Home Additions Mississauga

Full-Service Home Addition Design & Build

Sunnylea Homes is an award-winning, family-owned design-build company specializing in premium home additions in Mississauga and the Greater Toronto Area. Led by Geno and Marino Scopelleti, our experienced team brings over 35 years of renovation experience, thoughtful architectural design, and quality workmanship to every project.

Whether you’re expanding your kitchen, adding extra bedrooms, or planning a second-storey addition, we handle everything from design and planning to construction and finishing touches. Our home addition services include rear extensions, second-floor additions, and custom home additions that blend seamlessly with your existing home.

We work closely with Mississauga homeowners to create beautiful, functional living spaces that reflect their personal style and growing family’s needs.

Ready to expand your home? Call Sunnylea Homes at (437) 494-0068 to schedule a free consultation.

Trusted By Homeowners

Our Home Addition Design-Build Process

1. Design Consultation

We begin with a personal consultation to understand your property, goals, style, and budget. Geno, Marino, and the Sunnylea team review your existing home, discuss your ideas, and explore home addition options that complement your lifestyle and available space.

2. Planning, Layouts & Selections

Our design team develops a functional layout that connects your new space with your existing home. We guide you through architectural plans, room configurations, materials, flooring, lighting, and finishes to create a cohesive design that feels like a natural extension of your house.

3. Permits, Drawings & Approvals

We coordinate the architectural drawings, engineering, and building permit applications required for your home addition. Our team reviews applicable Mississauga zoning regulations, structural requirements, and Ontario Building Code standards to help ensure your project is properly planned and approved before construction begins.

4. Scheduling, Ordering & Site Preparation

Before construction begins, we coordinate contractors, order materials, confirm measurements, and prepare your property. Careful planning and early material selections help keep your home addition project organized while minimizing disruption to your family's daily life.

5. Construction & Detailed Finishing

Our skilled team brings your home addition to life with quality workmanship, clear communication, and attention to detail. From foundations and framing to roofing, plumbing, electrical work, and final finishes, we manage the construction process through completion and the final walkthrough.

Testimonials

Schedule A Free Consultation

Create the additional space your family needs with a custom home addition from Sunnylea Homes.

Call (416) 789-5229 or request a free consultation to discuss your Toronto home addition.

Trusted by homeowners with 5-star ratings across Google and Houzz.

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Frequently Asked Questions

How Much Does a Home Addition Cost in Mississauga?

Home addition costs in Mississauga depend on the size, design, materials, and structural requirements. Published local contractor estimates suggest approximately CAD $375–$700 per square foot for some additions, although actual costs vary significantly by project.

Home additions typically take several months, depending on the project scope, permit approvals, and construction requirements. Larger projects involving structural changes or second-storey additions may take longer. Our team develops a realistic timeline during planning and coordinates each construction stage through completion.

Our home addition services include rear extensions, room additions, kitchen expansions, primary suite additions, and second-storey additions. Whether you need extra bedrooms, a home office, or a larger living space, we help create a custom home addition that complements your existing house.

Yes. The City of Mississauga requires a building permit for additions to existing homes. Projects must also comply with applicable zoning regulations and the Ontario Building Code. Sunnylea Homes helps coordinate architectural drawings, engineering, permit applications, and necessary approvals before construction begins.

Yes, provided your existing structure and applicable zoning regulations allow it. Second-storey additions can create additional bedrooms, bathrooms, or living space without reducing your backyard. Our design-build team reviews your home's structural capacity and coordinates the required engineering and approvals.

Mississauga zoning regulations determine how much of your lot can be covered, how close an addition can be to property lines, and permitted building heights. If your proposed addition doesn't comply, a minor variance may be required. Approval is not guaranteed. Our team reviews these requirements during planning.

Depending on the scope of your home addition, you may be able to remain in your home during certain construction stages. Major structural changes or extensive interior work may require temporary arrangements. We'll discuss the expected disruption and construction schedule during the planning process.

Sunnylea Homes is an award-winning, family-owned design-build company with over 35 years of renovation experience. Led by Geno and Marino Scopelleti, we provide thoughtful design, quality craftsmanship, and hands-on project management. We offer a free consultation, a transparent renovation process, and a two-year workmanship warranty.