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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 3,500 difference makers is IBI’s Leadership team, setting out a compelling vision and guiding IBI Group towards the future.

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William Sanabria

Director | Sr. Practice Lead, Infrastructure
Toronto West, ON

William Sanabria
#Director | Sr. Practice Lead, Infrastructure# #All# #Bridges, Roads & Highways# #Transportation# ## #Civil Infrastructure# #Engineering# #Leader# #Project / Programme Management# #Subject Matter Expert# #Transportation# #Transportation Engineering# #Transportation# ## #Water / Wastewater# #Industrial# ##
Toronto West, Ontario, Canada
William Sanabria has over 24 years of experience in the management of transportation design and construction projects in the areas of highways, freeways, arterial roads and urban streets, as well as, storm and sanitary sewers. His design work includes all aspects of highway and municipal infrastructure, including Class Environmental Assessments, roadway, drainage, roadside protection, utility coordination, drafting and contract documentation. William has a sound knowledge of relevant legislation, including the Occupational Health and Safety Act, and applicable codes and standards, including York Region Design Standards and Guidelines and Ontario Provincial Standards. He is fluent in both English and Spanish and is a member of the Transportation Association of Canada Geometric Design Standing Committee.
#North America#
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Demetrius Yannoulopoulos

Director | Office Lead
Ottawa, ON

Demetrius Yannoulopoulos
#Director | Office Lead# #All# #Civil Engineering# #Civil Infrastructure# ## #Civil Infrastructure# #Development Engineering# #Engineering# #Leader# #Municipal Infrastructure# #Civil Infrastructure# ## #Office Lead# #Water / Wastewater# #Industrial# ##
Ottawa, Ontario, Canada
https://www.linkedin.com/in/demetrius-yannoulopoulos-83277286
Demetrius Yannoulopoulos is a Professional Engineer in Ontario with over 30 years of experience in civil engineering in both Land Development and Municipal Engineering. He is currently Project Director for a number of land development engineering studies and detail design projects, all based out of the Ottawa office. His Municipal Engineering experience includes design of road and infrastructure renewal projects in both Ottawa and Kingston. He has served as Municipal Engineer for various smaller municipalities reviewing development plans and providing general engineering advice to councils. public sector projects include infrastructure renewal for DND, and Correctional Services Canada. In addition to the various projects Demetrius has completed over the years, he has also assisted the civil engineering field in both the public and private realms by sitting on various engineering committees and serving on the executive of the Kingston Home Builders Association.
#North America#
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Geoff Southern

Out-of-Hospital Care Lead, Studio Director
London, UK

Geoff Southern
#Out-of-Hospital Care Lead, Studio Director# #All# #Architecture# #Brownfield Development# #Development Engineering# ## #Design Build# #High Rise Residential# #Residential# ## #Landscape Architecture# #Leader# #Living+# #Residential# ## #Low Rise Residential# #Residential# ## #Master Planning# #Placemaking# #Planning & Urban Design# ## #Mid Rise Residential# #Residential# ## #Mixed Use# #Commercial# ## #Office# #Commercial# ## #Placemaking# #Planning & Urban Design# #Placemaking# ## #Residential# #Retail# #Commercial# ## #Strategic Planning# #Subject Matter Expert# #UK Regional#
London, United Kingdom, United Kingdom
https://www.linkedin.com/in/geoffsouthern/
Buildings are nothing without people.
Geoff is responsible for leading the design of residential and mixed-use schemes in the UK (London & SE). Being dual-qualified, Geoff brings experience in architecture and landscape, especially as a contributor to place-making. With a passion for design excellence, he specialises in early-stage conceptual design, working with clients and stakeholders to transform an initial brief into feasible and implementable design options, then taking these projects on to planning, maximising development value. Alongside this he also contributes commercial experience and expertise in delivery, managing programmes to budget whilst delivering best value. Geoff has worked on developments worth £1b+ in value. Working with some of the largest developers in the UK, his knowledge of private apartments through to social housing has provided him with best practice knowledge in this sector, yet has also delivered award-winning libraries, schools and healthcare buildings.
#United Kingdom#
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Elizabeth Kadela

Director | Sr. Practice Lead, Contract Administration
Toronto - West, ON

Elizabeth Kadela
#Director | Sr. Practice Lead, Contract Administration# #All# #Bridges, Roads & Highways# #Transportation# ## #Bus Rapid Transit# #Transportation# #BRT# ## #Civil Infrastructure# #Leader# #Project / Programme Management# #Subject Matter Expert# #Systems# #Traffic Management# #Transportation# ## #Transportation#
Toronto - West, Ontario, Canada
Elizabeth Kadela P.Eng has specialized expertise in the construction oversight for traffic management systems and electrical work, acting as the project manager or contract administrator for those specialties on over 40 MTO construction contracts. She is presently responsible for a broad portfolio of transportation construction administration assignments, which include the GO Transit BRT in Mississauga, Metrolinx Corridor Noisewall, and various Regional Road widening projects in Peel Region.
#North America#
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Chris Calabrese

