Cost to Build a Custom Home in Ontario

March 24, 2026

If you are thinking about getting a custom home built for you and your family, having a general idea of how much it could cost is an important step in starting to plan for it.

This guide will answer your question “How much does it cost to build a house in Ontario?” by providing breakdowns of average prices based on size and construction elements and discussing how various factors can affect the overall cost. Read on to learn what it takes to build an epic home!

Please Note: The average figures in this article are based on The Epic Builders’ experience and are provided for educational purposes only. They are not exact estimates. Custom home costs in Ontario can fluctuate depending on the details of the build, site conditions, material selections, and market changes. For pricing based on your project, book a discovery call with The Epic Builders.

Key Takeaways

  • Custom home costs in Ontario can range from $350 to $1,000 per square foot, depending on the level of finishes and complexity of the build.
  • Based on The Epic Builders’ pricing model, a 1,500 sq ft custom home may start around $525,000, while a 5,000 sq ft home can reach $5,000,000 at the high end.
  • Mid-range custom homes are estimated at around $600 per square foot, which means a 2,500 sq ft home may cost about $1,500,000.
  • The total cost of building a house in Ontario includes both soft costs and hard costs, not just the structure itself.
  • Soft costs such as land, permits, and architectural drawings should be factored in early when planning your budget.
  • Hard costs such as labour, materials, utilities, excavation, and landscaping can make up a large share of the overall build cost.
  • Average figures are a helpful starting point, but final pricing can vary based on the lot, design, materials, and scope of work.

What is the Average Cost to Build a Custom Home in Ontario? (2026)

The cost to build a custom home in Ontario varies depending on different factors, such as the size of the house, its location, and the quality of chosen materials and finishes. Since every custom home is unique, every project also has their own unique requirements and complexities that can affect the cost.

For example, at The Epic Builders, a low-end build costs $350 per sq ft, a medium-end is $600 per sq ft, and high-end can be as much as $1,000 per sq ft. As such, the average cost for a medium range build that is 2,500 sq ft would be around $1,500,000. This includes all material, labour, and overhead costs.

Average Cost to Build a Custom Home by Size

One of the most important factors that will affect the cost to build a house is the size of the home. The following is a cost breakdown that outlines average home sizes and their respective low to high price ranges based on square feet:

Average Home Size

Average Low Range (based on $350 per sq ft)

Average Medium Range (based on $600 per sq ft)

Average High Range (based on $1,000 per sq ft)

1,500 sq ft

$525,000

$900,000

$1,500,000

2,000 sq ft

$700,000

$1,200,000

$2,000,000

2,500 sq ft

$875,000

$1,500,000

$2,500,000

3,000 sq ft

$1,050,000

$1,800,000

$3,000,000

3,500 sq ft

$1,225,000

$2,100,000

$3,500,000

4,000 sq ft

$1,400,000

$2,400,000

$4,000,000

4,500 sq ft

$1,575,000

$2,700,000

$4,500,000

5,000 sq ft

$1,750,000

$3,000,000

$5,000,000

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Average Cost of Construction in Ontario 2026

In regard to the actual construction of the home, which consists of many different elements, each element has its own price range that will affect the total cost, making it either more or less expensive. Below is a breakdown of the average cost of construction in Ontario to help you better budget for a future custom build:

Construction Element

Estimated Price Range

Land

$200,000 – $500,000+

Architectural Plans

$5,000 – $30,000+

Building Permits

$5,000 – $20,000+

Landscaping

$5,000 – $30,000+

Utilities Installation

$10,000 – $50,000+

Materials

$100,000 – $500,000+

Labour

$150,000 – $300,000+

Unexpected Costs
(budget for 10-20% of total cost)

$50,000 – $200,000+

Total

$525,000 – $1,650,000+

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Major Factors Impacting the Cost of Building Custom Homes

As previously discussed, there are a variety of factors that greatly affect the cost of building a house in Ontario. Now, let’s dive a little deeper into the different kinds of costs pertaining to the elements of construction, which are the most important factors aside from the size of the home:

