Our People

Priscilla Ladouceur

Principal ‐ B.E.S., B.Arch., OAA, MRAIC

Priscilla is a Principal at Hossack Architecture with over 30 years of architectural experience in designing and managing projects of varying type and scale. Since first joining the firm in 1995, Priscilla has been involved in all of the firm’s major projects including new buildings, additions, interior renovations, feasibility studies and master planning. A graduate from the University of Waterloo School of Architecture, Priscilla brings exceptional design problem solving and team coordination skills to each project. Priscilla is an alumni of Skills Canada, having won provincial and national competitions in architecture at a young age, and now lends her time mentoring high school students in skills trades and young women as a career coach.

Steven Terra

Principal - B.Arch.Sci., M.Arch, OAA, MRAIC

Steven is a co-owner and Principal at Hossack & Associates Architects. He joined the firm in 2002 and currently has over 18 years of experience in both the construction industry and architectural practice. As a graduate from Ryerson University and Lawrence Tech’s Architectural Engineering program, Steven’s main focus in all office projects is in the Contract Document and Contract Administration Phases. His considerable construction knowledge, plus his technical skills in Architectural Contract Documentation are applied to the firm’s projects to ensure quality control, thorough documentation and construction logic. Steven is the firm’s lead on-site contract administration representative on projects ranging from M to M. It is this exposure and depth of construction knowledge that informs our contract documentation detailing, process and quality control.

Peter Hossack

Founder - B.Arch., OAA, MRAIC

As the founding Principal, Peter acts as senior coordinating Architect. He is an experienced Team Leader with over 33 years of architectural experience in the design and construction industry after graduating from Carleton University. His expertise in project management and consultant coordination on complex facility projects of all types and sizes has gained him a solid reputation for dedicated, diligent and expert project management. Peter’s has strong managerial skills, a detailed technical knowledge and a keen sense of integrated design solutions that involve a full understanding of the civil, structural, mechanical and electrical technical aspects of the project gained from experience in many complex multi-million dollar, multi-disciplinary projects.

Carolyn Smith


Carolyn is an enthusiastic and versatile Architect with 30 years of experience in the field, on a diverse range of project types and for a wide variety of client groups. Carolyn’s specialized skills include: innovative and functional design solutions, creative team leadership, strong client retention, project oversight, and public speaking.

Chris Telfer

B.Arch., M.Arch. OAA, MRAIC

Chris Telfer joined Hossack Architecture in 2012, and currently has over 20 years’ of industry experience. As an OAA Licensed Architect, Chris offers a wealth of knowledge, particularly in the areas of Construction Practices, Owner Relationships and Project Management. Chris is a graduate of Lawrence Technological University where he attained a Master of Architecture and Bachelor of Science in Architecture. As a detailed-focused individual who is integral in the preparation and coordination of contract documents through to the project close out, Chris continues to manage numerous new construction and renovation projects, delivering them on time and on budget.

Christine Stasevich

Dipl.Arch.Tech., C.Tech., OACETT

Christine has over 20 years of experience in the design and construction industry. As a senior Architectural Technologist, she brings a wealth of knowledge in technical detailing, building science and construction technology with relation to complex large-scale renovations, additions and new construction throughout southern Ontario. She is responsible for Project Management throughout all phases, with special attention to ensuring technical aspects of design comply with regulations, preparation & coordination of design and contract documentation, building code compliance and oversight of sub-consultant coordination. Christine has also developed a long standing good working relationship with many Municipal Authorities and is adept at handling involved Planning and Building Approvals from site plan approval and building permits to variances, conditional permits and specialty permits.

Jonathan Knight

B.Arch.Sci., M.Arch., OAA

Jonathan Knight joined Hossack Architecture in 2013 upon completing his Masters of Architecture at the University of Toronto. He is a Licensed Architect with the OAA. Jonathan manages projects through construction while also being involved with conceptual designs and development for prestigious golf and recreational clubs. His experience with developing schematic presentation imagery and conceptual renderings, allows clientele to visualize proposed development through all stages of the project. Jonathan has extensive experience with the building approval process from building permits to variances across multiple municipalities.

