Notre Dame Cathedral Basilica Preservation & Restoration

Ottawa, Ontario

Archdiocese of Ottawa

Notre-Dame Cathedral Basilica was built in several phases between 1841 and 1897. Being the oldest surviving church in Ottawa, the Cathedral is a prominent landmark in the city and has great architectural, cultural and religious significance. It is recognized as a National Historic Site.

The project consisted of the complete restoration of Notre-Dame Cathedral Basilica according to internationally recognized heritage standards. The project also included an adaptive reuse of the lower parish hall and crypt area into a new multi-purpose room and professional kitchen. Prime heritage character defining areas were designated as part of an investigation reporting phase. The extensive interior and exterior restoration of the Cathedral included metalwork, stained glass, masonry, plaster, and artwork. Mechanical, electrical, and life safety systems were completely updated. The building was upgraded to meet current accessibility and building code standards.

Edward J Cuhaci and Associates Architects Inc. was also subsequently retained to rehabilitate the Sacristy Building by converting dormitory rooms into offices and upgrading the exit requirements. Part of the scope of work included partial demolition of a 1970’s addition and the restoration of the masonry, stain glass and interior plaster and faux finishes.

The Firm carried out comprehensive Master Planning, including the schematic design of a new day chapel. We carried out a comprehensive assessment of the current condition of the building and its interior decoration, and then recommended priorities and budgets for restorative purposes. As part of our mandate, we worked with the Cathedral Committee. With respect to the liturgical renewal, we generated proposals for the rearrangement of the sanctuary.

This comprehensive report consisted of separate sub-reports and analysis prepared by specialized consultants, who worked under our direction. These individual reports include detailed analysis and budgets that cover all aspects of the building fabric, structure, finishes, designated substances, electrical and mechanical systems. The report also included as-found architectural, mechanical, electrical and survey drawings, as well as drawings showing building code deficiencies, proposed alterations, and reflected ceiling plans. In addition, our report included a detailed work methodology that addressed the major activities required in the restoration process, and a room-by-room assessment of the building interior and four exterior facades. To improve the comfort in and the life safety systems of the building, we also recommended alterations.

Objective 1: Users’ Operational Requirements

We established the Project’s priorities and defined the operational requirements by consulting with various user groups, and holding discussions at public meetings.

• New ramps and elevating devices were added to provide handicapped access, without damaging the existing historical character of the public spaces.

• New lighting fixtures, dimmers and audio systems were added in the sanctuary and basement where a multitude of performances and events take place.