Soft Costs

Soft costs encompass everything not tied directly to the physical construction of your home and are usually dealt with in the planning, pre-construction stages. This includes:

  • Land Costs — The cost of the land on which your home will be built depends on the location (and size) of the land itself. For example, buying a plot of land in Toronto or the GTA can cost around $260,000 on average. As such, the purchase of land has a large impact on the total build cost.
  • Building Permits — Before construction can begin, building permits must be obtained. Different municipalities have different permit fees, so it’s a good idea to check your specific city requirements as you start to budget for your build. For instance, in Toronto, a building permit costs a minimum of $214.79, but this is often higher based on the actual scope of work and types of permits needed.
  • Architectural Plans — The plans for your build do have their own cost as outlined in the construction cost breakdown from the previous section. If changes to the design are made, especially after construction has already started, this could add to the overall cost. As for the architecture itself, the uniqueness of the design will affect the cost as the more complex the design is, the more expensive your home will be.

Hard Costs

Hard costs encompass all aspects of the physical construction and make up the majority of your budget. The main elements of this type of cost include:

  • Labour Costs — Labour costs vary depending on the scope and complexity of the project and the contractors hired to complete the build. Typically, though, they will make up around 30% to 60% of the total cost.
  • Excavation — The deeper the excavation needed for the foundation and basement of your home, the more expensive the build will be.
  • Utilities — The installation of all the necessary utilities (electrical, plumbing, and HVAC) will add to the overall cost of your build, but this cost is unfortunately unavoidable.
  • Materials — The type of materials you choose to build your home with will significantly affect the overall cost. The more expensive the materials, the more expensive the total cost. It is a good idea to go with mid-range materials instead of luxury as this way you can still get high-quality and durable materials, but at a more affordable price. 
  • Finishes — In the same vein as the materials used to build the house, the finishes used for the exterior and interior of your home will also significantly affect the overall cost, depending on the type of finishes that are chosen. It’s always tempting to go with the most luxurious options, but it is crucial to ensure that you remain on budget. 
  • Landscaping — It’s not just the house itself that must be considered, but the landscaping surrounding it. Grass, trees, flowers, bushes, and anything that you might want to make the area around the exterior of your home look good will be an additional cost.

Final Thoughts

Ultimately, the cost to build a house in Ontario depends on a variety of factors, with size being the most important. Other construction elements, such as land, building permits, labour, and materials, also affect the overall cost, with the lowest average price being $525,000 for a 1,500 sq ft custom home.

For an epic home that perfectly suits your family’s needs, The Epic Builders is the place to turn to. Contact us today for a free consultation!

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FAQs

In terms of the upfront cost, buying a pre-built home is cheaper than building a custom home. However, it is a good idea to take the state of the pre-built home into account before moving forward.

If a pre-built home doesn’t perfectly match your needs and you want to renovate it after purchasing it, then the combined costs of both the purchase and renovations could surpass the cost to build a custom home. In which case, it would be better to pay to build your own home, so that everything is exactly the way you want it the first time around.

No, while we do take care of permit applications for you, permit fees are not included in our costs for building a custom home and neither is purchasing property. Although, our costs do include all material, labour, and overhead costs.

The cost to build a 2,000 sq ft home in Ontario depends on whether you are looking for a lower- or higher-end build. Our costs start at $350 per sq ft and can go as high as $1,000 per sq ft. As such, our average cost to build a 2,000 sq ft home starts at $700,000 for the low range, to $1,200,000 for the medium range, to $2,000,000 for the high range.

The cost to build a 5,000 sq ft home in Ontario depends on whether you are looking for a lower- or higher-end build. Our costs start at $350 per sq ft and can go as high as $1,000 per sq ft. As such, our average cost to build a 5,000 sq ft home starts at $1,750,000 for the low range, to $3,000,000 for the medium range, to $5,000,000 for the high range.

Once permits are approved, it typically takes 8 to 12 months to build a custom home. Please note, though, that this is only the length of the construction stage.

The entire amount of time that the process takes, from planning to completion, depends on design complexity, the size of the home, site conditions, material availability, and permit approval time, which means that the full length of time is different for every project as each epic build has its own unique requirements.

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