Associate | Manager, Landscape Architecture
Toronto, ON

Chris Calabrese
#Associate | Manager, Landscape Architecture# #Active Transportation# #Transportation# ## #All# #Design Build# #Green# #Landscape Architecture# #Light Rail Transit# #Transportation# #LRT# ## #Master Planning# #Placemaking# #Planning & Urban Design# ## #Mixed Use# #Commercial# ## #P3# #Parks# #Institution# #Civic & Government# ## #Placemaking# #Planning & Urban Design# #Placemaking# ## #Project / Programme Management# #Stadium / Athletic Facilities# #Institution# #Civic & Government# ## #Transportation# #Water / Wastewater# #Industrial# ##
Toronto, Ontario, Canada
https://www.linkedin.com/in/chris-calabrese-803272b8
Combining the natural and built environment for site user's to experience while implementing ecologically sensitive design initiatives is the culmination of the Landscape Architectural field. Having the ability to personally influence this process is the most rewarding feeling.
Chris has 14 years of professional experience in landscape architecture and planning consultation services; more specifically, master & site planning (large and small scales), urban design, park and sporting facility planning & design, landscape and hardscape design and construction documentation. As a “hands-on” project manager, Chris is deeply involved in the multi-stages of a project, from conceptual design through construction administration to ensure the project’s successful completion. Chris’s passion and understanding of the Landscape Architectural field has effectively bridged the contractor / client / architect gap and led to strong working relationships for years to last. His involvement in challenging, multi-disciplinary projects has greatly contributed to his well-rounded understanding of leading project teams.
#North America#
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Robyn Brown

Director | Sr. Practice Lead, Planning
Toronto, ON

Robyn Brown
#Director | Sr. Practice Lead, Planning# #All# #Economic / Financial Analysis# #Leader# #Planning & Urban Design# #Placemaking# ## #Research & Development#
Toronto, Ontario, Canada
Robyn Brown is the lead of the Toronto office’s Real Estate, Economics & Planning team, as well as a member of IBI’s Placemaking group. As a dedicated professional, her project work is geared to giving her clients the best advice possible. Her work transcends a broad spectrum of real estate advice, including highest and best-use studies/disposition strategies; economic development strategies; growth management; market studies; feasibility studies; community services and facilities studies; economic impact analysis; demographic analysis and related skills. Prior to joining IBI Group, Robyn worked in commercial real estate specializing in industrial leasing and land disposition. Robyn has a BA in Political Science and an MA in History from the University of Toronto, along with a Masters in Planning from Ryerson University. She is involved in a wide range of external organizations, including the Urban Land Institute (including their Women’s Leadership Initiative and Mentorship Committee), is on the Board of Directors for Toronto CREW, and is an active member of BILD. She has proven to be an excellent and effective IBI Group ambassador. Robyn is the ultimate team player, inspiring and pushing to think creatively and proactively.
#North America#
Bruce Beaton

Associate | Project Manager
Los Angeles, CA

Bruce Beaton
#Associate | Project Manager# #All# #Engineering# #Industrial# #P3# #Project / Programme Management# #Retail# #Commercial# ## #Subject Matter Expert# #Transportation#
Los Angeles, California, United States of America
Bruce Beaton is an accomplished project manager with over 25 years of experience, utilizing best practices to ensure on-time and on-budget delivery of the following: complex infrastructure designs, large industrial, commercial, institutional, transportation, transit, and healthcare projects. He has extensive experience with the AFP/P3 delivery model as both leader of project agreement development and transaction phase activities with Infrastructure Ontario and as Technical Advisor to Infrastructure Ontario and the Ministry of Transportation on multibillion-dollar transportation projects. Bruce is fully versed in the development of schedules, budgets, resource forecasts, risk matrices and procurement documents. His past and current roles have required leadership of teams of professionals, both internal and external, in the development of complex infrastructure designs, technical specification documents and managing multidisciplinary design teams to deliver high quality designs.
#North America# #Pacific West#
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Bruce W Retzsch

Associate Director-Principal | Architecture
Boca Raton, FL

Bruce W Retzsch
#Associate Director-Principal | Architecture# #All# #Architecture# #Commercial# #Industrial# #Infill Development# #Land Use Planning# #Placemaking# #Planning & Urban Design# ## #Leader# #Manufacturing# #Industrial# ## #Master Planning# #Placemaking# #Planning & Urban Design# ## #Mid Rise Residential# #Residential# ## #Mixed Use# #Commercial# ## #Planning & Urban Design# #Placemaking# ##
Boca Raton, Florida, United States of America
https://www.linkedin.com/in/bruce-retzsch-1917166/
Bruce Retzsch established the firm of RLC Architects in Boca Raton, Florida, serving as its managing principal and principal urban designer for more than 30 years until being acquired by IBI Group in 2022. The firm is recognized for superior architectural design and planning services in the multi-family, mixed-use, retail, office and distribution/logistics markets in South Florida, and is the recipient of numerous AIA design awards. Mr. Retzsch is an active member of AIA, serving as the 2022 Palm Beach AIA president and recipient of the component’s 2018 Gold Medal. He is also involved in many industry organizations, including ULI, NAIOP and CIASF, and volunteer activities with the City of Boca Raton, Boca Raton Community Church, and the National MS Society. A graduate of the University of Illinois, Bruce holds a Bachelor of Science in Architectural Studies and a Master of Architecture in Urban Design.
#North America# #Southeast#
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Jonathan Blades

