List of tallest buildings in Ontario Facts for Kids

Ontario is a big province in Canada, and it's home to some really tall buildings! This list will show you the tallest skyscrapers and high-rise buildings across Ontario. We'll explore buildings in nine different cities: Hamilton, Kitchener, London, Markham, Mississauga, Niagara Falls, Ottawa, Toronto, and Windsor. Each of these cities has buildings that are taller than 100 meters (about 328 feet)!

The very tallest building in Ontario is First Canadian Place in Toronto. It stands super tall at 298 meters (978 feet). This amazing building was finished in 1976. It's not just the tallest in Ontario, it's also the tallest building in all of Canada! When it was first built, it was the tallest building in the world outside of big cities like Chicago and New York City.

In some cities, like Ottawa, there are rules about how tall buildings can be. For a long time, buildings in downtown Ottawa couldn't be taller than the Peace Tower on Parliament Hill. This was to make sure the famous tower always stood out. Even with these rules, the tallest building in Ottawa now reaches 143 meters (about 469 feet).

Recently, many cities in Ontario have been building lots of new, tall structures. Cities like Kitchener, Windsor, and Markham are growing upwards. They are adding more tall buildings and making their city centers denser. This means more people can live and work in these areas.

Ontario's Tallest Buildings (Over 100 Meters)

Toronto is home to Canada's tallest building.

Ottawa is Canada's capital city.

Niagara Falls has Canada's tallest hotel.

Hamilton has one of Ontario's tallest buildings.

London has one of Ontario's tallest buildings.

Windsor, Ontario is Canada's southernmost city.

This list shows buildings in Ontario that are at least 100 meters (328 feet) tall. We measure their height based on rules from the CTBUH. This includes pointy tops and other parts of the building's design, but not antennas. If two or more buildings have the exact same height, they will share a rank with an equal sign (=).

You'll also see some very tall towers that aren't buildings, like the CN Tower. These are included for fun comparison, but they don't get a rank because they aren't places where people live or work on many floors.

