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Climate Action Case Studies

Based on estimates from various sources, approximately one-third of Canada’s greenhouse emissions come from the built environments where people live, work, and play. Within urban areas, that number is much higher.

As buildings are key contributors to greenhouse gas emissions, the creation of a better, more efficient built environment, both through new construction and renovation work, must form a significant part of the solution on the path to achieving emissions reduction targets. The case studies included on this page are a collection of work submitted by OAA members, demonstrating how the architecture profession can build better and advance climate action.

The OAA case studies are intended for broad educational or informational purposes , showcasing models in climate performance. These case studies are illustrative of the possibilities for projects, but any reliance on material posted in the case study is at your own risk.

Do you have any projects that are exemplary models in climate performance or showcase how the architecture profession can build better? If so, please submit a case study for consideration using the button below. If you have any questions or comments, email oaamail@oaa.on.ca.



The OAA does not represent, warrant, or guarantee the accuracy or completeness of this information, and the language or opinions stated do not necessarily represent those of the Association or its governing Council. To read the full terms for use of this website, click here.

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Exterior image of Virgin Vineyard house

Virgin Vineyard House

A holistic consideration of the building was taken from initial ideation through final execution. LAMAS began with site analysis and a study of the history, vernacular, and architectural approaches local to the area. These studies were integral to the concept, informing the design and helping guide decisions. The interior design was also done by LAMAS to ensure a cohesive concept from siting and architectural form, to collaboration with local craftspeople, to addressing interior fixtures and finishes. This comprehensive approach ensured a cohesive living space that reflects the unique identity of both the client and the surroundings.

Building Orientation & Layout

Situated between an old farm road and a hillside vineyard, the Virgin Vineyard house derives its name from the ruins of a former farm on the site. The client desired a residence that would offer views of the surrounding lake while minimizing disruption to the vineyard. Designed for three generations, the layout features bedrooms at both ends and gathering spaces in the middle. A twist in the plan allows each room to feel like a private shed with a unique volume, all under one roof. The angled interior walls create architectural interest and foster semi-private recesses beneath the expansive roof, providing a welcoming environment for family visits.

Exterior image of Virgin vineyard house

Energy

Wood construction was chosen to minimize the embodied energy and carbon footprint while ensuring a well-insulated envelope. The deep roof joists contributed to high R-values in the assembly, and the architecture firm prioritized a connection to the location through materials and craftsmanship to better reflect the traditional forms of Quebec’s architecture. Although unique, the house seamlessly integrates into its hillside setting as a farmhouse. The design, along with passive strategies and renewable energy sources like a ground source water-to-water heat pump, achieved an Energy Use Intensity (EUI) of 109 kWh/m²/yr.

Interior view of house showing large windows and wood joints

Materials & Construction

The Quebec home features materials inspired by the local landscape, including fieldstone walls that separate the home from the road and shelter living spaces. The design emphasizes the harmony between stone and wood, reflecting la belle province’s agricultural architecture. Sustainable practices are central, with a high-performance envelope and geothermal heating and cooling. Local lumber was used to minimize embodied energy and carbon.

collage of images of the interior of the house showing the wood finishes in the kitchen, rooms and corridor

Life & Adaptability

The home was primarily about preserving the ecology of the land and enhancing the site. Its formal vernacular elements—deep eaves, thick walls, and relatively opaque north, east and west facades—represent a sustainability approach that includes high-performance envelope design and geothermal heating/cooling. The heating system combines forced air and hydronic flooring for more efficiency, and the home design’s deep eaves and cross ventilation eliminates the need for air conditioning in summer. Geothermal is advantageous in Quebec where carbon-free electricity powers the heat pumps to a radiant floor. Wood construction kept the embodied energy and carbon down while allowing for a well-insulated envelope (e.g. deep joists with high R-values). The lumber, cladding, stone, fixtures, finishes and high-performance wood curtain wall triple glazing were all local to Quebec.

collage of exterior of house and diagram showing the the detail of the brick work

Community

The owner is currently working with a local horticulturalist to plant indigenous flora to support the natural habitat. Informed by the history and vernacular architecture of the area, this home preserves the ecology of the land while enhancing the site.

Exterior collage showing the bedroom and garden space

Project Team

Architecture and Design Team
Weihan Vivian Lee
James Macgillivray
Andrea Rodriguez Fos
Cassandra Rota
Phil Carr-Harris
Kara Verbeek

Structural

Eric St-George Structures et Civile

Mechanical
Génécor Experts-Conseils Inc.

Electrical

Environment Électronique

Contractor

Construction Yves Lessard

Interiors

LAMAS Architecture Ltd.

Millworker

Ebénisterie Renova

Masonry

Maçonnerie Desrosiers de l’estrie

Landscape
Oscar Hache

Photography
Félix Michaud



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