Pick your market

mcCallumSather | Architecture | Interiors | Engineering

mcCallumSather | Architecture | Interiors | Engineering

Be the first to write a review
Is This Your Listing? Claim it here!
Environmental Sustainability Leader
Environmental Sustainability Leader
286 SANFORD AVE N., 2nd Floor, Hamilton, Ontario L8L 6A1, Canada

mcCallumSather | Architecture | Interiors | Engineering

Environmental Sustainability Leader
Environmental Sustainability Leader
286 SANFORD AVE N., 2nd Floor, Hamilton, Ontario L8L 6A1, Canada


Focused on achieving our clients’ goals through design excellence and sustainability. Architectural, engineering, interiors, heritage, LEED and PM services.

Our headquarters in Hamilton, Ontario is located in the storied Westinghouse HQ, with our second office located in Kincardine, Ontario. Founded in Hamilton, our team represents diverse, creative, tenacious and innovative thinkers, mirroring the energy which surrounds us in this dynamic community.

We bring this spirit to a wide range of public and private sector clients across Southern Ontario and beyond. Renovation to new construction, small community initiatives to multi-million dollar, one-of-a-kind projects, we remain relentlessly focused on achieving our clients’ goals, guided by a commitment to design excellence and sustainable solutions. Where we've come from: In 1996, Joanne McCallum and Greg Sather founded mcCallumSather. Now, with over twenty years of experience, our firm has achieved an impressive record of significant industry firsts.

We designed and built the first Net Carbon building in Ontario and the largest Net Zero facility in Canada, The Joyce Centre for Partnership & Innovation on the Mohawk College Campus.

We completed the first LEED Gold Certified building under the CaGBC, the Region of Waterloo EMS Headquarters and built the first facility of its kind in the world, with the largest virtual lab environment, designed to study human communication at McMaster Institute for Music and the Mind. We recognize the strength of an integrated team. It led to our decision to offer in-house mechanical engineering and interior design services. We did this to facilitate comprehensive service on small renovation projects and improve coordination and system integration on larger projects. LEED Facilitation, Laboratory Design and Heritage Consultation strengthen our service and help us deliver specialized, tailored solutions.


Led by the mission of enabling our clients, mcCallumSather’s architectural team seeks to achieve a balance between sustainability, purpose and aesthetics in every design decision. We bring together the best design intelligence for a project, provide exceptional leadership and foster a culture of continuous curiosity. Our integrated approach results in an ability to consistently deliver projects which challenge the status quo. These transformative buildings leave an indelible mark on the communities and institutions they serve.


Feasibility Studies Master Planning and Facility Programming Design Concepts and Design Development LEED/ Net Zero Design Facilitation BIM Modelling Consultant/Team Coordination Project Management Contract Documentation and Specifications Tender and Field Review Services Contract Administration Zoning Reviews and Applications Community Consultation Authorities Liaison Post Occupancy Evaluations Facility Audits Integrated Project Delivery (IPD) Visualization and Virtual Reality Walkthroughs Explore our architectural portfolio and learn more about how it fits within our firm’s integrated design services.


Using space, light, colour and materiality, mcCallumSather’s Interior Design team understand how to couple form and function with aspirational design. These thoughtful designs connect with our clients’ mission, from promoting productivity, inspiring innovation, providing comfort or creating a meaningful brand experience. We understand the importance of sustainable, durable and intelligent design solutions, leading to a broad range of projects which exemplify the connection between the science of design and the aesthetics of the space.


Facility Programming Design Concepts Move Coordination Accessibility Space Planning Colour and Material Studies Furnishing and Selection Equipment Inventories Facilities Database Master Planning Contract Documentation and Specification Preparation Tender and Field Review Services Change Management Art Selection Explore our interior design portfolio and learn more about how it fits within our firm’s integrated design services.


Every design decision made by mcCallumSather’s mechanical engineering team is driven by sustainability, performance and integration. Working fully in BIM, we develop responsive mechanical systems that are both sensitive to the environment and cost-effective. We have the ability to design systems that achieve Net Zero Carbon and Net Zero Energy goals. Our team thrives in a solutions-based and collaborative design environment where we consistently challenge the status quo with innovative solutions and tailored design. Our projects, from specialized laboratories to innovative workplace design, represent design at the forefront of our profession.


