At the moment, I don’t feel I know enough about this developing issue to take a position, so I plan on monitoring the situation and perhaps look at the bigger picture.
Four years ago, Ottawa city council voted to expand the urban boundary into lands southeast of the city to create a massive new suburban community called Tewin. The project, a partnership between the Algonquins of Ontario (AOO) and Taggart Group, envisions housing for up to 45,000 people on 445 hectares of land. This expansion was one of the most controversial planning decisions of the last decade, both for its symbolic weight and its long-term implications. Today, councillor Theresa Kavanagh has re-opened the debate, proposing that Tewin be stripped from Ottawa’s Official Plan. Her efforts highlight the difficult choices cities face between growth, climate goals, and Indigenous reconciliation.
The Promise of Tewin
Supporters of Tewin present it as a once-in-a-generation opportunity. For the Algonquins of Ontario, the project represents an unprecedented role in shaping Ottawa’s future. After centuries of dispossession, Tewin offers not only revenue streams and jobs but also visibility in the city’s urban fabric. This symbolic dimension, land not merely ceded or lost, but built upon in partnership, is difficult to dismiss.

Developers and some councillors also argue that Ottawa must accommodate population growth. With Canada’s immigration targets rising, pressure on housing supply is intense. Tewin promises tens of thousands of new homes, potentially designed with modern sustainability standards. Proponents emphasize that large master-planned communities can integrate parks, schools, and infrastructure in ways that piecemeal infill cannot. In this vision, Tewin is not sprawl, but a carefully designed city-within-a-city.
The Cost of Sprawl
Yet the critiques are no less powerful. City staff initially ranked the Tewin lands poorly during their 2020 evaluations, citing soil unsuitability, distance from infrastructure, and limited transit access. Servicing the site: extending water, sewers, and roads will cost nearly $600 million, much of it beyond the city’s 2046 planning horizon. These are funds that could otherwise reinforce existing communities, transit networks, and climate-resilient infrastructure.
Urban sprawl carries environmental and social costs. Tewin sits far from rail lines and job centres, ensuring that most residents will be dependent on cars. This contradicts Ottawa’s stated climate action commitments, which emphasize compact growth and reduced vehicle emissions. Critics also note that adding a massive suburb undermines efforts to intensify existing neighbourhoods, where transit and services are already in place.
Indigenous Voices, Indigenous Divisions
The Indigenous dimension of Tewin complicates the debate. On the one hand, the Algonquins of Ontario have secured a rare position as development partners, advancing reconciliation through economic participation. On the other hand, not all Algonquin communities recognize AOO’s legitimacy, and some argue that consultation has been narrow and exclusionary. The project thus embodies both progress and tension in the city’s relationship with Indigenous peoples. To reject Tewin outright risks appearing to dismiss Indigenous economic aspirations; to proceed with it risks deepening divisions and ignoring long-standing calls for more inclusive engagement.
A City at the Crossroads
Councillor Kavanagh’s push to remove Tewin from the Official Plan is more than a single motion. It reopens a philosophical question: what kind of city does Ottawa wish to become? If it seeks to embody climate leadership, resilient infrastructure, and walkable communities, Tewin appears to be a step backward. If it seeks to honour Indigenous partnership and ensure abundant housing supply, the project has undeniable appeal.
Ultimately, Tewin forces Ottawa to confront a contradiction at the heart of Canadian urbanism. We are a country that has promised climate action, but remains tethered to car-dependent suburbs. We are a nation that aspires to reconciliation, but often struggles to reconcile competing Indigenous voices. To move forward, Ottawa must do more than weigh costs and benefits; it must articulate a vision of growth that is both just and sustainable.
In this sense, Tewin is not merely a development proposal. It is a mirror held up to the city itself, reflecting both its aspirations and its unfinished work.
Sources:
• CTV News Ottawa. “Tewin development project passes latest hurdle but some say it still doesn’t belong.” August 2024. Link
• Ontario Construction News. “Ottawa councillor sparks renewed debate over controversial Tewin development.” April 2025. Link
• CTV News Ottawa. “Councillor withdraws motion to remove 15,000-home development from Ottawa’s Official Plan until after byelection.” April 2025. Link
• Horizon Ottawa. “Stop the Tewin Development.” Accessed October 2025. Link

