Can You Get a Construction Loan With a Mortgage?

If you’re planning to build or significantly renovate while still carrying a mortgage, you’re likely asking: can you get a construction loan with a mortgage? In short, yes, but financing delivery always depends on the details. A construction loan is a short-term loan that covers building materials, labour,  and other construction costs and the home construction must usually be completed within six months to two years.

We work with borrowers across Ontario navigating the construction mortgage process, often while managing an existing mortgage. We understand how to make these projects financially feasible, even when the structure is more complex than a standard mortgage.

You can absolutely apply for a construction loan while already holding a mortgage, but whether or not it gets approved relies entirely on if your financial situation can support both obligations. During the application process, lenders examine your capacity to manage the additional loan through income verification, credit history, and debt servicing. At Tribecca, if you have sufficient equity we can include your servicing costs in the loan.

Home equity often plays the largest role in how much you can borrow. If your outstanding balance on a conventional mortgage is low, or your existing home has appreciated, your equity position strengthens your application. This directly affects how much you can borrow.

Most loans require a larger down payment than a traditional mortgage because the lender is financing not just the land or home, but the construction costs as well.

 Some homeowners take out a second mortgage to fund construction without disturbing their current conventional mortgage, which allows you to access equity while keeping your original interest rates intact. A draw mortgage structure releases funds in stages according to project milestones, such as when construction begins or at each completion stage. This can help manage cash flow, especially when working with a general contractor or home builder who needs funds in phases rather than a lump sum.