Calgary Annexation: City's controversial plan to reshape the deep southwest

[CALGARY, AB] — Calgary's deep southwest is back in the crosshairs. The city is moving to absorb nearly 170 hectares of Foothills County land — a stretch of rolling terrain near the Sirocco Golf Club — and if you live anywhere south of Glenmore, this one's worth paying attention to.

The Second Attempt at Sirocco Country

This isn't a new idea. Calgary tried this before in 2023, then quietly shelved it. On July 29, 2025, Council voted 8-6 to revive the annexation process for approximately 415 acres from Foothills County — a razor-thin margin for a decision that could reshape the southwest edge of the city for a generation. The motion came from Councillor Dan McLean (Ward 13), and Foothills County has already signaled it's open to talking. But "open to talking" and "done deal" are different countries. Provincial approval is still required, and the full negotiation-to-approval clock could run two years from here.

3,400 Homes. Two Years. One Tight Vote.

The pitch from City Hall is straightforward: Calgary is growing fast, land supply is the lever, and this parcel is projected to hold up to 3,400 homes across a mix of housing types. The Municipal Development Plan and the Developed Areas Guidebook provide the policy spine — annexation is how the city keeps ahead of demand instead of scrambling behind it. That logic also drove December 2025's much larger move: Council approved the annexation of roughly 4,600 hectares from Rocky View County to the north and east. Compared to that, 170 hectares in the southwest looks like a footnote. It isn't.

The southwest has a distinct character — established, affluent, infrastructure-mature. Residents out there aren't opposed to growth in principle, but they've watched enough development promises morph into traffic nightmares and half-finished amenities to be skeptical of how neatly the "road upgrades" and "housing diversity" talking points actually land on the ground. The 8-6 vote suggests Council isn't uniformly convinced either.

The $750K Nobody Wanted to Talk About

Here's where it gets instructive. During December 2025 budget deliberations, someone moved to cut the $750,000 in one-time operating funding earmarked specifically for this Foothills Annexation. That amendment failed — the money stayed in. But the fact that the move was made at all is a tell. There is a faction at the council table that isn't sold, and they took a budget shot at the process before it gained momentum. That shot missed, but it won't be the last one.

The stakes here aren't abstract. The city is betting that securing land now — before the provincial process grinds through its two-year review — keeps Calgary competitive on housing supply and price. Critics would argue that annexing greenfield land on the urban fringe accelerates sprawl, stretches infrastructure budgets thin, and papers over the harder work of densifying what's already inside city limits.

Who Wins, Who Watches the Clock

Landowners and developers adjacent to the Sirocco area are already doing math. The moment annexation is formalized, the value calculus on those parcels shifts hard. For current southwest residents, the more immediate question is sequencing: Will the roads and services come before the rooftops, or will 3,400 new homes arrive while everyone queues on 37th Street SW waiting for infrastructure that's perpetually "coming soon"?

Council holds the authority. The province holds the pen. And somewhere between a $750,000 budget skirmish and a two-year provincial review, Calgary's deep southwest quietly becomes the city's next frontier — whether the neighbourhood wants the title or not.