Alexander Temporale – Principal

Alexander Temporale, principal of ATA Architects Inc. in Oakville, Ontario, has a long history of involvement in heritage conservation, downtown revitalization and urban design. He is responsible for a variety of restoration projects and heritage conservation studies, including the Meadowvale Village Heritage District Study that led to the creation of the first heritage district in Ontario. An interest in history and conservation has resulted in a long association with the heritage conservation movement as a lecturer, resource consultant and heritage planner. Earning his Bachelor of Architecture at the University of Toronto, Alexander first entered private practice with partner John Stark (forming Stark Temporale Architects).

As a strong supporter of local architecture, heritage and urban renewal in the Peel and Halton regions of Ontario, Alexander has provided the community with strategic guidance and vision. His volunteer work in related fields is extensive and has included membership in the Brampton Local Architectural Conservation Advisory Committee, Heritage Mississauga, and Visual Arts Ontario. Alex has also been a lecturer for the Ontario Historical Society on urban revitalization and a consultant to Heritage Canada with the “Main Street” program.

As a member of the OAA “Perspectives” advising committee, Alexander gives the voice of the architect in practice a needed presence. ATA Architects Inc. has enjoyed a diversity of projects both in nature and size, receiving recognition for both small and large commissions through numerous local architectural design and planning awards that recognize contributions to the architectural and urban qualities of the communities in which the firm works.


Michael Biljetina

ATA is very pleased to announce that Michael Biljetina, B.Sc., B.Arch., MRAIC, AIA, OAA has joined our architectural team. Michael has broad experience in managing a wide variety of projects, both public and private. He brings additional expertise to the design and management of our Client’s projects. Michael, born and raised in Hamilton brings a local perspective of a growing segment of the firm’s work in the Hamilton/Burlington market. ATA has projects currently underway for the City of Hamilton and McMaster University.



Mark Driedger 

Mark Driedger graduated from Ryerson University in Architectural Science. He started his career working for general contractors, building residential and institutional buildings as a project manager. In 2005, he joined ATA and since then has completed a variety of residential, commercial and institutional projects with the firm. He is LEED certified and is working on several leading-edge sustainable design projects and research with the National Research Council of Canada, Ryerson University, Autodesk, ASHRAE and Lawrence Tech University in Detroit. Over the years, Mark has developed a keen interest in the intersection of science and design.