Software Developer
Glasgow, UK

Jonathan Blades
#Software Developer# #All# #Bridges, Roads & Highways# #Transportation# ## #Information & Communications Technology# #ICT# ## #Operations Centre# #Transportation# ## #Software as a Service# #SaaS# ## #Systems# #Systems Integration# #Systems# ## #Transit Technology# #Transportation# #ITS# #Intelligent Transportation Systems# ## #Transportation# #UK Regional#
Glasgow, United Kingdom,
Jonathan Blades has over ten years of technical experience in the IT and telecom field, particularly network administration and PC support. He has extensive experience in LAN/WAN including installation and maintenance, and TCP/IP troubleshooting and support, multiple server/domain; remote access support, as well as CAT 6/5e Cabling. Jonathan specialises in operating systems, telephone systems and and to top it off, he also has considerable experience in website, app and software development.
#United Kingdom#
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Jack Chung

Associate Manager, Architecture
Toronto, ON

Jack Chung
#Associate Manager, Architecture# #All# #Architecture# #High Rise Residential# #Residential# ## #Living+# #Residential# ## #Mixed Use# #Commercial# ## #Residential#
Toronto, Ontario, Canada
Jack Chung has over 20 years of experience specializing in high-rise residential projects. Through his involvement on a number of projects, such as 88 Scott Street, Pears on the Avenue and The KIP, he has developed long-lasting client relationships for the firm. His hands-on experience over the years has enabled him to effectively see a project from design through to project completion.
#North America#
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Diego García

Architect & Urban Planner
Mexico City, MX

Diego García
#Architect & Urban Planner# #All# #Architecture# #Land Use Planning# #Placemaking# #Planning & Urban Design# ## #Living+# #Residential# ## #Master Planning# #Placemaking# #Planning & Urban Design# ## #Mixed Use# #Commercial# ## #Mobility Hub# #Transportation# ## #Mobility+# #Transportation# ## #Placemaking# #Planning & Urban Design# #Placemaking# ##
Mexico City, MX, Latin America
https://www.linkedin.com/in/arqurbdiegogarciaf/
Diego García is an Architect and Urban Planner with more than 11 years of experience, mainly in the branches of urban planning, project management, urban regulations, architectural regulations and design. Diego has a master’s degree in Urban Planning from the Polytechnic University of Catalonia (Barcelona TECH) and is a graduate of the National Autonomous University of Mexico (UNAM). Among the relevant projects in which Diego has participated are the Master Plan of the CETRAM Constitution of 1917, two master plans to the south of the Guatemala Metropolitan Area of more than 1,000 ha, the comprehensive project for a Transportation-Oriented Development (TOD) in Belo Horizonte, pre-feasibility study for a cable car in Mexico City, project review and regulatory engineering for two towers of more than 35 levels and 30,000 sq m of construction, and project review and regulatory engineering for a museum in a heritage building.
#Latin America#
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Kelly Cobbe

Director | Can East Sector Lead, Infrastructure
Waterloo, ON

Kelly Cobbe
#Director | Can East Sector Lead, Infrastructure# #Active Transportation# #Transportation# ## #All# #Bridges, Roads & Highways# #Transportation# ## #Brownfield Development# #Development Engineering# ## #Civil Engineering# #Civil Infrastructure# ## #Design Build# #Development Engineering# #Engineering# #Leader# #Light Rail Transit# #Transportation# #LRT# ## #Municipal Infrastructure# #Civil Infrastructure# ## #Office Lead# #P3# #Parking# #Transportation Engineering# #Transportation# ## #Water / Wastewater# #Industrial# ##
Waterloo, Ontario, Canada
https://www.linkedin.com/in/kelly-cobbe-8917a418/
Kelly Cobbe has provided engineering design, construction administration and project management services to various local municipalities, regional municipalities and provincial and federal government agencies in Eastern and Southwestern Ontario for 30 years. Leveraging a number of IBI’s core strengths, he has undertaken infrastructure and urban streetscape revitalization projects in the downtown cores of a number of municipalities in Waterloo Region. Past efforts have also included leading the civil design efforts during the preparation of the Waterloo LRT Bid and managing a portion of the Viva H3 BRT project. In addition to his Professional Engineer licensing in Ontario and Manitoba, Kelly was designated as a Consulting Engineer by Professional Engineers of Ontario in 2004. He is a founding member and current past-chair of the Grand River Chapter of Consulting Engineers of Ontario, an active member of the Waterloo Region Homebuilder Association Waterloo Liaison Committee, and a past member of the KW Chamber of Commerce Regional and Municipal Affairs Committee.
#North America#
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