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41CE - Retaining Heritage Buildings in Four Dimensions

24 May 2018 4:00 PM - 5:30 PM

1.5 ConEd Learning Hours

Retaining buildings in three dimensions is a conservation goal; retaining buildings in four dimensions means preserving building form, respecting heritage value and enabling outstanding future performance.

Heritage conservation policies affect architects, developers and building owners who are adding to existing properties, or building new within a heritage context. Where development pressures are greatest, partial retention of buildings has sometimes been accepted by heritage authorities and planners as a substitute for whole building conservation, even though municipal regulation and policy do not recommend this approach.

There are multiple practical reasons for retention of whole buildings and their interiors, and good ways to imagine building additions to existing buildings that will achieve savings of time and money, and be acceptable within the heritage conservation, planning and community process. 

Three leaders in the architectural, structural, building envelope, sustainability and energy fields provide an approach to building retrofit and additions; their approach is geared to the 21st century models of sustainability and interdisciplinary practice. They discuss how architects and engineers can work together as a team to meet heritage conservation, intensification and technical goals through efficiencies of approach. They provide a provocative and practical approach to maintaining the landmarks of our towns and cities.

Learning Objectives

  1. Learn about the multiple practical benefits of retaining whole buildings rather than only the façades of existing buildings.
  2. Understand the integrated framework of tools for building adaptation, including architectural, structural, building envelope and energy modelling tools.
  3. Hear memorable case studies and examples of what has worked.
  4. Learn about the latest strategies for integrated conservation within a challenging planning environment.


Jill Taylor, OAA, FRAIC, NSAA, AANB, LEED AP, CAHP, Sarah Gray, P.Eng., CAHP, and Will Teron, P.Eng., CAHP

Jill Taylor co-founded Taylor Hazell Architects in 1992. Her work is based on over 30 years of experience in the conservation and building retrofit field, including in heritage and environmental conservation, and in planning and policy development. She has been awarded a Fellowship in the Royal Architectural Institute of Canada (RAIC), is a past chair of the Conservation Review Board of Ontario and is past-president of the Canadian Association of Heritage Professionals. Jill is a LEED-certified professional with licenses in Ontario, New Brunswick, and Nova Scotia.

Sarah Gray has been based in Toronto for nearly 15 years, and has degrees in civil engineering and historic preservation. Her work is focused on heritage building rehabilitation, existing building condition assessment and renewal along with building enclosure consulting for new construction. She serves as a peer reviewer for the Association for Preservation Technology’s APT Bulletin and has taught building science courses at the University of Toronto. Sarah was awarded a 2010 Craftsman Award from the Canadian Association of Heritage Professionals (CAHP) for work at the Confederation Life Building in Toronto.

With over 30 years of experience, Will Teron has been involved in assessment, analysis and restoration of many landmarks. Will serves as conservation (structural) engineer for evaluation, restoration, renovation and adaptive reuse of structures across industrial, commercial, institutional, residential and faith-based sectors. Active in the restoration and conservation professional community, Will is an Expert Member of the International Scientific Committee on Analysis and Restoration of Structures of Architectural Heritage (ISCARSAH), a Scientific Committee of ICOMOS International. In 2013, Will was named to the Professional Engineers Ontario (PEO) Professional Standards Committee, tasked with developing provincial standards and guidelines for the structural condition assessment.

This session is sponsored by Mason's Masonry Supply Ltd.