A woman and a man with sunglasses are standing outside a building with black columns, holding coffee cups on a sunny day.
Two people standing in front of a brick and stone building with arched entryways and red doors.
Architectural drawing of a modern house with multiple levels, large windows, balconies, and a car parked outside, rendered in pink hues.

Felix Culpa Architecture is a full-service architecture firm specializing in custom luxury homes, commercial real estate, and multi-unit developments. Based in Windsor, Ontario, we serve clients across Southwestern Ontario—including London and Toronto—as well as Detroit and Southeast Michigan.

Our work is defined by clarity, precision, and a deep understanding of how architecture performs over time. From bespoke custom homes to large-scale development projects, we create spaces that balance design, functionality, and long-term value.

We work closely with homeowners, developers, and investors to guide each project from concept through construction—delivering a seamless, collaborative experience. Inspired by clean, modern design and Detroit’s industrial character, our architecture integrates indoor and outdoor living with intention and restraint.

Brad Smith, the Principal Architect, is an expert in building dreams.

Having transformed himself from a toolmaker to an architect, Brad's experience has taught him the importance of being honest and transparent while taking a hands-on approach.

Understanding the process of creating and assembling things is crucial when designing innovative, functional, sustainable homes, buildings, and spaces.

A man wearing sunglasses, a black Nike T-shirt, black pants, and sneakers standing in front of an open wooden door on a white brick building during daytime.

An architect's role extends beyond providing a service.

We aim to cultivate relationships that foster exceptional design.

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  • “It is our pleasure to recommend Brad Smith of Felix Culpa Architecture. We immediately connected with Brad on our first meeting. He is a very organized, creative and a thoughtful young architect. Our meetings were always timely and constructive. Brad was always responsive to our thoughts, ideas, and questions. He is well-versed with variance and code issues and was very willing to collaborate with our contractor. Brad has ultimately designed a beautiful house for us! If you are contemplating a build of any kind, Brad will deliver with enthusiasm, knowledge and style."

    Greg & Debbie Hasen, Google

  • “Finally, we found an architect that understood us! We had spent thousands of dollars and worked with several architects to just render us concepts of our Mid-Century home extension. One was good (just too minimalist) and the rest were absolutely horrific! We truly gave up and just accepted we would never find an architect that could capture our vision...Then we found Brad.We absolutely loved this collaborative experience!!! Brad brings an artistic mind to a very mathematical discipline. He completely captured our vision of combining Mid Century with modern. Finding someone who is both creative, artistic and meticulous, is NEXT TO IMPOSSIBLE. Trust me, we looked for a very long time.Always responsive, professional and really darn good at what he does. I don't know what more I can say, other than this is the longest review I have ever written. If you have a cool project and are struggling to find an architect that understands your vision…do yourself a HUGE favour and hire Felix Culpa!”

    Theo Rallis, Google

  • "We had the opportunity to work with Brad on a major renovation project we undertook. He is wonderful to work with in every way! Responsive, professional, creative, resourceful, he was truly a fantastic partner for us on our project. Brad is approachable yet worldly, a great listener and an effective communicator. We would highly recommend him to anyone looking for an architect in Windsor-Essex!"

    Matt Biggley, Google

  • "I have used this firm on two projects to date with a third one starting soon. These projects have been in Canada and Bahamas. Brad has an excellent ability to see the big picture of the project vision and deliver finished drawings on time. His work is far better than I had hoped for. I would highly recommend this firm."

    Ken Gascoigne, Google

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