Recognized Federal Heritage Building
Building O-109 (NCO Building)
Essa, Ontario
Also known as Non-commissioned Officers' Quarters, Quartiers des sous-officiers, Non-commissioned Officers' Building

View of the main entrance to Building O-109 (NCO Building), showing the symmetrical plan and horizontally emphasized massing of the building, 1992.
Photo: Department of National Defence / Ministère de la Défense nationale, 1992.
- Built
- 1952
- Recognized
- 1995
- By
- Government of Canada
The register’s text, word for word
Description
Building O-109 (NCO Building), also known as the Non-commissioned Officers’ Building or Quarters, is a large building located on the north side of an open parade-square lawn at Canadian Forces Base Borden. This rectangular structure features a flat roof behind a low parapet wall. The main entrance is set behind six rectangular pillars within a projecting central portico. The designation is confined to the footprint of the building.
Heritage value
Building O-109 (NCO Building) is a Recognized Federal Heritage Building because of its historical associations, and its architectural and environmental value.
Historical Value
Building O-109 (NCO Building) is associated with the massive construction and modernization program undertaken by the Department of National Defence (DND) at the end of the Second World War. More specifically, it is associated with the creation of permanent peacetime armed forces as well as the expansion and transformation of the military services to meet specific national commitments in the early years of the Cold War. This barracks block was an early component of the post-Second World War expansion of the base to accommodate a wide variety of new housing.
Architectural Value
Building O-109 (NCO Building) is a good example of a military building that combines architectural modernism and functionalism in a durable and economical form. Characterized by its symmetrical plan, flat roof and horizontal emphasis, the overall effect of the building is of a modernist hybrid of formalism and Prairie-style accents. It was a project developed by DND staff as an exemplar for the new standards of improved accommodations that followed the Second World War.
Environmental Value
Building O-109 (NCO Building) maintains an unchanged relationship to its site and is compatible with the present character of its military setting at Canadian Forces Base Borden. The building is familiar at the base.
SourceCanadian Forces Base Borden, Ontario, Federal Heritage Building Review Office Building Report (SCR) 94-088; NCO Quarters, Building O-109, Canadian Forces Base Borden, Ontario, Heritage Character Statement, 94-088.
Character‑defining elements
The character-defining elements of Building O-109 (NCO Building) should be respected.
Its modern style and functionalism, for example:
-the symmetrical plan and horizontally emphasized massing of the building as seen in its flat roofscape, parapets and the wrap-around continuity of the projecting belt courses;
-the symmetrical main elevation, with articulated corner accents and the emphasized and elaborated principal frontage, with its projecting portico and recessed entrance.
The manner in which Building O-109 (NCO Building) maintains an unchanged relationship to its site, is compatible with its military setting and is a familiar building at Canadian Forces Base Borden, as evidenced by:
-its ongoing relationship to its site on the north frontage of an open parade-square lawn;
-its overall design, scale and materials, which maintain a relationship to the matching building T-114, are compatible with its grouping of similar buildings at the base;
-its visibility vis-à-vis its scale and location which makes it a familiar building at the base.
End of the register’s text
Location
Essa, Ontario, Canada
44.17299° N, 79.53404° W
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Nearby
All 9 places in EssaSimilar places
Places whose register descriptions are closest to this one.
Building O-102Canadian Forces Base Borden / Base des forces canadiennes Borden, Ontario
Building E-108Essa, Ontario
Junior Ranks Quarters (Building T-114)Essa, Ontario
Croil Hall (Building A142)Canadian Forces Base Borden, Ontario
Junior Ranks Quarters (Building T-115)Essa, Ontario
Building B-39Kingston, Ontario
From the Canadian Register of Historic Places, as last updated on December 12, 2025. The register’s text is shown word for word.