Leah Kadikoff — Mortgage Agent
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Pre-construction

What Happens When a Pre-Construction Appraisal Comes In Low?

If you signed a pre-construction agreement years ago and are now approaching closing, this is the scenario worth understanding in advance rather than discovering late.

By Leah Kadikoff, Mortgage Agent Level 1

Last reviewed: September 2026

Why the gap happens

A pre-construction price is set at signing. The appraisal happens near closing, often several years later. In between, market values move — sometimes upward, sometimes downward. When the appraised value at closing is lower than the price in your agreement, that difference is an appraisal shortfall.

This is a market risk, not a defect in your purchase or a mistake by anyone involved. It is simply the consequence of a long gap between agreeing a price and completing the transaction.

What it changes about financing

Lenders generally advance financing based on the lower of the purchase price and the appraised value. If the appraisal comes in below the agreed price, the financing available is calculated against the lower figure, and the difference becomes additional cash required at closing on top of your planned funds.

Your obligation to complete the purchase is set by your agreement of purchase and sale, not by the appraisal. That is why the timing of this review matters so much.

A worked illustration

  • Agreed pre-construction price: $700,000.
  • Deposits already paid to the builder: $105,000.
  • Appraised value at closing: $650,000.
  • Financing is assessed against $650,000 rather than $700,000, so the cash required at closing increases by the $50,000 difference, before closing costs.

The figures are illustrative only. Your actual position depends on your agreement, your deposits, the appraised value and the financing you qualify for.

How to prepare

  1. 01Start the financing conversation well before your interim occupancy or final closing date, not in the final weeks.
  2. 02Locate your agreement of purchase and sale and confirm the price, deposits paid and the closing structure.
  3. 03Understand what your builder requires and when.
  4. 04Review your current qualification, since income, credit and rates may all differ from when you signed.
  5. 05Plan for closing costs separately. Common closing costs when purchasing in Ontario sets out what is typically involved.

On solutions you may have heard about

There are various approaches people discuss for bridging an appraisal gap, including vendor take-back arrangements. None of them is universally available. Whether any particular structure is possible depends on the builder, the property, the lender and your own qualification, and in many cases it is not available at all. I would rather review your specific file than have you rely on a general assumption.

The takeaway

Time is the resource that helps most here. A shortfall identified months before closing has options available to consider. The same shortfall identified two weeks out usually does not.

This article is general information only. It is not a mortgage approval, a rate quote, or individualized financial, tax or legal advice. Terms, availability and eligibility depend on the borrower, the property and the lender.

FAQs

Direct answers

What is a pre-construction appraisal gap?

It is the difference between the price in your original pre-construction agreement and the property's appraised value near closing, when the appraised value is lower. Financing is generally assessed against the lower of the two figures.

Do I still have to close if the appraisal comes in low?

Your obligation is governed by your agreement of purchase and sale, not by the appraisal. This is a question for your real estate lawyer, and it is a good reason to review the financing position early.

Can the shortfall be financed?

Sometimes options exist, and sometimes they do not. It depends on the property, the builder, your qualification and lender policy. No approach should be assumed to be available without reviewing the specific situation.

When should I start arranging pre-construction financing?

As early as you reasonably can, and well before interim occupancy or final closing. Early review is what creates room to consider options if the numbers do not land where you expected.

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