ADU Construction & Secondary Suite Builders
Looking to build a legal secondary suite or custom ADU (Accessory Dwelling Unit) in Elora, Fergus, or surrounding areas? LUMA Build Design specializes in designing and building fully code-compliant secondary units that add flexible living space and long-term value to your property. Whether you’re planning a detached garden suite, basement apartment, in-law unit, or garage conversion, we guide you through every step — from permits and zoning to construction and final finishes.
Homeowners across Guelph, Kitchener, Waterloo, Elmira, and Drayton trust us for high-quality ADU construction that meets Ontario’s building code and suits their unique needs. Our team combines smart design, efficient use of space, and expert craftsmanship to deliver secondary suites that are private, functional, and built to last.
LUMA Build Design is your local contractor for ADUs and secondary suites — whether you're building for family, rental income, or added flexibility on your property.
Custom ADUs & Secondary Suites
Create flexible living space or income potential with a custom-built ADU or secondary suite by LUMA Build Design. We specialize in designing and constructing legal, self-contained secondary units that meet Ontario building code and local zoning requirements. Whether you need a basement apartment, a detached garden suite, or a garage conversion, we deliver functional, beautiful spaces tailored to your property.
We offer:
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Basement apartment construction with separate entrances and full kitchens
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Detached ADU builds like backyard suites, garden homes, and laneway houses
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Garage-to-suite conversions with full structural and interior upgrades
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Fully code-compliant construction, including fire separation, HVAC, and soundproofing
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Smart design that maximizes space, privacy, and livability
From planning and permits to finishes and final inspections, our team makes building your ADU or secondary suite stress-free, efficient, and rewarding.
Your Local ADU Builder in Elora, Fergus, Guelph & Beyond
At LUMA Build Design, we know that adding a secondary suite is more than just a renovation — it’s an investment in lifestyle, family, and property value. Whether you're building a legal rental unit, a private in-law suite, or a guesthouse, we combine practical layout planning with high-end finishes and seamless integration into your existing home or lot.
We’ve delivered ADU and secondary suite projects across Muskoka, Elora, Port Elgin, Guelph, and Kitchener-Waterloo — always with the same focus: custom design, code-compliant construction, and lasting quality.
Every project is carefully built to blend privacy, accessibility, and comfort, while meeting all provincial regulations.
Let us help you unlock the potential of your property with a custom ADU or secondary suite, designed to fit your needs today and well into the future.
ADU & Secondary Suite Builders Near You
Searching for a trusted ADU builder or secondary suite contractor in Elora, Fergus, Guelph, or nearby? At LUMA Build Design, we specialize in custom accessory dwelling units and legal secondary suites — including basement apartments, detached backyard suites, and garage conversions that meet Ontario’s building code and zoning requirements.
Serving homeowners in Elora, Fergus, Guelph, Cambridge, Kitchener-Waterloo, and beyond, our team combines smart design, efficient planning, and high-quality construction to create flexible living spaces that work for families, rentals, or guests.
✨ Book your free consultation today and see how LUMA Build Design can help you add value, income potential, and living space with a professionally built ADU or secondary suite.
Why Choose LUMA Build Design for ADUs & Secondary Suites?
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Local Expertise: Proudly serving Elora, Fergus, Guelph, Kitchener, Waterloo, Elmira, Drayton, and Arthur, we bring years of hands-on experience building legal secondary suites and custom ADUs — including basement apartments, detached garden suites, and garage conversions — all fully compliant with Ontario’s building and zoning regulations.
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Smart Design & Craftsmanship: We focus on maximizing every square foot with well-planned layouts, privacy, and premium finishes. Whether it’s a modern in-law suite or a private rental unit, we create secondary living spaces that are as functional as they are beautiful.
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Hassle-Free Process: We manage the full scope — including design, permit approvals, zoning reviews, and construction — so you can focus on the outcome, not the paperwork. Our clients count on us for clear communication and smooth project delivery.
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Long-Term Value: A professionally built ADU or secondary suite adds long-term flexibility and property value. Whether you're building for rental income, multi-generational living, or future resale, we ensure your investment is built to last.
Frequently Asked Questions
Q: Do you build legal secondary suites or basement apartments in Ontario?
Yes — we specialize in legal secondary suite construction across Ontario, including basement apartments with separate entrances, full kitchens, and code-compliant fire separation and soundproofing. Our team handles everything from zoning review to final inspection.
Q: Can you build a detached ADU or backyard garden suite?
Absolutely. We design and build detached accessory dwelling units (ADUs), including backyard suites, laneway homes, and garden cottages. These custom-built structures are perfect for rental income, guest space, or aging-in-place family use.
Q: What areas do you serve for ADU and secondary suite construction?
We build ADUs and secondary suites in Guelph, Kitchener, Waterloo, Elora, Fergus, Elmira, Drayton, Arthur, and surrounding Southern Ontario communities.
Q: Can you convert an existing garage into a livable rental unit?
Yes — we offer garage conversion services to turn existing structures into fully functional secondary suites. These projects are designed to meet Ontario Building Code and local bylaws while maximizing livable space.
Q: Do you help with permits and zoning for ADUs in Ontario?
Yes. Our team manages the entire process, including site planning, zoning research, permit applications, and design approvals. We ensure every secondary unit or ADU is legally built and fully compliant with all local and provincial requirements.
Q: Are your ADUs and suites designed for multi-generational living or rentals?
Both. Whether you're building a private in-law suite, multigenerational family space, or a legal rental unit for passive income, our designs are flexible, comfortable, and built to code — with privacy and practicality in mind.