This new building at 7 Clarence Street, in the heart of the historic Byward Market district in Ottawa, was completed in 2017 for the National Capital Commission (NCC). It replaced a historic building with a major structural failure in the exterior stone walls. The decision was made to replace the failing structure with a contemporary design that would be similar in footprint and volume, as well as respecting the character and spirit of the original building and the surrounding area.

Bytown Began as a lumber town

This contemporary building has several major features constructed out of wood which is an acknowledgement to Ottawa’s early history as a major lumber town, and the traditional use of wood in buildings, especially as found in the historic Byward Market. The trade in squared timber and sawed lumber led to growth and prosperity to communities, in particularly the city of Bytown (now known as Ottawa).

Contemporary wood designed with a historical twist!

The contemporary design uses wood in a number of ways:

A Glulam (glued laminated timber) post and beam frame was selected for the primary structure, that recalls the mass-timber framing of historic buildings in the Market area.
The exterior wall structure uses wood structural insulated panels infilled into the structural frame. These were factory-assembled for higher quality control, less installation time and exposure to weather. The panel framing was precisely coordinated to support the cladding system.
The main interior feature stair between ground and second floor uses Glulam treads and landings inset with a limestone tread. This provides a robust and attractive natural character complemented by the glass and stainless steel guards, and a wood handrail.
The high-performance windows including the curtain wall system used in the main windows facing the street and courtyard were constructed using wood mullions, frame, and sashes. The wood fits the overall character of the interior while being attractive and thermally efficient.

Contemporary design living within its heritage community

The building design was rounded out with a range of energy efficiency and sustainable design features that reduce energy consumption, enhance durability, aid in occupant comfort and health, use materials with reduced resource impacts, and facilitate repair and end of life replacement. This modern building is designed for a lifespan equal to its historic neighbours.