5 Things to Consider Before Building a Custom Home Addition

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Second floor and rear addition project converted a little bungalow into a contemporary custom home with 4 bedroom and 5 bathroom. New design features 10' ceilings on the main floor, 9' ceilings in the second floor and a large basement full of natural light.

The living space of a one storey brick dwelling was tripled, and a small bungalow was converted into the one of the kind 3 storey contemporary house with finished basement and livable 3rd storey attic. In an established enclave of 1-1/2 storey homes, adding a third floor to a proposed dwelling is difficult enough. The key factor in obtaining the positive verdict of the Committee of Adjustment was the fact that the addition would be constructed on existing footprint, not to mention the fact that using existing foundation helped to save the homeowner over ten thousand dollars.


September 08, 2017 5 Things to Consider Before Building a Custom Home Addition


Have you outgrown your home? Homeowners in North York looking for an upgrade usually consider two options: Build a new custom home, or design a custom addition to their current home. Deciding between the two requires the consideration of multiple factors, including zoning by-laws, and the condition of the home’s foundation, but homeowners often find the difference in costs to be the deciding factor. Below are 5 factors that affect the cost of a custom home addition build in North York.


Size tends to be a great indicator of a home addition’s price in North York. There are, of course, seemingly small issues that can end up costing a fortune, like a cracked foundation, but the cost of custom home additions can be roughly estimated by the square-foot measurement. Decide how large the addition needs to be to meet your lifestyle requirements. Consider building a custom home from scratch if the per-square foot cost of the home addition is too high.


Consider your custom home addition’s purpose. Adding a bedroom, a living room, or a family room will be much less costly than adding a kitchen, which will require more plumbing, ventilation, and electrical work. The purpose of building a custom home addition can drive up the cost, but if it meets your lifestyle requirements, it will be much cheaper than designing a custom home from scratch in North York.


Complex designs featuring vaulted ceilings or intricate roof lines make an impact on the overall price of a custom home addition in North York. A simple design, on the other hand, for a living room or family room for example, can drive the cost of the addition down. It may financially sensible to sell the house and build a custom home with all the architectural intricacies and complex designs you need, then to add them to an existing home.  

Lot conditions

Building custom home additions in certain North York neighbourhoods can get costly. The amount of working space, for unloading and storing materials, or for set up scaffolding for example, should be strongly considered. A smaller lot with close proximity to neighbouring homes where machines cannot operate will require construction crews to do more work by hand, driving up costs. An addition can also cost more or less depending on the location of the home, as older neighbourhoods in North York with small lots can be much harder to work in, resulting in longer a construction schedule.


To get a more clear and precise estimate of the cost of building a home addition in North York, every detail needs to be considered. For example, in the case of a rear addition, will you need to remove the entire back wall of the house, or can you connect the addition to the home through a standing doorway? Will you need to change your AC and furnace to accommodate the added space? The price of the custom home addition can change dramatically as a result of choosing one over the other.

Have you outgrown your home? It’s time to think about building a custom home addition. Call Well Built today at (416) 882-4606 to learn more about how you can get your dream home on time and on budget.


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