Worker constructing a wooden frame for a new home addition.

Top Rated Home Additions in Etobicoke

Since 2008, Built By Pros Inc. has been providing homeowners in Etobicoke with high-quality and reliable home additions. Whether you are looking for a rear extension in Mimico or a full house addition in the established avenues of The Kingsway, our team brings nearly two decades of local expertise to every project. We understand that an Etobicoke home addition is more than just adding square footage; it is about enhancing your lifestyle while protecting your largest financial investment. By integrating architectural design with master-class construction, we ensure that new house extensions blend perfectly with the existing character of your property. Our full-service approach handles everything from initial custom floor plan design to the final paint stroke. When planning a home addition, homeowners often face the challenge of navigating complex municipal requirements. Our team streamlines this by managing all permit acquisition and coordinating with City of Toronto building inspectors. According to local industry experts, a strategically designed addition can increase living space and improve flow, and even raise property values by as much as 20% in competitive neighborhoods like Humber Bay. We pride ourselves on transparent communication, ensuring you understand every phase of the project from demolition to the final structural inspection. Beyond simply adding rooms, we focus on the long-term utility of your home. This includes considering modern needs such as home offices, multi-generational living suites, or expanded kitchen areas that serve as the heart of the home. Our Site Supervisors, including Bastian Zuniga and Marco Lopez, maintain rigorous standards on every job site, ensuring that the construction phase is as non-intrusive as possible. We utilize premium materials and follow the Ontario Building Code strictly to ensure safety and longevity. By working with a local Etobicoke contractor who understands regional architectural styles, you can avoid the common pitfalls of additions that look like 'tacked-on' boxes, opting instead for a seamless, valuable asset.
Modern wood staircase leading to a newly added second floor.

Second Storey Additions

A second storey addition is one of the most effective ways to double your living space without sacrificing your beautiful lawn or garden in Etobicoke. In areas where lot coverage is restricted by zoning, vertical expansion allows you to transform a bungalow into a spacious two-storey family home. We specialize in BCIN-certified design and engineering to ensure that your existing foundation can handle the additional load. This structural assessment is critical, as older homes in residential pockets like Rexdale often require reinforcement of the footings or main walls before the second floor can be safely installed. Adding a second level typically involves a complete rethink of your home's layout. We often see clients moving all bedrooms to the new upper floor, allowing the main level to be converted into an open-concept living and dining area. This process usually takes between 3 to 6 months depending on complexity, as noted by MBC Homes. During this time, our project management team oversees every trade, from plumbing and electrical rough-ins to HVAC extensions and interior finishing. We ensure that the new stairs are integrated naturally into the existing floor plan, maintaining a logical flow between the old and new sections of the house. From a financial perspective, a second storey addition is a significant investment, often ranging from $200,000 to over $400,000. However, in the high-demand Etobicoke real estate market, the return on investment can be substantial. Our design team, led by Suzanne Morgan, focuses on selecting finishes that reflect your personal style while adhering to timeless architectural principles. We handle all the 'heavy lifting' of the construction, including the removal of the existing roof and the rapid enclosure of the new structure to protect your home from Ontario's unpredictable weather. By choosing a dedicated team like Built By Pros, you ensure that the complexity of a vertical expansion is managed with precision and professionalism.
Finished rear addition overlooking a beautifully landscaped yard.

Rear Additions and Extensions

Rear additions and extensions are the gold standard for homeowners in Etobicoke looking to create the ultimate open-concept kitchen or family room. A rear extension typically involves extending the back of the house toward the yard, creating a massive new living area that often features large glass doors or cathedral ceilings. These projects, often referred to as 'bump-outs,' are perfect for creating that seamless indoor-outdoor transition that is so popular in modern Etobicoke designs. We work closely with our clients to determine if a full foundation or a crawlspace is the best structural choice for their rear extension, always prioritizing moisture protection and thermal efficiency. Our approach to rear extensions involves a deep understanding of Etobicoke's specific landscaping and drainage bylaws. Because a rear addition increases the 'footprint' of the building, we must ensure that rainwater runoff is correctly managed and that we remain within the setback requirements of the local zoning code. CCS Group highlights that integrated planning from the start is the only way to avoid costly delays at the municipal level. We handle the submission of site plans and work with structural engineers to ensure that the transition between the old and new rooflines is watertight and aesthetically pleasing. This level of detail is why our projects in neighborhoods like Humber Bay stand out for their quality and durability. When you opt for a rear addition, you are usually looking to solve a space problem in the most impactful way possible. Whether it's adding a mudroom, an extra bathroom, or expanding the kitchen for a growing family, these extensions provide immediate relief to cramped living quarters. The typical cost for these projects varies widely, but most high-end extensions fall into the $150,000 to $300,000 range. Our team ensures that your project remains on budget by provide fixed-cost contracts once the design is finalized. We manage every aspect of the build, from the initial excavation to the installation of high-efficiency windows and doors, providing a turnkey solution for your home's transformation.
Work team assessing structural integrity in an older Etobicoke home.

