400 ThirdCalgary
Defined by its striking glass curtain wall, 400 Third stands as an iconic presence on Calgary’s skyline. Celebrated for its architectural excellence, expansive panoramic views, and LEED® certification, the building sets a benchmark for modern but sustainable workplaces.
Designed to enhance both well-being and productivity, 400 Third features an efficient floor plate, seamless access to major transit and driving routes, and immediate proximity to a wide range of retail and amenity offerings - creating an exceptional environment for today’s forward-thinking businesses.
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Available Units
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Sq Ft. Available
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Floors
360 Virtual Tours
Available space
Suite 1470
4,060 sq ft
Available Immediately
This modern, updated office unit features seven private offices and an open area to accommodate workstations. The offices are partially furnished.
Suite 1510
10,022 sq ft
Available Immediately
This office intensive unit contains 24 offices with high-rise views to the southwest. Suite is currently being updated with new carpet & paint, an updated kitchen, and new reception area.
Suite 1600
21,246 sq ft
Available Immediately
This full floor opportunity includes a mix of office and open area, two large boardrooms and two kitchens. Can be made contiguous with suite 1510 for 31,268 SF.
Suite 1800
21,244 sq ft
Available January 2027
Floor 18 offers a full-floor opportunity featuring a well-balanced mix of private offices and open workspace. The floor includes 29 perimeter offices, providing excellent natural light throughout, along with large, renovated kitchen areas with expansive mountain views.
Suitable for a single-floor tenant or connect seamlessly to Floor 19 via an internal stairwell (which can be removed if not required). Contiguous for up to 42,488 SF.
Suite 1900
21,244 sq ft
Available January 2027
Floor 19 presents a highly efficient full-floor layout with a combination of private offices and open work areas. The floor features 26 perimeter offices, generous natural light, large renovated kitchens, and panoramic mountain views.
Floor 19 is contiguous with Floor 18 and connected via an internal stairwell, offering a unique multi-floor opportunity for larger users. The stairwell can be removed, allowing Floor 19 to function as a standalone floor for a single-floor tenant. Contiguous for up to 42,488 SF.
Suite 3300
21,754 sq ft
Available April 2027
This full floor opportunity features 15 perimeter offices, open-plan workspace for 56 workstations, four small meeting rooms, kitchens, staff lounge, rolling file area and servery.
Suite 3410
2,036 sq ft
Available April 2027
Small high-rise suite with two offices and a meeting room.
Suite 3500
22,233 sq ft
Available April 2027
This full floor opportunity features 39 perimeter offices, and open area for up to 23 workstations, two meeting rooms, kitchen and an internal staircase to floors 36-38. Contiguous space up to 108,581 SF available on floors 35–39.