The NCC will lease a portion of the future Flats District to be developed as part of the planned LeBreton Flats community.

Our vision for this district is a residential community with diverse housing options, local amenities, and a focus on sustainability.

The latest on the project

During the NCC’s January 2024 board meeting, we announced that we had agreed to an offer to lease with Canadian developers Avenue 31 Capital Inc. and Cogir for the development of a portion of the Flats District at LeBreton Flats.

Following the conclusion of a lease, Avenue 31 Capital Inc. and Cogir would develop four parcels of land (1.63 hectares) within the Flats District to create a new sustainable and inclusive residential-focused community.

This next phase of the Building LeBreton project will deliver more than 900 much-needed homes, including affordable and three-bedroom units, in the core of the national capital.

About the project

On June 29, 2022, the NCC launched a request for offers (RFO) to lease for four parcels of land (1.63 hectares) within the future Flats District at LeBreton Flats. Proposals were accepted until October 5, 2022.


Following an evaluation process, the NCC has agreed to an offer to lease with developers Avenue 31 Capital Inc. and Cogir for the development of a portion of the Flats District at LeBreton Flats.

Once completed, this project will deliver the following public benefits, outlined in the LeBreton Flats Master Concept Plan (MCP):

  • At least 900 new homes, including affordable, that will contribute to the overall target of at least 25% affordable housing across all of LeBreton Flats;
  • Net-zero-carbon buildings that will connect to a future district energy system;
  • Pedestrian-friendly local streets with transit and active transportation as the primary and preferred modes of travel;
  • A community benefits plan to generate public benefits;
  • A plan to generate benefits for the Algonquin Nation.

Key features of the sites

The Flats Phase development site is located in the heart of the national capital, within the future Flats District of the LeBreton Flats Master Concept Plan (MCP).

Key statistics for the Flats Phase:

  • Comprised of parcels F1, F2, F3 and F8 in the MCP
  • Total development area: 1.63 hectares (4.02 acres)
  • Estimated maximum yield: 78,400 square metres (844,000 square feet)
  • Potential for more than 900 residential units

The Flats Phase is located:

  • Along Wellington Street across from the Canadian War Museum and LeBreton Flats Park festival grounds
  • Within a 10-minute walk from two light rail stations (Pimisi and Bayview) on the O-Train Confederation and Trillium lines
  • Steps from Ādisōke, the future Ottawa Public Library and Library and Archives Canada joint facility, which is a $306 million central library opening in 2026
  • On the edge of Ottawa’s downtown, only 2 km from Parliament Hill
  • Close to the Ottawa River waterfront and scenic pathways

Process and timeline

  • The NCC launched the RFO on June 29, 2022.
  • Proponents had until October 5, 2022, to submit proposals.
  • Submissions to the RFO were evaluated and negotiations took place with the preferred proponent.
  • An agreement was reached with preferred proponents Avenue 31 Capital Inc. and Cogir in January 2024.
  • Throughout 2024, negotiation of lease terms and advancement of design work will continue. Design for the Flats Phase development will be subject to the federal land use, design and transaction approval process.
  • Finalization of the lease is targeted for the end of 2024.
  • Municipal approval of the NCC’s subdivision plan for LeBreton Flats is targeted for the end of 2025.
  • Following subdivision approval, Avenue 31 Capital Inc. and Cogir can seek municipal approvals and proceed with the Flats Phase development.

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