Arbour Lake artist rendering (Supplied)

By Haven Thibert

New Calgary Development

Lethbridge-based Triple M drives Alberta’s modular housing push

Nov 5, 2025 | 3:20 PM

ATCO is expanding its modular housing operations with the goal of meeting the demand for cost-competitive, multi-family housing across Alberta and Canada.

The company says it is working with municipalities and developers to address bylaw and red-tape challenges that have reportedly slowed the construction of multi-unit housing.

Its first multi-family project, Viva Homes, is under development in Calgary’s Arbour Lake community on a former ATCO Gas site.

The project is set to include 32 one and three-bedroom townhomes, expected to be ready in early 2026.

The company says planning is underway for additional developments in Calgary and Edmonton, with interest from several Prairie municipalities.

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In Lethbridge, Triple M Housing, an ATCO Structures division operating since 1981, builds modular homes and provides a 20-year warranty.

The company says it is expanding production and recruiting more workers to meet demand.

Triple M currently builds mostly single-family homes, with growing interest from rural and Indigenous communities.

The company is also in discussions with Lethbridge-area developers on potential multi-unit and commercial projects.

ATCO says it has seen strong interest from municipalities and developers in modular housing options that align with the federal Build Canada Homes initiative.