Home Additions & Extensions in Arthur Ontario
Need more room but love your current home in Arthur? Luma Build Design specializes in well-planned home additions and secondary suites in Arthur, Ontario and the surrounding Wellington North area, including Mount Forest and nearby rural properties. Whether you’re dreaming of a larger family room, a brighter kitchen, an in-law or income suite, or a full second-storey addition, we combine thoughtful design with solid construction so your home works better for the way you live.
Full-Service Home Additions in Arthur Ontario
A well-designed home addition gives you more living space and a layout that actually fits how you live. In Arthur and the surrounding countryside, many homes are ready for smart, seamless additions—whether it’s opening up the main floor, adding bedrooms for a growing family, or creating a private suite for parents or adult children.
At Luma Build Design, we plan and build additions that look and feel like they’ve always been part of your home. We handle the details so your project runs smoothly from first sketch to final walk-through.
Why Build Your Home Addition With Luma Build Design?
We design and build:
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Family room and main-floor living area extensions
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Additional bedrooms and guest suites
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Home offices, studios and hobby rooms
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Second-storey and dormer additions
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Attached garages, mudrooms and entry expansions
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In-law suites and secondary suites (ADUs)
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Sunrooms and all-season rooms that connect to your yard
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Seamless tie-ins with your existing rooflines and finishes
Home Additon FAQs in Arthur
Q: How much does a home addition or garage cost in Arthur?
Costs depend on size, complexity and finishes, but here are very rough starting points for projects we commonly build in Arthur and Wellington North:
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Attached home additions: from $175,000+ for smaller one-storey additions, more for larger or two-storey projects
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Detached garages / workshops: usually $120,000+ depending on size, foundation and finishes
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Secondary suites / in-law units (ADUs): typically $220,000+ because of kitchens, bathrooms and separate services
After a site visit and concept discussion, we’ll provide a detailed budget range tailored to your Arthur property.
Q: Can you match my existing exterior so the addition fits my Arthur home?
Absolutely. We carefully match rooflines, siding, windows, trims and details so your addition looks original to the house—not like something tacked on later.
Q: Do you build second-storey additions?
Yes. We handle engineering, permits and construction for second-storey and dormer additions, including any required structural upgrades, new stairs, insulation and finished interiors.
Q: Do you handle all plumbing, electrical and HVAC work?
Yes. We coordinate all licensed trades and inspections so you have a single point of contact and the project meets Ontario Building Code requirements and local Wellington North standards.
Q: What areas do you serve from Arthur?
We build home additions and garages in Arthur, Mount Forest, Drayton, Alma and throughout Wellington North and nearby rural properties, as well as selected nearby Centre Wellington communities.
Q: What’s the best way to start a home addition in Arthur?
Reach out to book a free in-home consultation. We’ll visit your Arthur-area home, review your existing layout, talk through ideas and budget, and outline the next steps for design, permits and construction.