Home Additions & Second Storeys in Scarborough
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 Step
Design & 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 Step
Detailed 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 Scarborough
Full-service design and construction — one seamless team from first sketch to final walkthrough.
Office Renovation in Scarborough
Improve existing office spaces with a professional finish that meets the professionalism & functionality of your company.
Learn MoreCommercial Renovation in Scarborough
Full-service construction for commercial projects. Let our in-house design team elevate your brand with custom space design.
Learn MoreCustom Homes in Scarborough
Custom home design and construction on vacant lots or existing properties, with one team coordinating design, permits and the build.
Learn MoreHome Renovations in Scarborough
Upgrade existing spaces with quality craftsmanship to better meet the needs of your family.
Learn MoreMultiplex Conversions in Scarborough
Custom solutions to maximize the return on your property investment.
Learn MoreAging in Place Renovations in Scarborough
We have the ADA design training in-house to ensure your home is ready for your golden years, even when you're not.
Learn MoreStrategic Home Additions for Scarborough Neighborhoods
Building a home addition in Scarborough requires a deep understanding of the local landscape, particularly for properties in Cliffside or near the scenic Scarborough Bluffs. Homeowners in these areas often seek to maximize their generous lot sizes, which frequently measure 40 to 60 feet in width and over 100 feet in depth. According to the Scarborough Bluffs Home Addition Evaluation Guide, properties near these natural landmarks are often subject to TRCA (Toronto and Region Conservation Authority) jurisdiction. This means that if your home is within a watershed protection zone or adjacent to a ravine, the approval process can take an additional two to three months. At Built By Pros Inc., we specialize in navigating these complex environmental regulations to ensure your expansion project meets all municipal and provincial standards.
Our team focuses on modernizing dated builder-grade finishes while addressing the unique structural needs of the region. Many older homes in Scarborough Village are situated on what is locally known as 'Scarborough Clay.' This deep clay and silt composition can lead to differential settlement if the new foundation isn't engineered correctly. We integrate soil testing early in our design phase to determine if underpinning or specialized drainage solutions are necessary. By choosing our home additions service, you benefit from over 18 years of experience managing these localized geographical challenges. We ensure that your new master suite or sunroom is not only beautiful but structurally sound for decades to come.
When planning an extension, it is crucial to consider the neighborhood's existing character. In areas like Scarborough Junction, where transit-oriented development is rising, adding a secondary suite or a multi-story rear addition can significantly boost property value. We work closely with our clients to align their vision with the city's zoning bylaws. A proactive 10-minute zoning check can save months of frustration by identifying potential variances early. Whether you are looking to add a second story to a post-war bungalow or a expansive glass-walled sunroom to a modern villa, our integrated design-build approach ensures that the project remains cohesive and compliant with the latest building permit requirements in Toronto.
Scarborough Pricing Factors and Investment ROI
Understanding the financial landscape of home additions in Scarborough is vital for a successful project. Costs are influenced by the type of addition, material availability, and seasonal labor rates. For instance, a single-story rear addition of approximately 400 square feet typically starts in the $40,000 to $80,000 range for base construction, though high-end finishes and site-specific complexities like foundation work in clay soil can push budgets toward $100,000 or more. According to the Home Additions in Toronto 2026 guide, second-story additions generally cost between $200 and $400 per square foot, with premium options exceeding these averages depending on the luxury level of the interior finishes.
Permit fees and regulatory costs also vary based on the complexity of the project. If your addition is zoning-compliant, the permit process typically spans three to six months. However, if a variance is required through the Committee of Adjustment (CoA), homeowners should budget for an additional two to four months and the associated legal and administrative fees. We help our clients in Scarborough, ON navigate these costs by providing transparent, itemized quotes. By managing the procurement of materials and scheduling trades during optimal seasonal windows, we mitigate the risk of price spikes that often occur during the busy summer construction months.
Investing in a home addition is one of the most effective ways to increase the equity of your Scarborough property. Many homeowners in Rouge find that adding a functional home office or a self-contained garden suite provides a better return on investment than selling and moving to a larger home. We emphasize high-quality materials, such as energy-efficient windows and superior insulation, to ensure the new space remains comfortable during Ontario's harsh winters. This attention to detail not only lowers long-term utility costs but also makes the home more attractive to future buyers. Our team ensures that every dollar spent contributes to both the lifestyle utility and the market value of your residence.