Local Considerations for Etobicoke Construction

Undertaking a home addition in Etobicoke requires careful navigation of unique local variables. The primary concern for most homeowners is the City of Toronto's zoning bylaws, which dictate everything from the distance your addition must be from the property line (setbacks) to the maximum percentage of your lot that can be covered by a building. In established neighborhoods like The Kingsway, there are often heritage considerations or specific design guidelines aimed at preserving the historical character of the streets. Our team is well-versed in the 'Committee of Adjustment' process, which is often required if your proposed addition requires a minor variance from the standard bylaws. Climate factors also play a massive role in Etobicoke home additions. Given our harsh winters and humid summers, insulation and building envelope integrity are paramount. We utilize modern building science to ensure that your new extension is easy to heat and cool, preventing common issues like ice damming on the roof or condensation in the walls. Additionally, many parts of Etobicoke, especially those near Mimico or the Humber River, have varying soil conditions that may require specialized footings. We conduct thorough site assessments to determine the best foundation strategy, ensuring your new structure won't shift or crack over time. The proximity to the lake in Humber Bay can also mean increased wind loads, which we account for in our structural engineering designs. Finally, managing the housing stock in Etobicoke requires a nuanced approach. Many homes in areas like Rexdale were built in the mid-20th century, meaning they may contain older electrical systems or plumbing that needs to be upgraded as part of a major addition. We perform comprehensive 'pre-construction' audits to identify these issues before they become expensive surprises. By choosing a contractor like Built By Pros, you are benefiting from 15+ years of experience working specifically with these Ontario home types. We know how to marry 1950s masonry with 21st-century framing, creating a cohesive and safe structure that will last for generations.
High-end kitchen finish in a multi-million dollar addition.

Pricing Factors and Budgeting in Etobicoke

Budgeting for a home addition in Etobicoke requires an understanding of several local cost drivers. Generally, you can expect to pay between $200 and $400 per square foot for a high-quality renovation, with total project costs often landing between $150,000 and $450,000 depending on the scope and number of storeys. Permit costs alone in the City of Toronto can run several thousand dollars, including fees for building permits, HVAC permits, and plumbing permits. Additionally, if your project requires a minor variance through the Committee of Adjustment, you should budget for both application fees and the time required for the public hearing process. Material availability and logistics also impact pricing in the GTA. Because we have established relationships with local suppliers, we are often able to secure competitive pricing on lumber, windows, and high-end finishes. However, seasonal pricing fluctuations can occur, which is why we recommend locking in contracts during the fall or winter for spring starts. For projects in high-density areas like Humber Bay, logistics and site access can also add to the labor cost. If we have limited space for material storage or machinery, it requires more manual labor and careful scheduling. We provide transparent, itemized quotes so you know exactly where every dollar is going, avoiding the 'vague estimates' that often lead to budget overruns with less experienced contractors. Finally, the choice of interior finishes significantly influences the final price tag. While the 'shell' of the addition has a relatively fixed cost based on engineering and building codes, the sky is the limit for kitchens and bathrooms. We help you balance your budget by suggesting 'high-impact' areas where premium materials (like quartz countertops or custom cabinetry) make the most sense, while finding cost-effective solutions for laundry rooms or guest bedrooms. Our goal is to ensure that your home addition doesn't just add space, but adds the maximum possible value to your property at a price point that makes sense for the Etobicoke market.

Neighborhoods We Serve

Proud to serve communities throughout Etobicoke, ON

Humber Baylakeside community with modern high-rise condos and waterfront trails
The Kingswayprestigious enclave with heritage homes and leafy avenues
Mimicoestablished waterfront neighborhood popular with families
Rexdaleaccessible residential area with diverse housing options

Licensed & Insured

Every Etobicoke project is covered by our comprehensive $5 million liability insurance and WSIB certification. This protects your property and our workers throughout the entire duration of the house addition. You can rest easy knowing that we assume full responsibility for safety and compliance on your job site.

Permit Management

We handle the entire maze of City of Toronto permit applications, including zoning reviews and Committee of Adjustment hearings. Our deep understanding of Etobicoke-specific bylaws means we catch potential issues before they cause delays. We ensure every phase of your project passes the required inspections seamlessly.

Design-Build Excellence

Our integrated approach means your designers and builders are on the same team from day one. This eliminates the disconnect often found between blueprints and actual construction, preventing costly middle-of-project changes. We ensure that the final result in your Etobicoke home looks exactly like the high-resolution 3D renders you approved.

Our Process

1

Design & Zoning Analysis

We begin by analyzing your property's specific zoning in Etobicoke to determine exactly what the City of Toronto will allow. Our designers then create custom floor plans that maximize your space while ensuring code compliance, preventing future legal issues.

