If you love your home but need more space, a thoughtfully designed addition can transform how you live, without the stress of moving. From growing families to modern lifestyle upgrades, a home addition is one of the best ways to create the space you need while increasing your property’s long-term value.
In Toronto and across the GTA, homeowners often ask: What does a home addition cost — and how do I plan for it? According to recent insights from the Canada Mortgage and Housing Corporation (CMHC), renovation investments like additions continue to be one of the most reliable ways to increase a home’s long-term value.
At Golden Bee Homes, we believe in clarity and collaboration from day one. Here’s what to know about the investment, the factors that shape it, and how our design-build approach keeps your goals — and your budget — aligned every step of the way.
No two additions are the same, and that’s what makes them exciting. Whether you’re adding a second storey, expanding a kitchen, or creating a new primary suite, the cost depends on size, structure, and finish level.
Here are the main factors that influence cost in Toronto and the GTA:
Larger or multi-level additions require more labour and materials, but also deliver greater value and function.
Architectural details, vaulted ceilings, and integrated layouts may add cost but dramatically enhance flow and aesthetics.
Every municipality has its own requirements, and Golden Bee Homes manages these approvals for you. In Toronto, homeowners must apply for permits through the City of Toronto Building Permits portal, which outlines the specific zoning bylaws and building code requirements for residential additions.
As of January 2025, the Ontario Building Code underwent the largest update in its history, incorporating nearly 2,000 changes to improve sustainability, accessibility, and safety. Our team stays current with all code changes to ensure your project meets, and often exceeds, the latest provincial and municipal requirements before construction begins.
The beauty of a custom addition is choice — from flooring and cabinetry to windows and exterior materials.
In general, home additions in Toronto start from approximately $350 per sq. ft., depending on structure, design complexity, and finish level.
Every project varies in scope, but here’s how that investment typically applies across the most common types of additions:
Perfect for growing families or homeowners who want more open-concept space, a main-floor addition often extends living areas, kitchens, or dining rooms.
A powerful way to double your living space without sacrificing yard area. Ideal for new bedrooms, a primary suite, or a dedicated office level.
Popular in Toronto’s established neighbourhoods, adding light-filled kitchens, family rooms, or sunrooms while maintaining exterior character.
Unlocking height or extra space below grade through underpinning and foundation work. Finished lower levels can rival main-floor quality for suites or entertainment areas.
At Golden Bee Homes, we understand that a home addition is both a financial and emotional investment. Our design-build model keeps everything — design, permitting, and construction — under one roof. The result? A streamlined process, accurate pricing, and peace of mind.
Our in-house architects, designers, and construction team work together from concept to completion. That means no miscommunication, fewer markups, and a cohesive vision brought to life.
Every estimate is itemized, from foundation work to finishes, so you can see exactly where your investment goes — and adjust as you wish before work begins.
Because every family and home is unique, we design additions that fit your daily routines, reflect your aesthetic, and enhance your long-term comfort and value.
We start with an in-home consultation to understand your goals, explore design ideas, and create an initial plan that fits your budget.
You’ll collaborate with our design team to fine-tune layouts, finishes, and pricing before any work begins.
Once approved, we manage construction, permitting, and coordination — keeping you informed with weekly updates and access to our client portal.
From concept to completion, our goal is simple: to make your home addition experience seamless, transparent, and inspiring.
A well-designed addition doesn’t just add square footage — it adds comfort, flexibility, and value that lasts for years to come. And with Golden Bee Homes’ transparent, fixed-price approach, you’ll know your full project cost before demolition begins, giving you clarity and confidence from day one.
Whether you’re looking to create more space for your family life or elevate your home with modern design, our award-winning team is here to help.
Book a Free Consultation with Golden Bee Homes to explore what’s possible for your home.
A: Home additions start from $350 per sq. ft., depending on structure, finishes, and complexity.
A: Absolutely — it’s one of the most efficient ways to add major living space in Toronto’s compact neighbourhoods, often with excellent return on investment.
A: Yes, and we handle that process for you. Toronto’s addition permits are calculated per square metre, with timelines typically ranging from two to four weeks.
A: Most additions take 4–8 months depending on size and season. Our team builds a realistic schedule before starting, so there are no surprises.