OUR FIRM

xL Architecture & Modular Design (XLA) is an innovative architecture firm redefining the future of building through off-site construction technologies. With expertise in volumetric modular designs, and panelized building systems, we create cutting-edge solutions that seamlessly integrate form, function, and sustainability.

Our mission is to deliver modular design excellence that enhances the way people live, work, and connect with their surroundings. From customizable ADU products to multi-residential developments, we collaborate with clients and partners to craft efficient, scalable, and impactful spaces. Operating across Ontario and beyond, XLA is at the forefront of a design revolution, shaping smarter and more adaptable built environments.

OUR TEAM

Founder, Architect

Eisa Jieun Lee,
AAA, OAA, CPHD, RHFAC Professional

Eisa specializes in modular architectural designs, focusing on multi-residential and affordable housing projects. A graduate of the University of Waterloo School of Architecture, she brings over a decade of experience across various sectors, including retail, commercial, institutional, and custom residential projects, demonstrating her versatility and deep industry knowledge.

With a strong foundation in both design and fabrication, Eisa offers a holistic perspective on modular construction. Her expertise in Design for Manufacture and Assembly (DfMA) enables her to streamline projects from initial concept through production, ensuring efficiency and precision.

As an RHFAC Professional, Eisa is dedicated to designing inclusive spaces that balance accessibility requirements with the unique demands of modular manufacturing. Additionally, as a Certified Passive House Designer, she actively integrates sustainability into her projects, blending Passive House principles with broader environmental and energy-efficient initiatives to create innovative, high-performance buildings.

Have an idea? Let's chat!

Connect with Eisa on LinkedIn

Co-Founder, Modular DfMA Specialist

Jayden Lee

Jayden is all about the custom details. After graduating with Bachelor of Architecture back in South Korea, he started his professional career right here in Toronto.

He has worked on various experimental projects at Philip Beesley Architect, his first custom detail designs at Design It Mill, and then modular buildings at Z Modular — Jayden was there at the very beginning where architecture started at Z Modular.

As the walking modular library at XLA, there is no detail that Jayden cannot solve, whether it’s steel or wood modular construction.

If you don’t know how to solve your details, go ask Jayden!

Connect with Jayden on LinkedIn