Place | ![]() |
138 / 453 | 46 | 1991 | Toronto | [68][69] | |
45= | Palace Pier | 138 / 453 | 46 | 1978 | Toronto | [70][71] | ||
48 | Oxford Tower | 137 / 449 | 33 | 1979 | Toronto | [72][73] | ||
49 | Sheraton Centre Hotel | ![]() |
135 / 443 | 43 | 1972 | Toronto |
|
[74][75] |
50 | Two Bloor East | 134 / 439 | 34 | 1974 | Toronto | [76][77] | ||
51 | Ernst & Young Tower | 133 / 437 | 31 | 1991 | Toronto | [78][79] | ||
52 | N1/N2 | 133 / 436 | 41 | 2007 | Toronto | [80][81] | ||
53 | Empire Tower | ![]() |
130 / 427 | 28 | 2005 | Toronto | [82][83] | |
54 | Dundee Place | 129 / 424 | 31 | 1991 | Toronto | [84][85] | ||
55= | Leaside Towers I | ![]() |
129 / 423 | 44 | 1970 | Toronto | [86][87] | |
55= | Leaside Towers II | 129 / 423 | 44 | 1970 | Toronto | [88][89] | ||
57= | Canadian Pacific Tower | 128 / 420 | 32 | 1974 | Toronto | [90][91] | ||
57= | Metro Hall West | ![]() |
128 / 420 | 27 | 1992 | Toronto | [92][93] | |
57= | DTK Condos | ![]() |
128 / 420 | 39 | 2021 | Kitchener | Tallest building in Kitchener-Waterloo. | |
59= | Landmark Place | 127 / 417 | 43 | 1974 | Hamilton | Tallest building in Hamilton. | [94] | |
59= | Pinnacle A | ![]() |
127 / 417 | 40 | 2006 | Toronto | [95] | |
59= | 18 Yonge | ![]() |
127 / 417 | 39 | 2006 | Toronto | [96] | |
59= | Westin Harbour Castle South Tower | ![]() |
127 / 417 | 38 | 1975 | Toronto | [97] | |
63 | Marriott Hotel/Plaza 2 Apartments | 126 / 415 | 41 | 1975 | Toronto | [98] | ||
64= | Verve | ![]() |
126 / 413 | 39 | 2008 | Toronto | [99] | |
64= | Quantum | 126 / 413 | 37 | 2007 | Toronto | [100] | ||
64= | Crystal Blu | ![]() |
126 / 413 | 34 | 2010 | Toronto | [101] | |
67 | Chicago | ![]() |
125 / 410 | 35 | 2010 | Mississauga | [102] | |
68 | Sun Life Centre East Tower | ![]() |
125 / 410 | 28 | 1984 | Toronto | [103][104] | |
69 | Yonge Eglinton Centre I | 124 / 408 | 30 | 1974 | Toronto | [105] | ||
70 | Royal York Hotel | ![]() |
124 / 407 | 28 | 1929 | Toronto | [106] | |
71 | 10 Navy | 123 / 402 | 40 | 2005 | Toronto | [107] | ||
72 | Solstice | 121 / 397 | 37 | 2008 | Mississauga | [108] | ||
73 | Embassy Suites Hotel Niagara Falls | 118 / 387 | 42 | 2003 | Niagara Falls | |||
74 | One London Place | 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 | 112 / 367 | 29 | 1972 | Ottawa | [109] | ||
76= | Absolute Vision | ![]() |
112 / 367 | 35 | 2009 | Mississauga | ||
78 | Caesars Windsor Augustus Tower | ![]() |
111 / 364 | 27 | 2008 | Windsor | Tallest building in Windsor. | |
79 | Minto Metropole | ![]() |
109 / 354 | 32 | 2004 | Ottawa | [110] | |
80= | 20/22 George St. | ![]() |
106 / 348 | 32 | 2019 | Hamilton | ||
80= | Charlie West | 106 / 348 | 31 | 2021 | Kitchener | |||
80= | The Dale Tower 1 | ![]() |
106 / 348 | 32 | 2020 (Topped-out) | Ottawa | [111] | |
83 | Le Parc | ![]() |
104 / 341 | 30 | 1988 | Ottawa | [112] | |
84 | 100 King Street West | ![]() |
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. | ||
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