Second Floor Addition In Toronto



Adding a second storey allows you to accommodate your growing family. The team of our custom home builders in Toronto and second-story addition contractors offers customized solutions to our Toronto clients. We believe in constructing sustainable and eco-friendly buildings.




Thinking of adding a second story? You’ve come to the right place! Embarking on a complex project, like adding a second floor, calls for a carefully crafted and intricate process. Thankfully for you and your loved ones, here at Crown Constructions, we make the whole construction process as easy as 1-2-3. For better or worse, upgrading your existing home to a two-story requires various permits and approvals from the local government. Before you embark on the second storey addition, you first need to come up with the drawings and then apply for the relevant permits from the city authorities. Our licensed architects and engineers show the change in structure for the purposes of getting the relevant permits.


Once the drawings are complete and permits obtained, the next step involves estimating the cost per square foot of the second-story addition. This cost estimation is crucial as it guides the budgeting process, ensuring that the project remains financially feasible. Factors such as the complexity of the design, materials chosen, and prevailing labor rates in your area will significantly influence the cost per square foot. Our team conducts a thorough analysis to provide an accurate estimate, allowing for more precise and careful planning, and budget allocation. The Ontario Building Code, through the city of Toronto, regulates plumbing and mechanical systems, life safety systems, insulation requirements, and fire separation requirements. The drawings are important as they show how the load will be supported, which is a requirement according to Toronto city bylaws. The dimensions also need to be sufficient to support the building for the safety of the occupants. To budget for the drawings and permits, get a quote from the Crown Constructions team – this is charged per square foot of the added space. Soon enough, your plans for the full renovation of the upper level of your home will be complete! Compliance with the Zoning Bylaw and the Toronto and Region Conservation Authority (TRCA) is also required if you live near a water body or a wetland. Your living space deserves 5-star building services, especially when it comes to story addition projects. Get in touch with our team today for a free consultation.



Before you add a second story to your bungalow, you have to demolish the roof framing and part of the wall. You cannot use them as second-floor joists – everything has to go out, apart from the main floor. Demolition also includes getting rid of the old insulation, drywall, and electrical wiring. You can extend the plumbing and ducts once you add the second storey.

The Ontario Building Code, administered by local municipalities, specifically the City of Toronto, requires you to get a permit when demolishing all or part of a building. Necessary permits can go a long way when it comes to structural work, which can be hazardous under certain circumstances.

The demolition should be controlled to ensure the rest of the building is not damaged. At Crown Constructions, we do this by hand where possible.

We will engage a garbage disposal company to carry away all the materials from the demolition in construction disposal bins to a dumpsite, where they are charged either by weight or per load. We undertake to take due care of your property to prevent unnecessary damage.




When it comes to the actual demolition process, a heightened degree of circumspection is non-negotiable to preemptively avert any inadvertent damage to the building’s residual structure. At Crown Constructions, we employ a nuanced, hands-on approach to this delicate phase. We often resort to manual techniques, utilizing hand tools and specialized equipment, to mitigate the multifaceted risks associated with uncontrolled disassembly and to ensure the preservation of elements that will remain part of the final structure.



Your new living space will soon become your sanctuary. Once you have completed the demolition, you can start bringing in the materials for the work. The project timeline for your new space depends on square footage. The second storey house addition starts with supporting existing walls so they can take the extra weight.

Depending on the design and the extra weight, your project manager may recommend adding new walls and doing load transfer on some posts all the way to the basement (in which case we will install new footings). Creating more space doesn’t have to be hard, but it does require the help of a structural engineer.

Once the walls are framed, we put the roof on. This can be a man-made roof made at the site or roof trusses from the hardware store. The most popular roofing materials in Toronto are asphalt shingles and metal sheets. Next, we install the windows and exterior doors. Consider terraces and balconies on the second floor – these are very popular in downtown Toronto. Finally, we will install the exterior, with popular exterior materials in Toronto being siding and stucco (since most older bungalows in Toronto were made from bricks which are difficult to match).


Home construction wouldn’t be complete without a marvelous interior. The cost of interior finishing depends on the materials used, the square footage, and the complexity of the work.

