Home Additions & Second Storeys in Etobicoke
Create more room in the home you love. We coordinate design, engineering, permits and construction for additions and second-storey projects.
Finished Spaces Across the GTA
Explore our team's residential work, from kitchens and bathrooms to complete home transformations.
In The Media
Don't take our word for it! Built By Pros is honoured to be featured in these reputable publications. Have a look for yourself!
Meet Our Happy Clients
Hear directly from GTA homeowners who trusted us with their renovation.
Ashley HGoogle review
Read on GoogleWe recently completed a full home renovation plus addition with Built By Pros and we were so happy with our decision! We looked at many different companies and ultimately decided on Built By Pros after meeting with Ricardo and Suzanne and getting a good feeling from them right off the bat. They were very helpful and involved in every step of the process which gave us complete trust and confidence in them. They hold themselves to a high quality and customer service standard and it shows through their approach and their work.
The whole team was great to work with. The crew was friendly, respectful, helpful and went the extra mile to ensure all our requests were accommodated. The project was on budget and on time and we couldn’t have asked for a smoother process.
We have now moved into our new house and are loving our new space. If you’re looking to do a home reno, look no further than Built By Pros!
Paolo KorreGoogle review
Read on GoogleIncredible team to work with, exceptional quality of work!
We've just underwent a major home renovation - When you are taking on a project of this magnitude, you need to have trust in your partners, and the Built by Pros team earned our trust every step of the way. They worked tirelessly to get the job done on time, and to a high quality of finish. They were honest and open in their communications - which is so important when you are renovating a 100+ year old home and bound to discover some issue hidden behind dry wall. They were reasonable in their pricing - the team has a great designer and architect who helped us find creative design solutions that helped us fall in love with our house, but also do it within budget.
For people in the GTA considering a home reno - we highly recommend this team.
Sana ZiauddinGoogle review
Read on GoogleI chose Built By Pros for my en suite bathroom renovation after meeting with them at the Toronto Home Show. From the initial meeting with Suzanne to subsequent conversations about what I wanted for the renovation as a part of the contract signing - the process was smooth and feedback was always heard and quickly addressed. I felt very comfortable moving forward with the contract and project given the amount of details provided for the initial assessment and a clear understanding of the project milestones, cost and timelines. It was a pleasure working with Suzanne and Petra through the planning and construction - I had an idea / vision of what I wanted the bathroom to look like and they both made sure it was possible, down to every last detail. The crew was also great - very meticulous with their work and receptive to feedback (also very detail oriented which was excellent).
The bathroom construction timeline itself was extended a bit but was totally worth the wait. It is beautiful, functional and exactly what I hoped for. I would highly recommend Built By Pros for your construction project.
Our Process
From first consultation to final walkthrough — a clear, itemized path with no surprises. Optional steps flex to fit your project's scope.
Consultation & Quote
A thorough walkthrough of your space to understand your goals and budget, followed by a clear, itemized quote with no hidden costs.
Contract
We formalize the agreement with a straightforward contract that outlines scope, timeline, and payment milestones.
Change Order Approval
If scope shifts, every change is documented in writing before any additional work begins.
Optional StepDesign & Confirm Scope
Together we finalize the scope of work, select materials and finishes, and lock in a transparent, itemized price.
Optional StepCAD, Engineering & Permits
We handle all CAD drawings, structural engineering sign-offs, and municipal permit applications on your behalf.
Optional StepDetailed Project Planning
A week-by-week schedule covering trades, material deliveries, and inspections so every sub-contractor is on-site at the right time.
Construction Phase
Daily site supervision and regular updates. We keep a clean, safe jobsite and resolve field decisions quickly.
Project Kick-Off Meeting
We bring the entire site team together and walk you through the schedule, site access, and who to contact with questions.
Complete & Closeout
A full walkthrough, our deficiency list, and every warranty and permit handed over — total peace of mind.
More Services in Etobicoke
Full-service design and construction — one seamless team from first sketch to final walkthrough.
