The client
A Barrie household is renewing a re-advanceable mortgage -- mortgage and HELOC combined under one product -- with a $340,000 mortgage balance.
Mortgage balance at renewal
$340,000
Re-advanceable product
Original appraisal (at setup)
$615,000
Combined-limit percentage
65% of appraised value
This lender's own policy
Fresh appraisal at renewal
$545,000
HELOC room lost
$45,500
The problem
This lender fixes the combined mortgage-plus-HELOC limit at a flat percentage of the property's appraised value, reassessed at every renewal -- not a one-time number set at origination and left alone. A fresh appraisal at this renewal came in well below the original figure, and the same 65% applied to a lower number produced a materially smaller combined limit, even though the mortgage balance itself hadn't changed at all.
Why the mortgage renewed unchanged while the room shrank
- ▸The mortgage portion's balance, rate and payment are governed by the renewal itself, entirely separate from the credit-limit calculation
- ▸The combined limit is recalculated against whatever the CURRENT appraisal shows, not the appraisal used when the product was first set up
- ▸A lower appraisal shrinks the room available to draw, even with zero dollars actually drawn or repaid on either portion
The household had been planning a renovation around the room they remembered from setup -- $59,750 -- and had no reason to expect a renewal to touch that number at all.
The numbers
The mortgage itself needed no new qualification at renewal, but sizing the renovation correctly meant treating the HELOC room as a number that resets, not a fact -- something the broader renewal statistics don't track at all.
| The combined limit, before and after the fresh appraisal | Amount |
|---|---|
| Original combined limit (65% of $615,000) | $399,750 |
| Room available under the original appraisal | $59,750 |
| New combined limit (65% of $545,000) | $354,250 |
| Room available under the fresh appraisal | $14,250 |
| Room lost at this renewal | $45,500 |
| The mortgage portion itself | Figure |
|---|---|
| Renewal rate | 4.85% |
| Payment, 18 years remaining | $2,354 |
| TDS (payment + tax + heat + car loan) ÷ $8,600 income | 35.7% |
35.7% TDS confirms the mortgage portion was never the issue at this renewal -- the entire story is in the credit-limit recalculation, not the debt itself.
The solution
A mortgage agent licensed under Ontario’s Mortgage Brokerages, Lenders and Administrators Act treated the credit-limit recalculation as its own, separate question from the mortgage renewal itself.
First, requested the fresh appraisal and the recalculated combined limit well ahead of the renewal date, rather than let the household discover the smaller number mid-renovation. A $45,500 gap is much easier to plan around before contracts are signed than after.
Second, confirmed directly with the lender that the 65% combined-limit percentage itself hadn't changed -- only the appraisal it was being applied against had. This ruled out a policy change as the explanation and kept the conversation focused on the actual number.
Third, re-scoped the renovation plan to the $14,250 the re-advanceable product could now actually support, rather than the $59,750 figure the household had been carrying since setup. A mortgage agent quantifying the gap early is what kept the project from stalling mid-build.
The outcome
The mortgage renewed unchanged at $2,354/mo, and the renovation was re-scoped to the $14,250 the re-advanceable limit could actually support, instead of stalling mid-project on a limit nobody had re-checked.
This is a same-lender renewal with no CMHC ratio ceiling -- the 35.7% TDS figure is informational, confirming the mortgage portion itself was never the concern.
What to take from this file
- 01A re-advanceable product's combined limit is recalculated at renewal, not fixed at setup. The same percentage applied to a lower appraisal produces a smaller limit, even with no change to either balance.
- 02The mortgage portion and the credit-limit calculation are two separate questions. A renewal can leave the mortgage completely unchanged while still shrinking the available HELOC room.
- 03Request the fresh appraisal and recalculated limit before the household commits to spending against the old number. A gap is far easier to plan around early than mid-project.
- 04Confirm whether the lender's own percentage changed, or just the appraisal it's applied to. The two have very different implications for other properties or future renewals.
- 05Quantify the exact room lost, not just that it shrank. A specific dollar figure lets a renovation plan be re-scoped correctly instead of guessed at.
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.
- ▸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:
- ▸4.85% rate — rates move daily; not a quote.
- ▸the 65% combined-limit percentage — each re-advanceable mortgage product sets its own combined-limit percentage against appraised value; this is lender policy, not a regulatory rule, and varies by product.
- ▸the TDS figure — this is a same-lender renewal with no CMHC ceiling -- the number is informational only.
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.