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Our People

Spread across over 60 cities, our team is a global collective of urban experts in design, architecture, engineering, civil, transportation, urban geography, real estate, landscape, communications, software development and so much more. These are the people defining the cities of tomorrow.

Supporting our global team of 3,000 difference makers is IBI’s Leadership team, setting out a compelling vision and guiding IBI Group towards the future.

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Sylvia Hajo

Sr. Associate Principal | Interior Design, Buildings
Houston, TX

Sylvia Hajo
#Sr. Associate Principal | Interior Design, Buildings# #All# #Civic & Government# #Institution# ## #Education# #School# ## #Interiors# #Interior Design# ## #Retail# #Commercial# ## #Specialized Learning# #School# #Education# ## #Subject Matter Expert#
Houston, Texas, United States of America
Sylvia Hajo has over 20 years of interior design experience, with a specialization in the design of spaces for educational, commercial, health care and institutional clients. Her primary responsibilities include: design management of the project, design collaboration with client, creating interior design concepts, specifying furniture and fixtures, equipment , managing the interior design process including all furniture selections and specifications, overseeing interior project schedules, and adhering to furniture/fabrics/accessories project budgets. Sylvia is conscientious, precise, and is known as an effective communicator with client and stakeholder groups.
#North America# #Southeast#
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Laura Carroll

Associate | Manager, Architecture
Houston, TX

Laura Carroll
#Associate | Manager, Architecture# #All# #Architecture# #Education# #School# ## #Heritage / Historic Preservation# #K-12 Education# #School# #Education# ## #Learning+# #School# #Education# ## #Project / Programme Management#
Houston, Texas, United States of America
https://www.linkedin.com/in/laura-carroll-aia-90683485
Laura Carroll is a registered architect with over 19 years’ experience. She has successfully worked on numerous educational, religious, commercial and historic preservation projects, with an emphasis on PreK-12 educational work. Laura’s ability to understand and meet the needs and goals of her clients and her ability to provide creative design solutions for difficult problems have been invaluable to the success of her projects. Notable examples of Laura’s educational work include the following: Cypress-Fairbanks ISD Middle School 20, Bridgeland High School, Wells Elementary School, Anthony Middle School, Travis Intermediate School Masonry Replacement and numerous renovations to campuses throughout the greater Houston area.
#North America# #Southeast#
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Steven Thesier

Associate Director | Principal, Education
Binghamton, NY

Steven Thesier
#Associate Director | Principal, Education# #All# #Architecture# #Education# #School# ## #Higher Education# #School# #Education# ## #K-12 Education# #School# #Education# ## #Leader# #Learning+# #School# #Education# ## #Office Lead# #Subject Matter Expert#
Binghamton, New York, United States of America
Steven Thesier has more than 26 years of experience with areas of specialty that include project management and project design for new construction and renovations, educational facilities planning, referendum planning for educational facilities, NYSED coordination on school projects, and NYS OGS project development and execution.
#North America# #Northeast#
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Dave Barrett

Associate | Manager, Planning
Waterloo, ON

Dave Barrett
#Associate | Manager, Planning# #All# #Environmental Assessment# #Development Engineering# ## #Land Use Planning# #Placemaking# #Planning & Urban Design# ## #Planning & Urban Design# #Placemaking# ## #Subject Matter Expert#
Waterloo, Ontario, Canada
Dave Barrett has over 15 years of land use planning and development experience. He has extensive experience in aggregate site planning and licensing and processes related to aggregate applications, including work for a number of clients ranging from smaller individual producers to the top aggregate producers in Ontario. As Manager of Aggregate Planning, Dave provides project management and planning evaluations for pit and quarry applications under the Aggregate Resources Act. Dave also provides urban and regional planning, analysis, and research support for all aspects of the IBI’s activities. He has experience in providing planning consulting services to municipalities and private sector clients, resource planning, and licensing. He is also experienced in obtaining development approvals, Environmental Assessments for waste management projects, Class Environmental Assessments, and other environmental approvals. He has provided expert evidence before the Ontario Municipal Board. Dave is a Registered Professional Planner and is a member of the Canadian Institute of Planners.
#North America#
Visit Christina Pilz's Profile
Christina Pilz