Office Renovation in Etobicoke
Improve existing office spaces with a professional finish that meets the professionalism & functionality of your company.
Learn MoreCommercial Renovation in Etobicoke
Full-service construction for commercial projects. Let our in-house design team elevate your brand with custom space design.
Learn MoreCustom Homes in Etobicoke
Custom home design and construction on vacant lots or existing properties, with one team coordinating design, permits and the build.
Learn MoreHome Renovations in Etobicoke
Upgrade existing spaces with quality craftsmanship to better meet the needs of your family.
Learn MoreMultiplex Conversions in Etobicoke
Custom solutions to maximize the return on your property investment.
Learn MoreAging in Place Renovations in Etobicoke
We have the ADA design training in-house to ensure your home is ready for your golden years, even when you're not.
Learn MoreComprehensive Home Additions in the Etobicoke Landscape
Navigating the complexities of home additions in Etobicoke requires a deep understanding of both the local aesthetic and the rigid regulatory environment. Since 2008, Built By Pros Inc. has been at the forefront of transforming residential properties in neighborhoods like The Kingsway, where historic charm meets modern necessity. Whether you are looking to add a master suite above a garage or a sprawling sunroom at the rear of your property, our team integrates architectural design with structural integrity. We understand that an addition is not just a room; it is a vital expansion of your family’s lifestyle, requiring careful coordination between design and execution.
In Etobicoke, the housing stock varies significantly from the mid-century bungalows of Rexdale to the lakefront estates of Humber Bay. This diversity means every project requires a bespoke approach to ensure the new structure blends seamlessly with the existing home. We prioritize high-quality materials and superior workmanship to ensure that your investment stands the test of time against Ontario's harsh seasonal shifts. According to the Etobicoke Zoning Information – City of Toronto, residential zones R1 through R6 have specific development standards that dictate building depth and lot coverage, which our planners navigate daily to maximize your square footage without violating municipal codes.
Our integrated design-build model eliminates the common friction between architects and contractors. By having our design team, led by Suzanne Morgan, work in tandem with Ricardo Lora’s construction crew, we identify potential structural hurdles early in the planning phase. This proactive approach is essential when dealing with the older mechanical systems often found in Mimico’s traditional homes. We ensure that your HVAC, plumbing, and electrical systems are not just extended, but optimized for the new load, providing a comfortable and efficient living environment throughout your newly expanded home.


Local Considerations for Etobicoke Permit and Zoning Compliance
When planning an extension, understanding the Etobicoke Building Codes and Permit Requirements is the most critical step for any homeowner. The City of Toronto requires a building permit for any structural change, including additions that increase the footprint or height of a dwelling. In Etobicoke, this process typically involves a preliminary zoning review to ensure the project aligns with the City of Toronto Zoning Bylaw. If your design exceeds the permitted lot coverage or height—common in mature areas like The Kingsway—you may need to seek a minor variance through the Committee of Adjustment, a process that can add several months to your timeline.
The regional climate in Etobicoke also dictates specific construction standards. Being close to Lake Ontario, areas like Humber Bay experience higher humidity levels and distinct wind patterns that must be accounted for in the building envelope design. Proper insulation and high-performance vapor barriers are non-negotiable to prevent moisture infiltration and ensure energy efficiency under the Ontario Building Code. As noted in the guide for Small Residential Additions – City of Toronto, any addition greater than 100 square meters requires a public notice for infill construction, highlighting the importance of community transparency and adherence to urban design guidelines.
Furthermore, many Etobicoke properties are located within regulated areas managed by the Toronto and Region Conservation Authority (TRCA), particularly those near the Humber River valley. These sites require additional environmental approvals to ensure that construction does not impact soil stability or local floodplains. Built By Pros Inc. manages these complex inter-agency communications on your behalf, ensuring that every permit is secured and every regulation is met before a single shovel hits the ground. This level of local expertise prevents costly delays and legal complications, allowing for a smoother transition from the design phase to active construction.