Karolina Slazyk

Dipl. Business Administration, Finance & Bookkeeping

Karolina joined Hossack & Associates in 2011. She graduated from Sheridan College’s Business Administration – Finance Advanced Diploma program. Karolina is the Financial Administrator for the firm and manages all aspects of the financial and accounting related process for the company which includes Accounts Payables and Receivables. In addition to her accounting responsibilities, Karolina also works with the management team to prepare budgets and provides financial forecasting and analysis.

Guka Yogarajah


Guka joined Hossack & Associates Architects in 2017, with a Honours Diploma in Architectural Technology from Sheridan College.

Guka’s technical experience is focused on contract document creation, consultant coordination and contract administration. He also effectively contributes to the creation of design visualization material, including conceptual modelling, 3D imagery and virtual walkthrough videos. Guka has a high level of technical proficiency in architectural computer software, used in various construction documents and marketing presentations for many instiutional and recreational projects throughout Southern Ontario. His core values of integrity, innovation and development can be seen in his work as he continues to commit to the team-building culture and collective sharing of knowledge within the office.

Rabab Saghir

Intern Architect, B.Arch.

Rabab brings over seven years of architecture and landscape architecture industry experience to the team. She is an Interrn Architect with the OAA currently fulfilling requirements toward licensing in the near future. Rabab is part of the design and productions team, while also providing support through construction administration. She is detail oriented and her diverse experience supports the team through different stages of design development, approvals and contract document production.

Kevin Barlaan

Dip.Arch.Tech., B.S.Arch.

Kevin joined Hossack and Associates Architects in 2019 upon graduating cum laude with a Bachelor of Science in Architecture degree at Lawrence Technological University. His acquired technical knowledge from achieving an Architectural Technology diploma with high honours, together with his project coordination and management work experiences make him a skilled asset in numerous new construction and renovation projects. His core values of innovation and collaboration are evident through his work as he also continues to commit to team-building and collective knowledge-sharing in the office. Kevin is detail oriented and a highly organized individual that continuously strive for different ways to grow and contribute within our team in both design and construction administration.

Gabriela Betancourt

B.C.E, Dipl.Arch.Tech

Gabriela joined Hossack & Associates Architects in 2018 after graduating from the Architectural Technology program at Sheridan College with high honours. Gabriela is detail oriented, methodical and has a logical approach to contract document creation and consultant coordination. She produces detailed technical plans and 3D models using industry standard BIM software. Her analytical skills, desire to develop technical experience and previous Civil Engineering experience as a Project Manager are assets in assisting the firm in projects she’s involved with.

Alexander Mayhew

Intern Architect - M.Arch., B.A.S.

Alexander Mayhew holds a Master of Architecture from the University of Calgary’s School of Architecture, Planning and Landscape and a Bachelor of Architectural Studies from Laurentian University’s McEwen School of Architecture. Alexander is a part of the design and productions team, while also providing support through construction administration. He effectively contributes to the creation of design visualization material alongside the firm’s senior staff, including conceptual modelling. His core values of sustainability and innovation are apparent through his work as he also continues to commit to team-building and collective knowledge-sharing in the office. Alexander’s graduate research focused on the importance of human-scaled design and how in-between spaces can contribute to place-making which are both key elements in our institutional projects.

Travis Chiem

Dip. Arch. Tech.

Travis, a George Brown graduate, became part of Hossack Architecture in 2023. He plays an active role in crafting construction documents and details. Proficient in 3D modelling and CAD software such as Revit and AutoCAD, Travis showcases a versatile skill set that harmonizes with his hands-on experience in the field. With a fusion of academic knowledge and practical expertise, Travis continually seeks avenues for growth and contribution within our team.

Ya Ting Xu

B.S. Arch Eng.

Ya Ting graduated from Architectural Engineering at University of Waterloo as part the Class of 2023 with an interest in harmonizing the science of buildings and the artistry of architecture. Ya Ting is detail oriented with a technical problem solving accumen.