Associate - Manager, Landscape Architecture
Toronto, ON

Christina Pilz
#Associate - Manager, Landscape Architecture# #Active Transportation# #Transportation# ## #All# #Civic & Government# #Institution# ## #Green# #Heritage / Historic Preservation# #Landscape Architecture# #Mobility Hub# #Transportation# ## #Mobility+# #Transportation# ## #P3# #Parks# #Institution# #Civic & Government# ## #Placemaking# #Planning & Urban Design# #Placemaking# ## #Project / Programme Management# #Transportation#
Toronto, Ontario, Canada
Christina Pilz is a Landscape Architect and ISA Certified Arborist with more than 18 years of experience in design and project management. She brings a broad range of skills and capabilities to the firm drawn from her academic and work experience. She has an undergraduate degree in Environmental Science specializing in Natural Resource Management and Botany, and a Master of Landscape Architecture from the University of Guelph. Ms. Pilz combines strong design sensibilities with an in-depth understanding of ecological systems and plant material, resulting in sustainable design solutions that are sensitive to the environment while creating aesthetically pleasing and functional public spaces. In recent years, Christina’s work has been focused on the delivery of P3 projects and implementation of sustainable design solutions that include LID, uncompacted soil conditions for long-term tree growth, and thoughtful plant species selection.
#North America#
Visit Rachel Vesz's Profile
Rachel Vesz

Urban Designer
Toronto, ON

Rachel Vesz
#Urban Designer# #All# #Land Use Planning# #Placemaking# #Planning & Urban Design# ## #Master Planning# #Placemaking# #Planning & Urban Design# ## #Placemaking# #Planning & Urban Design# #Placemaking# ##
Toronto, Ontario, Canada
https://www.linkedin.com/in/rachel-vesz-27a543116
Rachel is an Urban Planning graduate, specializing in Urban Design. In her role with IBI Group, Rachel has a passion for creating vibrant community master plans, rooted in an understanding of planning best practices and innovative urban design. She has experience working on a diverse range of local and international projects with IBI Group, with project experience related to streetscape master planning, community master planning, public realm design, transit-oriented development, block and site planning and high-quality urban design, among others. Rachel is also experienced in public consultation, having worked with a variety of communities in effectively engaging their citizens using technology-based approaches.
#North America#
Mark French

Director | US Deputy Education Lead, Buildings
Houston, TX

Mark French
#Director | US Deputy Education Lead, Buildings# #All# #Architecture# #Education# #School# ## #K-12 Education# #School# #Education# ## #Leader# #Learning+# #School# #Education# ## #Office Lead# #Sustainability & Environmental Management# #Green# ##
Houston, Texas, United States of America
With over 30 years of experience, Mark French LEED AP BD+C offers extensive design and project management experience in educational facilities. He is involved on all aspects of a project including schematic design, design development, construction documents and project management. Mark earned the Recognized Educational Facility Professional designation from the Council of Educational Facility Planners International in 2002 due to his extensive experience in educational facility planning and design. He also achieved the designation of Accredited Learning Environments Planner in 2013.
#North America# #Southeast#
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Adam Haimour

Associate Director | Practice Lead, Civil Engineering
Calgary, AB

Adam Haimour
#Associate Director | Practice Lead, Civil Engineering# #All# #Civil Engineering# #Civil Infrastructure# ## #Development Engineering# #Engineering# #Leader#
Calgary, Alberta, Canada
Adam Haimour is an Associate Director and Practice Lead of the Civil Engineering Group with IBI Group. He is a professional engineer registered in Alberta, BC and overseas with over 15 years of experience in municipal/civil engineering and land development projects in both greenfield and retrofit/redevelopment settings. He has completed a Bachelor of Science (B.Sc.) and Master of Engineering degree (M.Eng.) at the University of Calgary. Mr. Haimour has worked on numerous projects throughout Western Canada for various municipalities, districts, hamlets, private developers and First Nations. He specializes in multi-disciplinary team management, concept/schematic design development, budget management, preliminary/detailed engineering design, urban/rural road design, water/wastewater engineering, transportation engineering, tender/contract documents, contract administration, and construction management. He has managed large-scale engineering and land development projects for both the public and private sector.
#North America#
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Mansoor Kazerouni