HVAC Systems Design Plumbing Systems Design Fire Protection Systems Design Energy Modelling Energy Audit/Assessment Energy Retrofits Contract Documentation and Specification Preparation Contract Administration Field Review Services LEED Facilitation Explore our mechanical engineering portfolio and learn more about how it fits within our firm’s integrated design services.


With a team of award-winning heritage professionals, accredited by the Canadian Association of Heritage Professionals, mcCallumSather’s team is passionate about the stories historic buildings have to tell and their cultural significance to each community. We are skilled in diligent research essential to preserve and protect the distinctive characteristics of these critical cultural assets. This is coupled with the inventiveness required to draw meaningful connections between the past and our modern life, allowing buildings to remain relevant well into the future through sustainable restoration or creative adaptive re-use. By actively collaborating with Municipal Leadership, heritage planners, the community and property owners, we have seen some of the most exciting design solutions emerge.

HERITAGE CONSULTANT SERVICES Heritage Conservation Heritage Preservation Adaptive Re-Use Heritage Impact Assessments (HIA) Historic Documentation / Salvage Plans Municipal Relations Public Relations Grant Administration Explore our heritage portfolio and learn more about how it fits within our firm’s integrated design services.


Sustainable, resilient design is more than a service, it is how we think. For over 20 years, sustainability has been at the core of each design decision and it continues to shape every project we undertake. To achieve exceptional results, data is essential. Our team has pioneered the use of energy budgeting, a process which establishes a project’s estimated energy use at the outset of a project. This data-driven approach enables our team to achieve measurable GHG reductions, net zero certified buildings and LEED certified projects, by allowing our energy targets to drive the design decisions. This is coupled with our LEED Facilitation Services. As one of the first architectural firms to offer Facilitation, we continue to advise a broad range of clients, enabling them to create meaningful change they can proudly say has been verified by the Canadian Green Building Council.


Energy Budgeting LEED /Net Zero Facilitation Energy Modelling Pre-Design Workshop Facilitation Registering and developing applicable applications Building System Review Develop LEED /Net Zero Criteria Consultant Coordination Project Management Construction Administration Change Management Explore our LEED Facilitation & Net Zero portfolio and learn more about how it fits within our firm’s integrated design services.


No one person has the authority to make good design decisions. We recognize that great ideas come from all members of our staff, our clients, consultants, contractors and the broader community. As an integrated firm, we come to each project with a deep respect for the value of the voices around the table.

INTEGRATED DESIGN PROCESS For over 20 years we have adopted an Integrated Design Process, replacing a traditional linear approach to design. It leads to more thoughtful, cost-effective and sustainable solutions so critical to our clients’ success. Our recent involvement with Integrated Project Delivery (IPD) teams push this even further, building on our collaborative experience and understanding of LEAN processes and Big Room design. From our office design to our company culture, an integrated, inclusive approach is at the core of our success and of the projects we design. We are constantly learning from one another, growing our skill sets together and pushing our designs further as a result. This makes us stronger as a team, and better teammates. We often work independently of each other, acting as part of teams with other architectural and design firms. We embrace this chance to expand our experience and add value.


Architecture Interior Design Mechanical Engineering LEED Facilitation Laboratory Design Heritage Conservation Marketing/Public Relations Project Management Explore our integrated design portfolio.


Working closely with a broad range of research and process-driven teams, mcCallumSather’s integrated laboratory design team have completed more than one million square feet of specialized laboratory design in the past five years. We understand the importance of safety within labs and the challenges to retrofit and make them accessible to all. We take our time to learn from our stakeholders, ask questions, observe their processes and challenge assumptions, while also engaging authorities early in the process recognizing they are key to a project’s success. This process informs flexible and future-ready design and our commitment to continuous learning has resulted in a wide range of exceptionally sustainable, tailored, high-performance environments.


Wet labs Dry labs Research based labs Animal care Design and development Construction administration Specifications FF&E Equipment Selection Support Coordination of experts Authorities Liaison Explore our laboratory portfolio and learn more about how it fits within our firm’s integrated design services.

Industry Sectors Served

  • Office
  • Industrial
  • Retail
  • Hospitality
  • Multi-Residential
  • Educational
  • Healthcare
  • Institutional

Additional information

Service Area: Southern Ontario and beyond with


mcCallumSather Brand Essence


286 SANFORD AVE N., 2nd Floor, Hamilton, Ontario L8L 6A1, Canada
Get directions