A standard residential mortgage is secured by something the lender can see: a finished home, appraised, insured, with a clear title. A construction mortgage has none of that at the start. The security is a vacant lot, a set of drawings, a municipal permit and a budget — and the lender is being asked to advance money against a house that does not exist yet.
That single fact explains almost everything else in this course. Lenders will not hand over the full loan amount on day one, because there is nothing built yet to secure it. Instead, they release money in pieces — draws — timed to match how much of the house has actually gone up, verified by an independent inspection each time. This is the defining mechanic of construction lending, and it applies whether the borrower is a homeowner building a custom house or a small builder putting up a duplex to sell.
"Construction mortgage" gets used loosely, and it is worth separating the two files it usually describes. The first is a self-build or contractor-build for occupancy — a borrower buying a lot and building a home they intend to live in, financed with progress draws that convert to a standard mortgage once the home is complete. The second is builder or commercial construction financing — a developer or small builder constructing units for sale or lease, underwritten more like a commercial file with cost-to-complete analysis and a defined exit through sale or refinance.
This course focuses primarily on the first type, since that is the file a residential mortgage broker or agent will meet most often, but the underwriting logic — draws, holdbacks, cost-to-complete, inspections — is shared by both, and module 08 covers the commercial-style build in more depth. Course 16 covers commercial mortgage underwriting on its own, for readers financing income property rather than a single home.
Fewer lenders offer construction financing than offer standard mortgages, and the ones that do are generally more selective about the borrower, the builder and the plans. Construction risk is real: costs run over, trades disappear mid-project, and an unfinished house is worth far less than a finished one if the lender ever has to take it back. Expect tighter documentation requirements, a mandatory cost-to-complete review, and — outside of insured programs built for this purpose — higher rates or fees than a comparable standard mortgage.
None of this makes construction financing exotic. It is a well-established, well-understood corner of Canadian lending. It simply asks different questions than a purchase or refinance does, and this course is built around those questions.
Why do construction mortgages get advanced in stages rather than as one lump sum at the start?
Draws exist to match funding to collateral. A lender advancing the full amount on day one against a vacant lot would be badly under-secured if the build stalled. Releasing money against verified, inspected progress keeps the loan roughly in step with what actually stands on the property. There is no government rule mandating staged funding — it is a lender risk-management practice, and rate is set by the loan's risk profile generally, not manufactured by the number of draws.
