Timeless interiors rooted in nature and shaped by our travels.
Leah Simpson Design is an interior design studio creating elevated, inviting cottages, chalets, and year-round homes across Georgian Bay and beyond. With a commitment to natural materials, refined craftsmanship, and character-rich details, we support clients through every stage of the design and build journey.
Our
Portfolio
Our Studio
We’re a small team of design-obsessed problem solvers who bring warmth, enthusiasm, and a little fun to every project. Led by founder and principal designer Leah Simpson, our signature style blends clean, modern lines with timeworn antiques, natural textures, and character-rich architectural details.
We take on a select number of projects each year, ensuring every home receives the level of care, attention, and craftsmanship we’d devote to our own. Whether we’re on site with trades or refining the smallest detail behind the scenes, your project matters deeply to us.
We believe great design comes from understanding your life—what you value, how you live, and the stories you bring home.
Our Approach
Based in Collingwood, we specialize in designing lakeside cottages and mountainside chalets that feel deeply connected to their landscape.
Our approach is rooted in biophilic design and shaped by local materials, craftsmanship, and layered details that bring warmth and soul to every space. We collaborate closely with trusted builders, architects, and artisans to create spaces that feel quietly luxurious and thoughtfully tailored.
With a focus on full-service interior design, we guide you through every step—ensuring the way you live and what you love informs each decision throughout the design and build journey. Our holistic process allows us to manage both the technical and creative complexities, so you can enjoy the experience as your dream home comes to life.
Need a little guidance?
Our one-on-one consultations offer accessible, expert guidance for any stage of your project—helping you make thoughtful decisions with confidence.
Available online or in-person.
Design Diary
If you’ve ever stepped into a space and felt yourself exhale, it’s often because of natural warmth—sunlight, texture, and materials that feel grounded. This article shares how we use those elements in our designs and why they make such a difference in how you feel.
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