Lead by two founding directors, the select team of architects & interior designers at T-A Square are driven by crafting superbly designed spaces in the most efficient & intelligent way possible.


  • Timothy Yee
    B.Arch ( Hons ) Melb

    Tim is a passionate believer in architecture that is responsive to context, clients and commercial considerations. After receiving his Bachelor of Architecture (Honours) from the University of Melbourne, Tim worked as a graduate architect with both Craig Rossetti and James Millar before joining the large firm of Thomson Adsett Architects.

    In 2007 he co-founded T-A Square with Antony Tsjin to bring a new comprehensive offering to the Australian market which would draw on his extensive experience on private homes, multi residential and mixed-use projects, and retirement villages. In addition to his guiding hand in the studio’s design and development process, Tim is responsible for ensuring every client receives outstanding service as well as the highest quality architectural solutions.

  • Antony Tsjin
    MBA (Exec.) RMIT | MPM (Dis) RMIT | B.Arch (Melb)

    Antony brings an exceptional level of architectural and project management expertise to T-A Square. Following his dual Bachelors of Architecture (Honours) and Planning and Design from the University of Melbourne, Antony undertook further study at RMIT where he gained a Masters of both Business Administration (Executive) and Project Management (Distinction).

    This broad education has since been applied across more than 12 years of practical experience, on projects of between $2M and $35M in the multi residential, commercial and government sectors. Before establishing T-A Square with Timothy Yee, Antony worked at the prestigious Cox Architecture, ROTHELOWMAN and John Douglas Associates. Some of his clients include Stockland, Charter Hall, Department of Infrastructure, Department of Education, Hamton, CVA Properties, AXA Asian Pacific and Grocon.


Mario Chavez
Associate - Senior Project Architect
ARBV. 6853 (Australia) | B. Arch UNSA (Peru) | CAP 2352 IUPP 493

As a Senior Project Architect at T-A Square, Mario brings extensive experience to every project. Prior to joining the practice, he worked at HASSELL and Fish Payne Pattenden Architects.

With more than 18 years of experience on architectural design and documentation, Mario has exceptional skills across planning, detailing, designing and coordinating projects in both public and private sectors. Mario’s international experience includes several projects in Peru. With excellent communication, public relations, problem solving and leadership skills, combined with deep knowledge of engineering and architectural codes and standards, Mario is a highly valuable member of every project team.