
Peoplefirst Developments / Astra Group
909 5 Avenue SW, Calgary, AB T2P 3G5, Alberta
Cornerstone is a completed residential building in downtown Calgary, developed by Peoplefirst Developments together with Astra Group. It sits at 909 5 Avenue SW, right in the city's central business district.
The building offers two- and three-bedroom suites between about 653 and 950 square feet. Construction finished in 2024, and residents began moving in during the first quarter of that year.
Cornerstone sits within Calgary's downtown core, where day-to-day needs are within easy reach of home. The central location places residents close to the offices, restaurants, shops, and services that define the city centre, along with the riverfront pathways and public spaces of the surrounding neighbourhood. As specific nearby businesses and institutions are confirmed, they will be reflected here.
Downtown Calgary is one of the most connected parts of the city. Cornerstone's location in the core puts residents within reach of Calgary's CTrain light-rail network, including the free-fare zone along 7 Avenue, as well as frequent transit connections throughout the city centre. Major routes such as Bow Trail and Memorial Drive help connect the downtown to the wider region for those who drive.
Cornerstone is a joint effort between Peoplefirst Developments and Astra Group, builders active in the Alberta market. This project reflects their focus on delivering residential housing in central Calgary. Where a builder's track record is still emerging, prospective buyers are encouraged to review each company's completed work directly.
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Buying in a new development like Cornerstone in Alberta typically begins with registering your interest to receive priority access to pricing and floor-plan information as they are released. Because this building is already complete, available suites may be sold as finished, move-in-ready homes rather than through a pre-construction release.
In a typical pre-construction purchase, buyers sign an agreement and provide deposits staged over time, then take possession once the unit and building are ready. With a completed building like this one, the timeline is shorter, since the home already exists and closing can follow more quickly.
Alberta does not impose a statutory cooling-off period equivalent to those in some other provinces, so it is important to review the purchase agreement carefully and seek independent legal advice before signing. A qualified real estate lawyer can confirm deposit terms, closing details, and your obligations under the contract.
Cornerstone is located at 909 5 Avenue SW in downtown Calgary, Alberta, within the city's central business district.
Cornerstone was developed by Peoplefirst Developments and Astra Group, working together on this downtown Calgary project.
The building offers two- and three-bedroom suites ranging from roughly 653 to 950 square feet. Specific floor plans and availability are confirmed by the builder.
Yes. Construction was completed in 2024, and residents began moving in during the first quarter of 2024.
Pricing has been noted from $1,800 CAD. Current pricing and availability should be confirmed directly with the builder or sales team.
The downtown location provides access to Calgary's CTrain light-rail network and downtown transit, plus major roads like Bow Trail and Memorial Drive for drivers.
You can register your interest to receive updates on availability, pricing, and suite details as they are confirmed by the builder.
Information last updated July 8, 2026. Details are provided by the builder and may change without notice.
First access to pricing, floorplans, and availability — before the public.