Local Considerations and Building Regulations
The regulatory environment in Scarborough is distinct due to its mix of residential zones, ranging from RD (Residential Detached) to RM (Residential Multi-unit). Each zone has specific setbacks, lot coverage limits, and height restrictions that dictate the feasibility of an 'up or out' extension. As noted in the discussion of home additions versus extensions, the larger lot sizes in Scarborough often allow for more flexible 'as-of-right' developments compared to the denser urban core of Toronto. However, neighborhood patterns are still a critical factor, as previous decisions by the Committee of Adjustment can set precedents for what is likely to be approved on your specific street.
Climate is another major local consideration. Scarborough's proximity to Lake Ontario means higher humidity in the summer and significant snow loads in the winter. We design our additions with advanced moisture barriers and roofing systems that exceed the standard Ontario Building Code to prevent issues like ice damming or basement seepage. Furthermore, if your property features mature trees, we must coordinate with Urban Forestry to ensure that the footprint of the addition does not interfere with protected root zones. This is particularly relevant in the heavily forested pockets of the Rouge area, where environmental preservation is a high priority for both the city and the community.
Finally, the age of Scarborough's housing stock presents unique challenges for mechanical integration. Many homes built in the 1960s and 70s require significant electrical and HVAC upgrades to support the increased demand of a new wing or second floor. Our multidisciplinary team, including in-house project managers and specialized contractors, handles these technical aspects seamlessly. We ensure that your new addition integrates perfectly with your existing systems, providing a unified and efficient home environment. By addressing these local factors early in the planning stage, we prevent the 'surprises' that often derail DIY or budget-contractor projects, delivering a finished space that feels like a natural part of the original architecture.
Neighbourhoods We Serve in Scarborough
Home Additions throughout Scarborough 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 Scarborough
Zoning & TRCA Expertise
We handle complex approvals for properties near the Scarborough Bluffs and ravine zones. Our team manages all TRCA and Urban Forestry documentation to ensure your addition is 100% compliant. This prevents costly work-stoppage orders and legal delays.
Value-Driven Design
Our designs focus on maximizing ROI by utilizing Scarborough's unique lot depths for high-value extensions. We help you choose layouts like master suites or open-concept kitchens that buyers in the GTA prioritize. This ensures your investment grows your home's equity significantly.
Climate-Resilient Building
We use specialized insulation and moisture barriers designed for the lakeside Scarborough climate. This protects your new space from humidity and extreme temperature fluctuations common in the region. Your addition will remain comfortable and energy-efficient year-round.
Home Additions in Scarborough: Your Questions Answered
Do I need a TRCA permit for a home addition in Scarborough?
If your property is located near the Scarborough Bluffs, a ravine, or a designated watershed, you likely need approval from the Toronto and Region Conservation Authority (TRCA). This process involves an environmental impact assessment to ensure your construction doesn't cause erosion or damage the local ecosystem. Our team handles the application and coordination with TRCA, which typically adds 8-12 weeks to the planning phase.
How long does the building permit process take in Scarborough?
For a standard, zoning-compliant home addition, the permit process in Scarborough generally takes 3 to 6 months. However, if your design requires a minor variance, you must go through the Committee of Adjustment, which can add another 3 to 6 months to the timeline. We recommend starting the design and zoning review at least 9 months before your desired construction start date to account for these municipal timelines.
What are the common soil issues when building additions in Scarborough?
Scarborough is known for its heavy clay and silt soil, often referred to as 'Scarborough Clay,' which can expand and contract significantly. This requires specific foundation engineering, such as deeper footings or specialized drainage systems, to prevent the new addition from settling differently than the original house. We conduct site-specific soil evaluations to ensure the structural integrity of your foundation from day one.
Can I stay in my home during the construction of an addition?
Whether you can stay depends on the type of addition; for rear extensions, it is often possible to seal off the construction zone and remain in the home. However, for second-story additions where the roof is removed, we strongly recommend vacating the premises for 3 to 5 months for safety and comfort. We provide a detailed schedule so you can plan your living arrangements well in advance of the project kickoff.
Renovation Insights
Tips and guidance from our design and build team.
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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
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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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