This site uses JavaScript. Please enable JavaScript in your Browser and reload the page to view the full site.

Château Laurier addition

Project Status: 

Project Update – January 2021

Larco Investments has proposed a new design for the rear addition to the Château Laurier hotel. Larco Investments owns the hotel. They have retained the architecture firm of Architects Alliance to design the addition.

The new design is the result of settlement reached between the owner and Heritage Ottawa following legal challenges of the earlier proposal.

The proposed addition requires heritage and site plan approvals from the City of Ottawa, federal approvals from the National Capital Commission and a decision from the Local Planning Appeal Tribunal before construction can occur.

Proposal Details

Larco Investments proposes to build an 11,846 square metre, 159-room addition in a contemporary style at the rear of the existing Château Laurier. The development proposal retains the Château Laurier in its entirety and will be built on the site of the former parking garage. The addition will connect to limited areas on the Château Laurier’s east and west wings.

The development proposal also includes a landscaped courtyard between the Château Laurier and the proposed addition, a redesigned forecourt along Mackenzie Avenue, a walkway and ramp along the north side of the addition, and a new stairway between the courtyard and the public terrace on the west side of the Rideau Canal.

You may view the plans and studies for the site plan control application on Development Application Search

For more information on the project, please visit Larco’s project website.


The City received a site plan control application for an addition to the rear of the Château Laurier in December 2016. Planning staff requested comments from the public and interest groups through three formal circulations (winter 2017, winter 2018 and winter 2019).

On January 31, 2018, City Council approved an application to demolish the garage of the Château Laurier as the garage was structurally unsound. The garage has been replaced with a temporary surface parking lot enclosed within the original walls.

City Council approved the application to alter the heritage building on June 27, 2018 and Planning Committee approved the site plan application on June 13, 2019. On July 10 and 11, 2019, City Council reviewed and upheld the heritage permit approval.

The minor variance decision by the Committee of Adjustment was appealed to the Local Planning Appeal Tribunal by the owners, Larco Investments, and Heritage Ottawa in October 2019. Since then, the appellants have worked together on design changes to settle the appeal. The latest addition design reflects these discussions.


Tell us what you think of the revised proposal.

You may view all of the plans, studies and renderings that the applicants have provided to the City of Ottawa as part of the site plan control application on Development Application Search website.

You can participate in the consultation process in several ways:

  • Send an email to
  • Contact the file lead, Allison Hamlin, at 613-580-2424, extension 25477
  • Submit written comments to or speak to the relevant Built Heritage Sub-Committee or Planning Committee meetings

Accessibility is an important consideration for the City of Ottawa. If you require special accommodation, please email or call Allison Hamlin at 613-580-2424, extension 25477.

Next Steps

  1. Built Heritage Sub-Committee to consider staff report for the heritage permit (February 5 2021).
  2. Planning Committee to consider staff reports for both the heritage permit and site plan control application (February 5 2021).
  3. City Council to consider staff report for the heritage permit (February 24, 2021)
  4. The applicant will seek Level 3 and Level 2 National Capital Commission approvals for matters related to federal lands (target date April 2021.
  5. The Local Planning Appeals Tribunal will make a decision on the minor variance appeals.
  6. If all previous steps are approved, Larco will obtain a building permit and construct the addition.

Residents may provide feedback on the development proposal until the City approves the heritage permit and the Site Plan Control application. City staff will notify individuals on the notification list of all meeting dates, project updates and decisions by email. Please email to be added to the notification list.