Pricing Factors and Budgeting for Additions in Etobicoke
Budgeting for home additions in Etobicoke involves understanding a variety of local economic factors. On average, homeowners can expect to invest between $150 and $400 per square foot, though high-end finishes in prestigious areas can drive costs higher. A major pricing driver is the current state of your home's foundation. In neighborhoods like Rexdale, where many homes were built in the 1950s and 60s, a second-storey addition may require structural underpinning to support the new weight, adding significant cost but also immense long-term value. According to recent market data, a well-executed second-storey addition can yield an ROI of 70% to 90% in the Toronto market, making it one of the most sound financial decisions for growing families.
Permit costs and municipal fees are another factor specific to the Etobicoke region. The Etobicoke Home Renovation Permits: 2026 Homeowner Guide details that structural changes, new plumbing fixtures, and electrical upgrades all trigger separate permit requirements and inspection fees. Additionally, seasonal pricing plays a role; starting a project in late autumn can sometimes be more expensive due to the need for temporary heating and winter protection for open excavations. We recommend planning your addition during the winter months to finalize permits and design, so construction can begin in the early spring to maximize the build season.
Material availability and logistics also impact the bottom line. Narrower streets in older parts of Mimico can complicate the delivery of large structural beams or pre-fabricated components, requiring specialized equipment or smaller, more frequent deliveries. At Built By Pros Inc., we provide a transparent, itemized quote that accounts for these logistical nuances. We also factor in the cost of high-quality, weather-resistant materials designed to withstand the local climate, ensuring you don't face unexpected maintenance costs down the road. By locking in prices and documenting every change order in writing, we provide our clients with financial predictability in an often volatile construction market.


Strategic Design for Modern Etobicoke Living
Modern life in Etobicoke, ON demands versatile spaces that can serve multiple functions. Our design philosophy focuses on creating additions that feel like a natural evolution of the home rather than an awkward attachment. For many clients, this means incorporating multi-generational living features, such as main-floor master suites or accessible entrances, which are increasingly popular for those looking to age in place. We utilize advanced CAD drawings and 3D modeling to help you visualize the flow of the new space, ensuring that natural light is maximized and that the transition between old and new is virtually indistinguishable.
In the diverse residential pockets of Etobicoke, we often see a demand for 'lifestyle' additions. This includes home offices with glass partitions for soundproofing, or home gyms with mirrored walls to keep families active during the cold Ontario winters. Our designers, such as Petra Tobias, specialize in selecting finishes that harmonize with the existing architecture while introducing modern efficiencies. For example, in a Kingsway heritage home, we might use traditional brickwork on the exterior to satisfy local aesthetic expectations, while installing state-of-the-art smart home systems and energy-efficient windows on the interior.
Every project we undertake in Etobicoke is a testament to our commitment to excellence. We understand that construction can be disruptive, which is why we emphasize clear communication and daily site supervision. From the initial project kick-off meeting to the final walkthrough, our goal is to minimize stress and maximize results. We leverage our 18 years of experience and a network of trusted trades to ensure that every detail, from the gold-accented fixtures in a new powder room to the structural steel in a wide-span rear extension, is executed to the highest standards of the industry.


Neighbourhoods We Serve in Etobicoke
Home Additions throughout Etobicoke and its surrounding communities.
Real Projects, Real Results
How our team handled the site conditions, structure and systems on recent GTA projects.

Rebuilt Home & Structural Modernization – North York
Executed a complete home rebuild over an existing foundation, installing a heavy steel framework to create open-concept living spaces with tall ceilings.
Read the Case StudyTriplex to Single-Family Conversion
Converted a multi-unit triplex into a cohesive single-family residence, integrating and repurposing three existing electrical panels and mechanical heating systems.
Read the Case StudyWhy Choose Us for Home Additions in Etobicoke
RenoMark Certified Quality
As RenoMark certified contractors, we adhere to a strict code of conduct that ensures professional standards and a minimum two-year warranty on all work. This certification provides Etobicoke homeowners with peace of mind, knowing their project is backed by a recognized mark of excellence. We maintain all necessary WSIB coverage and liability insurance to protect your property and our workers during construction.
