Home Additions & Extensions in WHITBY
Expand Your Whitby Home with a Purpose-Built Custom Addition
A home addition is one of the most practical ways Whitby homeowners can increase living space without the disruption of moving. Whether you’re planning a new room, extending your main level, adding a second storey, or building an addition that blends naturally with your existing structure, 905 Reno delivers custom solutions designed for comfort, efficiency, and long-term performance.
With Whitby’s growing communities, family-oriented neighbourhoods, and rising home values, a professionally built addition is a strategic investment that improves everyday functionality while increasing property value—without compromising your home’s original style.
Why Choose 905 Reno for Your Home Addition in Whitby?
905 Reno brings years of experience delivering high-quality home additions throughout Whitby and the GTA. Our team manages the entire project lifecycle—from design planning and engineering to permits, construction, and final detailing—ensuring a smooth and professional build from start to finish.
Whitby homeowners choose 905 Reno because we provide:
A complete design-build approach that keeps planning and construction fully coordinated
Full permit management and zoning support aligned with Whitby and Durham Region requirements
Quality workmanship focused on strength, detail, and long-term durability
Custom addition solutions designed around your home’s structure, layout, and architectural character
Premium materials and carefully selected finishes for a refined final result
Straightforward communication, clear pricing, and organized project management throughout the build
Our goal is to create an extension that adds meaningful space, improves functionality, and enhances how you experience your home.
Our Home Addition Process
We follow a clear, methodical process to ensure your Whitby home addition is completed safely, efficiently, and on schedule.
1. Consultation & Assessment
We begin by understanding your goals and reviewing your home’s layout, lot size, and structural capacity for expansion.
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2. Architectural Design & 3D Planning
Our design team creates tailored plans and 3D visuals that maximize usable space while maintaining architectural harmony.
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3. Permit & Zoning Support
Whitby is governed by municipal zoning bylaws and Ontario building regulations. We manage all drawings, submissions, revisions, and approvals to keep your project moving forward without delays.
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4. Construction & Build-Out
From foundation preparation and framing to electrical, plumbing, insulation, roofing, and interior finishes, our team delivers precise, high-quality construction at every stage.
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5. Final Inspection & Completion
We confirm that all work meets Ontario Building Code standards and your expectations before final completion.
Types of Home Additions We Build in Whitby
Every Whitby home is unique—from older neighbourhoods to newer developments—and our additions are tailored to your space, budget, and lifestyle needs.
Main-Floor Extensions
Expand kitchens, living rooms, dining spaces, or add new rooms to improve flow and functionality.
Second-Storey Additions
Add a full additional level with extra bedrooms, bathrooms, or a spacious primary suite—ideal for growing families in Whitby.
Rear & Side Additions
A practical solution for increasing square footage while improving access to outdoor areas.
Sunrooms & Four-Season Rooms
Bright, welcoming spaces designed for natural light and year-round enjoyment.
Garage Conversions & Additions
Convert or expand existing garages to create functional living or storage space.
Custom Room Additions
Including home offices, family rooms, playrooms, guest suites, entertainment areas, and home gyms.
No matter your vision, we help you expand your home in a way that improves both appearance and everyday usability.
Benefits of a Home Addition in Whitby
Expanding your home delivers lasting benefits, especially in Whitby’s steadily growing real estate market.
More Living Space
Create additional bedrooms, expand living areas, or design a dedicated home office without relocating.
Significant Property Value Increase
Whitby homes with professionally built additions often achieve strong returns when selling or refinancing.
Improved Lifestyle & Functionality
Enjoy a more comfortable, organized living environment designed around your lifestyle.
Stay in the Neighbourhood You Love
Instead of relocating, enhance your existing home and stay rooted in your community.
Serving Homeowners Across Whitby
We proudly build custom home additions throughout Whitby, including Brooklin, Downtown Whitby, Pringle Creek, Blue Grass Meadows, Taunton North, and surrounding neighbourhoods.
Our team understands Whitby’s housing styles, zoning requirements, and site conditions, ensuring every addition integrates seamlessly.
Ready to Expand Your Whitby Home?
Your ideal living space is within reach. Whether you’re planning a major expansion or a smaller room addition, 905 Reno delivers quality craftsmanship and a smooth renovation experience from start to finish.

