A little about us….

Collaborative Architecture was created in 2009 with a vision to fight climate change through transforming our built environment with creative design. We believe that our homes and workplaces should be healthy, comfortable, efficient, and above all beautiful spaces to be in. Making, maintaining, and using our buildings should be a pleasure, and a benefit to both the people in our lives and the planet we all share.

We respond to our Clients needs and wishes with designs that respect the location, orientation, natural and cultural features of the site. Applying our creative design and experience to your project, we strive to build no more than what you need. Our Clients usually find that they can actually build less, but thus afford better quality as a result of our design work.

We take great care to create beautiful, healthy indoor environments. We avoid known toxic materials and will always recommend the environmentally preferable solution. When there are cost implications to our choices, we will be clear about your options and offer alternatives to suit your budget.

Ultimately, we believe that great design should be green design and there is no need to choose between them.

These Core Values are the foundation upon which we build our projects, business, and reputation:

  • Beauty
  • Health
  • Improving our environment
  • Social responsibility
  • Excellence in Customer Service

Meet our team of talented Green Architects & Designers

Daniel Hall, O.A.A.

Principal Architect & Director of Design

As a licensed Carpenter and Architect, Daniel brings a unique perspective from his 15 years hands-on experience building prior to 19 years and counting in architecture. He has a deep rapport with builders and is adept at drawing on the knowledge and skills of the tradespeople that will be building your new premises.

Like all of the team at Collaborative Architecture, Daniel is passionate about green design. He will advise you on the best approaches, materials, and decisions to ensure that your finished offices are healthy, welcoming spaces, keeping in mind the impact on budget and schedule.


Architect & Senior Designer

Ana joined Collaborative Architecture in 2020, bringing her commitment to sustainable design and project management knowledge. With over 10 years of experience, Ana brings a focus on creating healthy and functional buildings, made for any budget. Ana’s problem solving and creative thinking leads to better projects and highly satisfied Clients.

Ana is a licensed architect in Spain and Ontario, and a Certified Passive House Designer (CPHD) with the Passivhaus Institut. Ana has been involved in a wide range of projects including multi-unit and single residential buildings, commercial, institutional, and interior commercial fit-out projects.

Sandra Iskandar, OAA, MRAIC

Architect & Senior Designer

Sandra is a project architect, project manager and architectural educator with 20 years of acquired experience in the field of community, heritage, sport and arts and culture. Deep expertise in the overall implementation of capital infrastructure projects, providing technical and management functions from concept to post-construction.

Sandra is a strong leader with on-the-job site supervisory experience, an acute sense of design with advanced to develop strong relationships among user groups and project team.

Paul Dowsett, OAA

Architect & Senior Designer

Paul is the founding Principal Architect of Sustainable. At the core of Paul’s philosophy and practice is the belief that design and construction solutions should be Simple, Sensitive, and Sustainable – and that they should be fully engaged with the community.

With more than three decades of local and international residential, institutional, and commercial sustainable design and project leadership experience, Paul is uniquely qualified to lead a highly collaborative design team for projects of diverse scales, types, and complexities.

Hannah Spasov

Intern Architect, M.Arch, she/her

Hannah is a recent Master of Architecture and Collaborative Water Program graduate from the University of Waterloo. She has over four years of experience working in various architecture offices in Canada and the Netherlands. She joined Collaborative Architecture in 2018 and has worked on numerous projects in both rural Ontario and in the Toronto-area.

Growing up near the Ganaraska Forest, Hannah has a passion for nature and local history. As for architecture, she is interested in sustainability, energy efficiency, environmental issues, and social equity in design.

Gabe Szombathelyi, M.Sc

Architectural Technologist & BIM Manager

Gabe moved from Europe to join TABC in early 2020. With a background in Architectural Technology and a Master’s degree in Sustainable Building he brings green concepts to life through building science led detailed design. Gabe has a particular interest in building performance and passive design strategies.

Having worked for a major architectural software company he also looks after Collaborative Architecture’s BIM process and ensures that we use our software in the most efficient way. As the office’s IT guru he’s also responsible for keeping our computers running.

Andrea Krejcik

Intermediate Designer

Andrea is designer who has worked at international offices in Toronto,  Seattle, San Francisco, and Honolulu. Her work has focused on hospitality, boutique hotel and custom residential design with a passion for sustainable integration. Having a love for nature, Andrea always looks for ways to thoughtfully combine the natural world into our built environment, creating healthier uplifting spaces for all.

Being a graduate from the University of Waterloo and having worked in diverse architectural environments, Andrea is passionate to share her design knowledge and architectural problem solving skills in creating beautiful, sustainable and energy efficient spaces. 

Myfanwy Cappel

Office Manager

Myfanwy joined Collaborative Architecture in 2021 as an administrative assistant. Having finished her Bachelor of Arts in 2020 she was happy to join the team and put her organizational talents to use. 

Myfanwy helps behind the scenes at Collaborative Architecture to ensure that the company runs smoothly as it can. She has learned a lot about architecture and what green design means to her personally. Myfanwy is excited to continue to learn about architecture and the environment as she works at Collaborative Architecture.

Jade Branker

Co-op Architecture Student

After completing her third year studying Architectural Science at Toronto Metropolitan University, previously known as Ryerson University, Jade joined the team at Collaborative Architecture in 2023. Her interests mainly consist of sustainability and the environment, with goals to continue working in an industry relating to building science, accessibility, community and sustainable architecture.

At Collaborative Architecture she uses her graphic and design software knowledge to support Collaborative Architecture’s team, and is excited to continue learning about green design and healthy sustainable alternatives.

Dan Malka, OAA

Architect & Senior Designer

Dan began working with Collaborative in 2022, bringing experience in institutional, multi-unit residential, and transit related design. Working with diverse stakeholder groups through a range of procurement models he has successfully navigated complex projects through design, approval, coordination, and construction processes.

Dan is a licensed architect in Ontario who employs a wholistic approach to sustainable design that transcends material considerations in value of community building. He completed his master’s degree at The University of Waterloo, exploring the role of computational design in disaster relief, and he also works as a firefighter.

Can you see yourself on our team?

Check out our Careers page to see if we’re hiring!