Global Director | Buildings
Toronto, ON

Mansoor Kazerouni
#Global Director | Buildings# #All# #Architecture# #High Rise Residential# #Residential# ## #Hospitality# #Commercial# ## #Hotels & Resorts# #Commercial# #Hospitality# ## #Leader# #Living+# #Residential# ## #Mixed Use# #Commercial# ## #Office# #Commercial# ## #Regional / Sectoral# #Senior Management# ## #Residential# #Senior Management#
Toronto, Ontario, Canada
Every building has its own idiosyncratic constraints of context, site, program, budget, and vocabulary. The challenge is to successfully resolve them into a gracefully crafted architectural composition. Our role as designers is to ensure that each building has its own personality and responds appropriately to its urban context. This is what we do best.
Mr. Kazerouni is the Global Director of Buildings at IBI. Mr. Kazerouni graduated from Washington University in St. Louis with a Master’s degree, in 1991. With over 25 years of experience, he has a significant portfolio of projects completed or underway across Canada, the United States, the UK, UAE, Jordan and India. These include high density high-rise residential buildings, hotels, office, retail, institutional, and complex urban mixed-use developments. A number of these projects have been nominated for and received Urban Design and Architectural Design awards. Mr. Kazerouni has been a guest lecturer on the subject of architecture and mixed-use design at universities, conferences and various panels. He has also been interviewed on the subject by architectural publications, newspapers, television and other media. Mr. Kazerouni’s abilities and expertise in his field have been recognized by his appointment to the City of Mississauga’s Urban Design Advisory Panel, the City of Markham’s Urban Design Advisory Panel and the City of Vaughan’s Urban Design Advisory Panel. He is also a past Advisory Board Member of the Urban Land Institute, and a member of the Royal Architectural Institute of Canada.
#North America#
Visit Mansoor Kazerouni's ProfileVisit Cathy Offenberg's Profile
Cathy Offenberg

Associate Director | Practice Lead, Landscape Architecture
Boston, MA

Cathy Offenberg
#Associate Director | Practice Lead, Landscape Architecture# #All# #Civic & Government# #Institution# ## #Civil Infrastructure# #Landscape Architecture# #Leader# #Master Planning# #Placemaking# #Planning & Urban Design# ## #Placemaking# #Planning & Urban Design# #Placemaking# ## #Subject Matter Expert#
Boston, Massachusetts, United States of America
Since joining our team in 1999, Cathy Offenberg has developed a specialty in campus site planning and design for public and private school facilities. She also oversees a diverse array of practice areas including urban parks, streetscapes, and embassy work for the U.S Department of State’s Overseas Building Operations (OBO). As a Principal with the firm, Cathy is responsible for managing project scope, budget and schedule; client and sub-consultant coordination; supervising in-house project staff; development of design, technical and presentation packages, as well as cost estimates, technical specifications and permitting documents; construction administration and project representation at meetings and presentations. Cathy has a thorough understanding of the public process and has assisted in managing complex projects from inception through construction.
#North America# #Northeast#
Visit Neil Mackenzie's Profile
Neil Mackenzie

Associate Director | Practice Lead, Architecture
Calgary, AB

Neil Mackenzie
#Associate Director | Practice Lead, Architecture# #All# #Architecture# #Commercial# #Healthcare# #Industrial# #Leader# #Project / Programme Management# #Residential#
Calgary, Alberta, Canada
Neil Mackenzie is a motivated and energetic professional with 35 years experience in consulting, project management and related industries. As a result of Neil’s pubic and private work, he is effectively able to manage projects under a variety of delivery models. His past experience includes residential, institutional, commercial and health care projects. His key strengths include team and relationship building. Neil is a registered architect in the providence of Alberta and is a LEED AP.
#North America#
Visit Tony Withall's Profile
Tony Withall

Associate | Manager, Planning
Missssauga, ON

Tony Withall
#Associate | Manager, Planning# #All# #Land Use Planning# #Placemaking# #Planning & Urban Design# ## #Mixed Use# #Commercial# ## #Planning & Urban Design# #Placemaking# ## #Residential# #Retail# #Commercial# ##
Missssauga, Ontario, Canada
Tony Withall has over 12 years of land use planning and development experience with residential, commercial and mixed use developments. His responsibilities involve reviewing and interpreting Official Plans, Zoning By-Laws, Site Plan Guidelines and Urban Design Guidelines. He is involved in every aspect of the planning process from conceptual design to application submission and approval coordination. Primarily focusing on commercial developments for several large private Canadian companies, Tony has used his expertise in planning instrument analysis and interpretation, and site design to obtain approval for a large number of QSR restaurants and service stations throughout Ontario.
#North America#