The client
A mixed-use commercial-residential property owner in St. Catharines-Niagara carrying a $340,000 first mortgage and a $92,000 private second, both to be paid out through a new refinance.
Original appraisal (at purchase)
$625,000
Residential direct comparison to nearby sales
New appraisal (at refinance)
$560,000
Commercial income approach, because of the ground-floor unit
First mortgage balance
$340,000
Private second balance
$92,000
The problem
The same building can carry two genuinely different, professionally defensible values, depending entirely on which appraisal method is applied -- and a private second's planned exit assumes the number will hold from one appraisal to the next.
Why the two appraisals didn't match
- ▸The original appraisal, done at purchase, valued the building at $625,000 by residential direct comparison to nearby home sales
- ▸The new lender's underwriter required a commercial income-approach appraisal instead, because of the ground-floor commercial unit -- capitalizing the property's own net operating income rather than comparing it to nearby sales
- ▸The income-approach appraisal came in at $560,000, a $65,000 gap from the original figure on the identical building
Nothing about the building had changed. Which appraisal method applied to it had.
The numbers
The gap between the two appraisal methods flowed directly into a shortfall at the lender's own loan-to-value ceiling.
| What each appraisal method actually supports | Amount |
|---|---|
| Maximum loan at 75% LTV, on the $625,000 comparison value | $468,750 |
| Maximum loan at 75% LTV, on the $560,000 income-approach value | $420,000 |
| Needed to pay out both existing mortgages | $432,000 |
| Shortfall | $12,000 |
| Refinance at the income-approach value | Figure |
|---|---|
| Loan actually funded | $420,000 |
| Qualifying payment (7.55%), 25 years | $3,086/mo |
| Property tax + heat | $510 |
| Total debt service, $8,900/mo household income | 43.3% |
43.3% clears comfortably on the loan the income-approach value actually supports -- the $12,000 shortfall, not the ratio, is what the file had to solve for, nowhere near the territory mortgage arrears rate data would flag as a risk.
The solution
A mortgage agent licensed under Ontario's Mortgage Brokerages, Lenders and Administrators Act treated the appraisal-method gap as a proceeds question to solve, not a valuation dispute to argue.
First, confirmed with the new lender's underwriter why a commercial income-approach appraisal was required, rather than assuming the original direct-comparison figure would carry forward automatically.
Second, quantified the exact shortfall at the lender's own loan-to-value ceiling once the income-approach appraisal came back, rather than discovering it at the funding stage.
Third, closed the $12,000 gap with a combination of the owner's own funds and a partial paydown negotiated directly with the private lender ahead of the payout date, rather than letting the file stall on the appraisal difference alone.
The outcome
The refinance funded at 5.55% on the $420,000 the income-approach value actually supported, with total debt service at 43.3%.
This file is uninsured, so there is no CMHC ratio ceiling; the 43.3% figure is informational.
What to take from this file
- 01A mixed-use commercial-residential property's appraisal method is not fixed from one transaction to the next. A ground-floor commercial component can move a refinance from residential direct comparison to commercial income approach.
- 02Two professionally defensible appraisals of the same building can differ by tens of thousands of dollars. Neither figure is wrong; they are answering different questions.
- 03Confirm which appraisal method a refinance lender will require before assuming the original purchase-era value still applies. A private second's planned exit depends on it.
- 04Quantify a shortfall at the actual loan-to-value ceiling early, and negotiate with the private lender directly. A gap discovered before the payout date is a solvable problem; one discovered at funding is not.
Sources
Every regulatory figure in this file traces to one of these primary sources. Client details and anything that varies by lender are illustrative, as flagged below.
- ▸OSFI — Minimum qualifying rate for uninsured mortgages — the minimum qualifying rate — greater of contract rate + 2% or 5.25%.
- ▸Provincial/territorial mortgage-broker legislation fetched directly (bclaws.gov.bc.ca, legisquebec.gouv.qc.ca, fcaa.gov.sk.ca, web2.gov.mb.ca, nslegislature.ca, assembly.nl.ca) plus FCNB's own site for NB and CanLII's index for PE — see notes for per-province method — provincial mortgage regulators and licence titles.
Illustrative in this file — lender-specific, not rules:
- ▸5.55% contract rate — rates move daily; not a quote.
- ▸the 75% maximum loan-to-value — each lender comfortable with a mixed-use commercial-residential property sets its own LTV ceiling; not a published rule.
- ▸the two appraisal values — an appraisal is a professional opinion of value at a point in time; both figures are illustrative for this file, not quotes.
- ▸the 43.3% TDS figure — this file is uninsured, so there is no CMHC ratio ceiling -- the number is informational.
Authority & provenance
How this case file was built
We publish the origin, the verification method and the reviewer for every case file, so you can judge how far to trust it before you rely on it with a client.
Where it comes from
Derived from files handled by Treadstone’s fulfillment desk and from scenarios contributed by partner brokerages. Names, employers, exact amounts and dates are changed so no client or file is identifiable.
Provenance: Composite — a pattern seen repeatedly on fulfilled files, not a single transaction.
What is verified
Every regulatory figure traces to a primary source listed above and was checked against it on the date shown. The arithmetic is recomputed by machine on every rebuild.
Anything that varies by lender is labelled illustrative rather than stated as a rule.
Who reviewed it
Reviewed for Canadian regulatory accuracy before publication, and re-checked whenever a cited rule changes.
Reviewed by: Nicholas Parson, Treadstone Associates — reviews every case file before publication.
This case file is professional reference material for licensed mortgage professionals. It is not advice to a borrower, and it is not a lender commitment. Insurer rules, qualifying rates and provincial taxes change — confirm the current position with the insurer, regulator or lender before you rely on any figure here in a live file.