The Crown Constructions team starts interior finishing by working on electrical wiring, drains, water pipes, and heating supply systems. Once the skeleton is in place, we will cover it with insulation, with the exterior walls acting as a separation from the outside. Once the essentials have been installed, they are inspected by the relevant authorities before the walls and ceilings can be closed with drywall. We use different materials for finishing flooring, bathrooms, walls, and doors, depending on your preference. Our team will guide you on where to get discounts and the highest quality finishing materials from suppliers in the Greater Toronto Area. If you are not familiar with current trends, we invite you to choose designs from our existing catalogue. We can also create new custom designs for you. We endeavour to complete interior finishing within the stipulated time, and our team is available on a 24-hour basis for this.



If you want to add a second floor to your house to accommodate a growing family, you may be interested to know that there are other benefits to the second-storey addition other than getting space for your growing household.

With a second story, you get to keep all your outdoor space. If you were to bring down your bungalow for extra space, you would eat into your outdoor space that would otherwise be used for such things as a garden, a play area, or a swimming pool.

A second story offers you a better view. If you live in a beautiful location, you can have second-floor extensions that have a spectacular view.

One of the main reasons people move is to get extra space. This is time and energy-consuming. With a second-storey addition, you will not need to move.

Adding a second story will also increase the resale value of your home, among other benefits. The house of your dreams will be ready in record time with all the required interior finishes and second story additions according to your specifications. All you have to do is pick up the phone and book a consultation.


Second floor addition projects are exciting and can greatly enhance the functionality, aesthetics, and value of your existing home. However, it is essential to have a clear understanding of what you need for this project before starting any work. At Crown Constructions, our experts have vast experience in custom-designed second-storey addition. We are committed to a quick turn time, so you don’t have to live for long in a construction zone.

So, what do you need for the project? When you come to us, we start by consulting with you to understand exactly what you need. We will also explain our process in depth.

We have a creative team that will assist you to come up with the design. This team works with our licensed team of engineers and architects to draw up the plan for purposes of permit issuance. Once the permits are out, we will guide you on where to get the best materials for the project.

The construction starts with the demolition of the old roof and walls, followed by installing the new skeleton, the doors and windows, the wiring, plumbing, and other fixtures, the drywall, and then the exterior. The team will then do the interior finishing.


If you want to add a second floor to your bungalow, the first thing on your mind is probably how much it will cost to add a second floor in Toronto.

On average, you expect to spend between $100 and $400 per square foot to add a second storey. If your new story is 500 square feet, this means you expect to spend between $50,000 and $200,000.

The cost of second floor addition in Ontario can be categorized into fixed and variable costs. Fixed costs are costs that all building projects incur, such as building permits and paperwork which will cost you around $4000, blueprints which cost between $1,200 and $2,500, soil testing around $1,000, and architectural design between $2,000 – $5,000.

The cost of labour, HVAC, drywall, flooring, electrical wiring, plumbing, and fixtures depends on the particular material you are going for. At Crown Constructions, we will guide you on the suppliers with the best quality materials in the GTA.


Contact the Crown Constructions home builder team for second floor or second story additions. We will handle your project from inception to completion. Our repeat business is a testament to our high-quality customized solutions. We endeavour to offer speedy results, incorporate your views on modifications at any stage of the project, and keep you updated throughout.


We take safety seriously. We do regular site inspections to ensure strict adherence to Health & Safety regulations to guarantee safety for all and to protect your property. Our team also goes through regular safety training.

Client-Oriented Service

We are customer-centric to the core. We will sit down and listen to everything you and many homeowners have to say in order to complete your second story additions the right way. We keep an open communication channel throughout the project, and our customer service is world-class.

Fair Price

We want to give you your dream home, regardless of the circumstances. That’s why our work is cost-effective, and our rates are competitive. We never exceed the budget and finish the project within the stipulated timelines to prevent cost overruns. In all this, we never compromise on quality.

Always on Schedule Performance

We understand the longer the project runs, the longer you are away from your home and the more expensive it will be. Through careful planning, we are able to meet all timelines set forth by the home owner.

At our company, we are proud of the 5-star reputation we have earned through our second floor addition projects. Our team is highly skilled and dedicated to delivering high-quality work that exceeds expectations. We strive for excellence in every project and take pride in providing our clients with their dream home.


Monday – Friday: 8:00 – 17:00 Hrs (Phone until 18:00 Hrs)
Saturday: 8:00 – 16:00 Hrs
Sunday: Closed


432 – 720 King Street West
Toronto, ON M5V 3S5
Phone: 416-524-2766