2

Engineering & Permits

Once you approve the design, we coordinate with structural engineers to ensure your existing foundation can support the new load. We then submit all required plans to the municipal building department and manage all follow-up questions to secure your permits.

3

Structural Phase

Our veteran crew handles the 'heavy lifting,' including excavation, foundation pouring, and structural framing. We prioritize getting the addition 'weather-tight' as quickly as possible to protect your home's interior from the elements.

4

Finishing & Handover

After all mechanical systems (plumbing, HVAC, electrical) pass inspection, we move to drywall, flooring, and custom cabinetry. We conclude the project with a final walkthrough and provide you with all warranty documents and municipal closure papers.

Frequently Asked Questions

  • Yes, virtually all home additions in Etobicoke require a building permit from the City of Toronto. This includes rear extensions, second-storey additions, and even smaller 'bump-outs' that change the exterior footprint or structural load of the building. We handle the entire application process, including architectural drawings and structural engineering sign-offs, to ensure your project is 100% legal and compliant.

  • In the Etobicoke area, a full second-storey addition typically costs between $200,000 and $450,000 depending on the size of the home and the quality of interior finishes. This price range covers the structural reinforcement of the existing main floor, the new staircase, all framing, windows, roofing, and full interior finishing. We provide a guaranteed fixed price once the design and material selections are finalized.

  • A standard rear extension usually takes between 3 to 4 months, while a more complex second-storey addition can take 5 to 6 months. These timelines include everything from site preparation and foundation work to the final mechanical trim and painting. We provide our clients with a week-by-week schedule through our project management portal so you always know which trades will be on-site.

  • For smaller rear extensions, it is often possible to remain in the home, although there will be noise and dust during the day. However, for a second-storey addition or a whole-home renovation, we strongly recommend that homeowners find alternative housing for at least part of the project. This is because the roof must be removed and major utilities are often disconnected for several weeks.

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Our Services

Custom Home Rebuilds

Complete home or commercial rebuilds to give you a new structure, keeping only what can be re-purposed to save cost and the environment.

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Home Renovations

Upgrade existing spaces with quality craftsmanship to better meet the needs of your family.

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Home Additions

Whether at your home or business, we provide zoning and permitting services as part of our planning process.

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Commercial Renovation

Full-service construction for commercial projects. Let our in house design team elevate your brand with custom space design.

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Multiplex Conversions

Custom solutions to maximize the return on your property investment.

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Aging in Place Renovations

We have the ADA design training in house to ensure your home is ready for your golden years , even when your are not.

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Areas Served

Toronto, ONServing your area
Vaughan, ONServing your area
Scarborough, ONServing your area
North York, ONServing your area
Richmond Hill, ONServing your area
Mississauga, ONServing your area
Etobicoke, ONServing your area
Markham, ONServing your area
Brampton, ONServing your area
East York, ONServing your area
Oakville, ONServing your area

Sarah T. from Mimico

Built By Pros completed a massive 800 sq ft rear addition for us in Mimico last year. They took care of everything from the architectural drawings to the final landscaping, and the project was finished in exactly 5 months. We finally have the chef's kitchen we always dreamed of, and the way they matched the new brick to our 1940s original house is incredible. Their supervisor, Marco, was on-site every morning and kept us updated through every single inspection.

James L. from The Kingsway

We hired Ricardo and Suzanne to add a second storey to our bungalow in The Kingsway. The design phase was so helpful; they actually listened to our needs for a home office and three bedrooms upper deck. Despite some tricky zoning hurdles with the city, they managed to get our permits in record time. The quality of the woodworking on our new staircase is remarkable, and the team was incredibly respectful of our neighbors throughout the four-month build.

Elena G. from Humber Bay

After interviewing four contractors, we chose Built By Pros for our house extension in Humber Bay. They weren't the cheapest, but their itemized quote and clear process gave us the most confidence. They added a beautiful sunroom and expanded our living area to include a custom home bar. The project stayed perfectly on budget, and the lifetime warranty they offer on their workmanship really gives us peace of mind for the long term.

Our Experts

A headshot of Manager of Operations, the Ricardo Lora of Built by Pros Inc.

Manager of Operations

Ricardo Lora

A headshot of Manager of Design and Sales, the Suzanne Morgan of Built by Pros Inc.

Manager of Design and Sales

Suzanne Morgan

A headshot of Interior Designer, the Petra Tobias of Built by Pros Inc.

Interior Designer

Petra Tobias

A headshot of Team, the Stronger Together of Built by Pros Inc.

Team

Stronger Together

A headshot of Site Supervisor, the Bastian Zuniga of Built by Pros Inc.

Site Supervisor

Bastian Zuniga

A headshot of Site Supervisor, the Marco Lopez of Built by Pros Inc.

Site Supervisor

Marco Lopez

Get in Touch

Contact us for unmatched expertise in home renovations. With experience since 2008, we deliver top-quality materials and superior workmanship—trusted by clients and built on referrals.

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