Art Gallery of Ontario (AGO) Dani Reiss Modern and Contemporary Gallery

Toronto, ON
20250211 Ago Expansion Toronto Copy Resize
Keywords: Carbon, Cultural, Curtainwall, Electrification, Enclosure, Expansion, Gallery, Glazing, Museum, Sustainability, Terracotta
  • Size 40,000-sf, 5-storeys
  • Completion 2027
  • Services Provided Building Enclosure Consulting, Zero Carbon Design, Embodied Carbon Consulting
  • Market Sector Cultural, Civic + Government
  • Architect Diamond Schmitt Architects (RDH Client)
  • Award Canadian Architect Awards of Excellence, 2025
The Art Gallery of Ontario’s (AGO) new Dani Reiss Modern and Contemporary Gallery is a 40,000 sf, all-electric expansion targeting Zero Carbon Building Design Standard v3 certification, reflecting AGO’s commitment to climate action and low carbon cultural buildings. As one of Canada’s first all-electric museum additions, the project eliminates combustion-based heating or cooling systems while accommodating the strict environmental controls required for art preservation.

Engaged by Diamond Schmitt Architects, RDH provides building enclosure consulting and zero carbon design support with a focus on high-performance enclosure detailing. RDH collaborates with the design team to integrate thermal control, air barrier continuity, and glazing performance into the gallery’s form.

The enclosure features curved terracotta panels with discreet parapet and through-wall flashings, and curtain wall bay windows with structurally glazed corners for a streamlined appearance. The addition wraps the existing building, tying into its precast concrete cladding and roof assemblies and connecting to the Gehry-designed titanium-clad wing through an elevated pedestrian bridge. Expansion joints are designed to support control layer continuity, constructability, and long-term performance.

RDH’s design-phase work with Diamond Schmitt Architects targets a 32% modeled reduction in energy use, exceeding the Zero Carbon Building Design Standard v3 minimum target of a 10% reduction. A steel structure incorporating electric arc furnace steel and the selection of terracotta cladding contribute to the lowered embodied carbon.

This project advances low-carbon design in a building type where ventilation, humidity control, and preservation drive high energy demand. RDH’s enclosure and zero carbon design work support a solution that protects the artwork and elevates the visitor experience. The project received a 2025 Canadian Architect Award of Excellence, recognition of its all-electric design and contribution to low-carbon cultural buildings in Canada.

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