Transforming Commercial Spaces in Southern Ontario into Purposeful, Branded Environments
Design that elevates your business, inspires your team, and reflects who you truly are.
Commercial Interior Design
Residential Interior Design
Signature Services
Curated Style Boards to jumpstart your space design.
Clarity + direction in 90 minutes with an actionable game plan.
Your complete design direction – delivered in 30 business days.
Full-Scope Platinum Partnership
Ideal for business owners and developers building signature properties with purpose and precision.
With over 30 years of experience, Nancy Ernst-Lemmon is a registered ARIDO and IDC Interior Designer who has worked with Architects and boutique Interior Design studios in Brantford, Ontario, Simcoe, Ontario, Toronto, Ontario and Switzerland. Her expertise spans corporate, commercial, and now residential design, blending functionality with timeless style.
Jeff Lemmon combines design expertise with hands-on craftsmanship. A Durham College graduate, he has worked in boutique design studios in Toronto, Ontario and Switzerland before shifting his focus to construction. His ability to visualize projects from concept to completion—through 3D sketches and detailed execution—ensures seamless transformations.
Proudly Serving Southern Ontario Communities
At LemmonTree Design, we bring elevated, functional interior spaces to life across Southern Ontario. Based near Brantford, we proudly serve clients in:
Brant County — Brantford, Paris, St. George
Norfolk County — Waterford, Simcoe, Port Dover, Delhi, Jarvis
Surrounding Areas — Hamilton, Woodstock, and beyond
Whether you’re planning a residential transformation or a branded commercial space, we work closely with clients throughout these communities to design interiors that reflect purpose, personality, and place.
“I absolutely love my home! And I so appreciate your tips on placement of the furniture! I’m so pleased with how the living room has come together ! So THANK YOU!!!“
Amy B.
“I’m so thankful for all the hard work that went into making my new office such a cozy, adorable, and functional workspace! Your masterpieces never cease to amaze me!”
Tamille R.
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Serving Brantford, Norfolk County & Toronto area
@2025 LemmonTree Design. All Rights Reserved. Designed by Grace Design Creative
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