Rank	Name	Height m / ft	Floors	Year	City	Cool Facts
N/A	CN Tower	553 / 1,815	-147	1976	Toronto	It was the tallest free-standing structure in the world from 1975 to 2007. It's still the tallest free-standing structure in the Western Hemisphere. It doesn't have floors like a regular building, but it's as tall as 147 stories!
1	First Canadian Place	298 / 978	78	1976	Toronto	It's been the tallest building in Canada since 1976. When it was built, it was the 6th tallest building in the world. It was also the tallest building outside of Chicago and New York City back then. It used to be called First Bank Tower.
2	The St. Regis Toronto	277 / 908	59	2011	Toronto	This building has both homes and businesses inside. It's the second-tallest building in Canada.
3	Scotia Plaza	275 / 902	68	1988	Toronto	This was the tallest building finished in Ontario during the 1980s.
4	Aura	272 / 892	80	2014	Toronto
5	Brookfield Place	261 / 856	53	1990	Toronto	This was the tallest building finished in Ontario during the 1990s.
6	Commerce Court West	239 / 784	57	1972	Toronto
7	Toronto-Dominion Tower	223 / 731	56	1967	Toronto	This was the tallest building finished in Ontario during the 1960s.
8	Bay Adelaide Centre West Tower	218 / 715	51	2009	Toronto	This was the tallest building finished in Ontario during the 2000s.
9	Ritz-Carlton Toronto	208 / 684	53	2011	Toronto
10	Bay Wellington Tower	207 / 679	49	1991	Toronto
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=	Royal Trust Tower	183 / 600	46	1969	Toronto
14=	RBC Centre	183 / 600	42	2009	Toronto
16=	Royal Bank Plaza South	180 / 591	40	1979	Toronto
16=	Absolute World South	180 / 589	56	2011	Mississauga	This is the 3rd tallest building in Ontario outside of Toronto.
17	Hilton Niagara Falls Tower 2	177 / 580	58	2009	Niagara Falls	This is the tallest building in Ontario outside the Greater Toronto Area. It's also the tallest hotel in Canada!
18	One King Street West	176 / 578	51	2005	Toronto	This is the tallest building in Toronto that is only for homes.
19	Maple Leaf Square South Tower	174 / 571	50	2010	Toronto
20	44 Charles Street West	166 / 545	51	1972	Toronto	It's the 25th tallest building in Canada.
21	Quantum 2	165 / 541	51	2008	Toronto
22	Residences of College Park	163 / 535	51	2006	Toronto
23	Success Tower	162 / 531	54	2009	Toronto
24	Absolute World North	161.2 / 529	50	2012	Mississauga
N/A	Skylon Tower	158.5 / 520	-	1965	Niagara Falls	This was the tallest free-standing structure in Ontario when it was built. The Toronto-Dominion Centre became taller in 1967.
25	The Uptown Residences	158 / 518	48	2011	Toronto
26	Festival Tower	157 / 514	42	2010	Toronto
27	TD Waterhouse Tower	154 / 504	39	1985	Toronto
28	35 Mariner	153 / 503	49	2005	Toronto
29	Montage	153 / 502	48	2009	Toronto
29	The 250	151 / 494	35	1992	Toronto	This building sits on top of the Toronto Eaton Centre mall.
30=	Two Bloor West	149 / 488	34	1973	Toronto
30=	X Condominium	149 / 488	45	2010	Toronto
32=	West One	148 / 486	49	2007	Toronto
32=	Simcoe Place	148 / 486	33	1995	Toronto
34	Residences of College Park South	147 / 482	45	2008	Toronto
35	Exchange Tower	146 / 479	30	1983	Toronto
36	Commerce Court North	145 / 476	34	1931	Toronto	This was the tallest building finished in Ontario during the 1930s. It was the tallest building in Canada from 1930 to 1962.
37	Simpson Tower	144 / 472	33	1968	Toronto
38=	Claridge Icon	143 / 469	45	2022	Ottawa	This is the tallest building in the National Capital Region (Ottawa and Gatineau). It's also the tallest building in Ontario outside of the Golden Horseshoe area.
38=	SP!RE	143 / 469	43	2007	Toronto
40=	Cadillac Fairview Tower	142 / 466	36	1981	Toronto
40=	One Park Tower	142 / 466	38	2008	Mississauga
42	Murano South	140 / 459	41	2009	Toronto
43	Pantages Tower	140 / 458	46	2003	Toronto
44	The Met Condos	139 / 456	43	2007	Toronto
45=	CASA	138 / 453	45	2009	Toronto
45=	Palace Place	138 / 453	46	1991	Toronto
45=	Palace Pier	138 / 453	46	1978	Toronto
48	Oxford Tower	137 / 449	33	1979	Toronto
49	Sheraton Centre Hotel	135 / 443	43	1972	Toronto	This is the tallest building in Toronto that is only a hotel.
50	Two Bloor East	134 / 439	34	1974	Toronto
51	Ernst & Young Tower	133 / 437	31	1991	Toronto
52	N1/N2	133 / 436	41	2007	Toronto
53	Empire Tower	130 / 427	28	2005	Toronto
54	Dundee Place	129 / 424	31	1991	Toronto
55=	Leaside Towers I	129 / 423	44	1970	Toronto
55=	Leaside Towers II	129 / 423	44	1970	Toronto
57=	Canadian Pacific Tower	128 / 420	32	1974	Toronto
57=	Metro Hall West	128 / 420	27	1992	Toronto
57=	DTK Condos	128 / 420	39	2021	Kitchener	This is the tallest building in the Kitchener-Waterloo area.
59=	Landmark Place	127 / 417	43	1974	Hamilton	This is the tallest building in Hamilton.
59=	Pinnacle A	127 / 417	40	2006	Toronto
59=	18 Yonge	127 / 417	39	2006	Toronto
59=	Westin Harbour Castle South Tower	127 / 417	38	1975	Toronto
63	Marriott Hotel/Plaza 2 Apartments	126 / 415	41	1975	Toronto
64=	Verve	126 / 413	39	2008	Toronto
64=	Quantum	126 / 413	37	2007	Toronto
64=	Crystal Blu	126 / 413	34	2010	Toronto
67	Chicago	125 / 410	35	2010	Mississauga
68	Sun Life Centre East Tower	125 / 410	28	1984	Toronto
69	Yonge Eglinton Centre I	124 / 408	30	1974	Toronto
70	Royal York Hotel	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	118 / 387	42	2003	Niagara Falls
74	One London Place	113.4 / 372	24	1992	London	This is the tallest building in London.
75	The Park Mansion	112.4 / 369	36	1990	Mississauga
76=	Place de Ville C	112 / 367	29	1972	Ottawa
76=	Absolute Vision	112 / 367	35	2009	Mississauga
78	Caesars Windsor Augustus Tower	111 / 364	27	2008	Windsor	This is the tallest building in Windsor.
79	Minto Metropole	109 / 354	32	2004	Ottawa
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
83	Le Parc	104 / 341	30	1988	Ottawa
84	100 King Street West	103 / 338	25	1973	Hamilton
85=	World on Yonge Condos - North Tower	102 / 335	32	2014	Markham	These are the tallest buildings in Markham.
85=	World on Yonge Condos - South Tower	102 / 335	32	2014	Markham	These are the tallest buildings in Markham.

List of tallest buildings in Ontario facts for kids

Ontario's Tallest Buildings (Over 100 Meters)

See also

By city