Local Zoning Expertise
We have extensive experience navigating the specific bylaws of the Etobicoke Civic Centre and Toronto Building department. Our team handles every aspect of the permit application process, from architectural drawings to structural engineering sign-offs. We specifically understand the lot coverage and setback nuances in neighborhoods like Mimico and The Kingsway, ensuring your addition is fully compliant.
Seamless Design Integration
Our design-build approach ensures that your new addition looks and feels like it was always part of the original structure. We use advanced 3D modeling to match rooflines, exterior finishes, and interior flows, avoiding the 'bolted-on' look common with less experienced builders. This meticulous attention to detail is vital for maintaining the architectural integrity and resale value of your Etobicoke home.
Home Additions in Etobicoke: Your Questions Answered
Do I need a minor variance for an addition in Etobicoke?
Whether you need a minor variance depends on how your proposed addition aligns with the Etobicoke Zoning Code. If your design exceeds the maximum permitted lot coverage, building depth, or height for your specific residential zone (R1-R6), you must apply to the Committee of Adjustment. This process involves a public hearing where neighbors can voice concerns, and approvals are granted if the variance is considered 'minor' and appropriate for the neighborhood. Our team handles the entire submission and representation process to maximize your chances of approval.
How long does the permit process take in Etobicoke?
A typical building permit for a residential addition in Etobicoke takes approximately 6 to 12 weeks for the initial review by Toronto Building. However, if your project requires a zoning variance or TRCA approval, the timeline can extend by an additional 3 to 6 months. It is important to factor in this planning phase before expecting construction to begin. At Built By Pros Inc., we start the permit process as early as possible and handle all the paperwork and follow-ups to keep things moving efficiently.
Can I stay in my home during a second-storey addition?
While it is technically possible to stay in the home during some phases of construction, we generally recommend that clients vacate during a second-storey addition. The process involves removing the existing roof, which exposes the home to the elements and requires extensive structural work that can be loud, dusty, and disruptive. Safety is our primary concern, and for a project of this scale, your family will likely be much more comfortable in a short-term rental or staying with relatives until the building envelope is sealed.
What are the specific structural challenges in older Etobicoke neighborhoods?
Older neighborhoods like Mimico and Rexdale often have foundations that were not originally designed to support the weight of a second storey or modern heavy-duty masonry. During our initial consultation, we assess the soil condition and the existing foundation's thickness. In many cases, we must perform 'underpinning' or add structural columns to ensure the home remains stable. We also frequently encounter outdated clay sewer pipes or knob-and-tube wiring that must be modernized to meet the current Ontario Building Code standards during the addition process.
Renovation Insights
Tips and guidance from our design and build team.

Navigating Toronto’s Home Adaption Grants for Seniors in 2026
Discover how to access essential municipal and provincial grants for senior-friendly renovations in the GTA. Learn how accessible modifications like roll-in showers and widened doorways enhance safety while increasing your property's long-term value.
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How to Open Up Floor Plans in Older GTA Homes Using Structural Steel
Discover how structural steel beams allow renovators to remove load-bearing walls and create airy, open-concept layouts in older Greater Toronto Area homes. Learn the technical nuances of load paths, subterranean footings, and moisture management that ensure decades of structural safety.
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Converting a Multi-Unit Property Into a Single-Family Home on a Budget
Converting a triplex into an expansive single-family home doesn't require tearing everything down to the studs. Discover how repurposing existing electrical panels and installing hybrid heating systems can save you tens of thousands of dollars on your renovation.
Read MoreHome Additions in Other GTA Cities
Meet the Team
Ricardo Lora
Manager of Operations
Suzanne Morgan
Manager of Design & Sales
Valeria Saenz
Interior Designer
Marco Lopez
Site Supervisor
Let's Talk About Your Project
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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