A genuinely major milestone in Toronto's Port Lands transformation just landed, and it's happening right next to South Riverdale. Here's what's new and what it means if you own — or are considering buying — at Riverside Square.
What Just Happened
On July 24, 2026, additional waterfront parkland opened on Ookwemin Minising, the new island created by the Port Lands Flood Protection project — a milestone marking one of North America's most ambitious waterfront transformations reaching a genuine completion point. The project protects 290 hectares of Toronto's central eastern waterfront from flooding and unlocks the island for future rezoning and mixed-use neighbourhood development.
What Ookwemin Minising Actually Is
The project channelled the Don River through a newly constructed river valley to meet the lake at a naturalized mouth, creating an entirely new island in the process. Biidaasige Park, the public green space on the island, now spans more than 50 acres, with an additional 10 acres set to open later in 2026 — home to over 5,000 trees, 77,000 shrubs, and roughly two million herbaceous plants, along with trails, playgrounds, picnic areas, off-leash dog parks, and a landing area for non-motorized watercraft.
Why This Matters Beyond Just "A New Park"
This isn't simply a park opening — it's the unlocking of a major new development zone directly adjacent to South Riverdale. At full build-out, Ookwemin Minising is projected to house more than 15,000 residents and nearly 3,000 jobs, with an additional $975 million in tri-government funding announced to accelerate housing and destination development on the island and along the waterfront at Quayside.
What This Means If You Own at Riverside Square
This directly supports the neighbourhood momentum we've already seen reflected in South Riverdale's recent condo value gains. A newly unlocked, publicly-funded development zone with this much investment behind it tends to support surrounding property values over the medium and long term — not as an overnight effect, but as a structural tailwind for the broader area.
More amenity, not more competing supply — yet. The immediate impact is a genuine lifestyle upgrade: significant new parkland within easy reach, well before the housing development phase actually adds competing inventory to the immediate resale market.
What This Means If You're Considering Buying
Buying into a neighbourhood just as a major adjacent development zone unlocks is often exactly the kind of timing that rewards patient, longer-term buyers — you're getting in before the surrounding transformation is fully priced in, similar to how we've discussed the Ontario Line's Leslieville Station construction playing out on a similar multi-year timeline.
What to Watch Going Forward
The remaining 10 acres of Biidaasige Park, expected to open later in 2026
Housing development announcements on Ookwemin Minising itself, as the tri-government funding translates into actual project approvals
Continued Quayside waterfront development, which is advancing alongside this project
The Bottom Line
The Port Lands Flood Protection project reaching this milestone is a genuinely significant, well-funded, long-term positive for South Riverdale and the broader area around Riverside Square — new public parkland now, with a major development zone unlocking for the years ahead.
Want to know how this and other neighbourhood developments factor into current Riverside Square pricing? Reach out to our team for a current market conversation.