Over the last decade, Toronto has seen an unprecedented boom of highrises, with construction cranes becoming an almost iconic element of the Downtown streetscape. After 10 years of non-stop activity already behind us, the construction surge has continued, showing no sign of slowing its record-setting pace. For much of the decade, Toronto has led North America in new highrise construction, evidencing both the suddenness and the scale of the city's transformation.

Keeping you up to date with the city's expanding skyline, we bring you a list of the 10 tallest buildings currently under construction in Toronto. 

10. EY Tower / Richmond Adelaide III / 100 Adelaide West

EY Tower, image courtesy of Oxford Properties

Despite its abundance of names, Oxford Properties' 188-metre EY Tower is, in fact, one building. The 40-storey, Kohn Pedersen Fox and WZMH Architects-designed tower is bringing a unique, crystalline shape to the city's skyline, while incorporating the Concourse Building's restored Art Deco facade at its base. Currently, the tower can be seen rising to approximately half of its final height, with the first pieces of cladding now being installed. 

9. E Condos

Rendering of E Condos, image courtesy of Bazis

The second development on our list, E Condos, is currently under construction by Bazis north of the Downtown core at Yonge and Eglinton. Set to hit 194 metres and 58 floors, the condominium tower will change the face of the intersection and future Midtown transit hub. The first of a bunch of extremely tall buildings proposed for the area, The Rosario Varacalli-designed development will have a distinctive amenity level roughly 2/5ths of the way up the tower, featuring a unique pool with a view over the street below. A redesign is in the works for the project's shorter building (left), which will likely be widened, given that Bazis has purchased the adjacent property.

8. YC Condos 

YC Condos, image courtesy of Canderel

This Canderel development just north of College and Yonge will rise 198 metres. Designed by Graziani + Corazza Architects and containing 63 floors, the development will bring some additional height to an area that is currently dominated by Aura, Canada's tallest residential building. Shoring is currently underway on the development, which means we have a long way to go before we see completion in 2019. 

7. 88 Scott

88 Scott, image courtesy of Concert Properties

Located on the east end of the Central Business District (CBD) and designed by Page+Steele / IBI Group Architects, 88 Scott is set to provide 58 floors of large luxury condominium residences rising 204 metres into the sky. While the parking levels are currently being poured, later stages of the development by Concert Properties will integrate a heritage 1930s limestone office building façade at its base. Residents will bring an additional round-the-clock population to the CBD which is currently well known for quieting down after business hours.

6. The Residences of 488 University

The Residences of 488 University, image courtesy of Amexon Development

The Residences of 488 University, designed by Core Architects, will rise 207 metres. Possibly the most interesting development on the list in terms of engineering, the development will feature 37 new floors of condominiums constructed on top of an existing 18-floor office building. Through the use of new X bracing on the side of the office tower, Amexon Development has allowed the new condominium tower to be constructed above. While interior demolition of the existing office tower is currently underway, expect to see much more action on this development as it approaches tentative occupancy in November of 2017.

5. Massey Tower

Massey Tower, image courtesy of MOD

Massey Tower, a 208-metre, 60-floor condominium, is currently wrapping up its excavation phase. Located on Yonge Street just north of Queen, the development includes the restoration of a historic bank building as well as a significant community contribution in the form of a land transfer to Massey Hall, the development's namesake. The developer, MOD developments, has recently received positive reviews for the heritage preservation on its other project, Five St. Joseph, so we look forward to seeing this Hariri Pontarini Architects-designed project completed in 2018.

4. Eau du Soleil

Eau du Soleil, image courtesy of Empire

Alongside E Tower, Empire's Eau du Soleil is the only building on our list located outside the Downtown core. The two-building development recently started construction, with shoring and excavation getting underway in late Spring. At 66 storeys, the taller of the two Zeidler Partnership Architects and Richmond Architects-designed buildings will rise to a height of 228 metres, taking fourth place on our list. The second tower will stand at a more modest, but still impressive, 49 storeys.

3. Ten York

Ten York, image courtesy of Tridel

At third place on our list is Ten York. Rising from an unorthodox triangular lot, Tridel's 224-metre, 68-floor condominium, designed by Wallman Architects, replaces the old downtown city impound lot. The triangular lot will result in a unique tower with an impressionable look for those traveling westbound on the Gardiner expressway. While construction of the tower has only recently risen above grade, it will certainly be an exciting building to see completed in 2017.

2. Harbour Plaza Residences

Harbour Plaza with Sun Life Financial Tower (left), image courtesy of Menkes

Now rising well above the podium levels, these two towers on the waterfront will rise 224 and 233 metres each, with the shorter of the two tying Ten York for third place, and the taller taking second place on our list. With the 35-storey Sun Life Financial Centre Tower standing in front of the towers, this Menkes development is one of the largest projects in the city today. The two architectsAlliance-designed condominium towers will count 62 and 66 floors, adding significant residential density to the rapidly growing South Core area. With a direct PATH connection, extensive amenities, and proximity to the waterfront, the demand to live here is obviously strong. 

1. One Bloor East

One Bloor East, image courtesy of Great Gulf

The big one—for now. One Bloor is possibly the longest running development in the city, with the first renderings for an earlier design (by another developer) surfacing in 2001. This final incarnation by Great Gulf, howeverfeaturing a design by Hariri Pontarini Architectsis set to reach completion by next year. Rising 257 metres, the building will tower over Yonge and Bloor. Although it beats out the next tallest building in the area—the Four Seasons—by over 50 metres, it could have more competition in the future with the recently proposed "The One", directly across the street, which could hit a dizzying 329 metres as currently proposed. One Bloor East will contain 73 floors of condominiums stacked on top of 2 floors of retail. With a direct connection to two subway lines, it's the perfect place for Toronto's tallest building under construction.

Related Companies:  Amexon Development Corporation, ANTAMEX, architects—Alliance, Baker Real Estate Incorporated, Bass Installation, Cecconi Simone, Core Architects, Cornerstone Marketing Realty, Dream Unlimited, entro, EQ Building Performance Inc., First Capital, Flynn Group of Companies, Graziani + Corazza Architects, Great Gulf, Hariri Pontarini Architects, II BY IV DESIGN, Isotherm Engineering Ltd., Jablonsky, Ast and Partners, Janet Rosenberg & Studio, Kramer Design Associates Limited, L.A. Inc., McIntosh Perry, MCW Consultants Ltd, Menkes Developments, Metropia, Motioneering, NAK Design Group, PCL Construction, Peter McCann Architectural Models Inc., Rebar Enterprises Inc, RioCan Living, RJC Engineers, Ryan Design International, Sigmund Soudack & Associates, Sweeny &Co Architects Inc., Tridel, Trillium Architectural Products, TUCKER HIRISE Construction, U31, Unilux HVAC Industries Inc., Urban Art & Metal Works Inc., Walters Group, WZMH Architects, Zeidler Architecture