The client
Buyers in Guelph purchased a new build for $650,000, $65,000 (10%) down, $13,400/month combined income. Their mortgage commitment carried a rate hold of 4.75%, sized to the builder's originally quoted completion date.
Purchase price
$650,000
New build, Guelph
Down payment
$65,000 (10%)
Insured file
Original rate hold
4.75%
Sized to the builder's original completion date
Rate once the hold expired
5.65%
Current at the actual closing date
Combined income
$13,400/month
Both salaried
The problem
A rate hold on a new-build purchase is only ever as good as the completion date it was priced against. This builder's own construction delays pushed the real closing well past that date, and the hold expired months before the home actually did -- leaving the buyers to fund at whatever rate happened to be current on the day the builder finally handed over the keys, not the rate they'd been budgeting around for over a year.
What the buyers had actually locked in, and for how long
- ▸A 4.75% rate hold, sized to the builder's original, published completion date
- ▸A rate hold has its own expiry window set by the lender -- it does not automatically extend just because the builder itself runs late
- ▸Once expired, the file requalifies and funds at whatever the lender's current rate happens to be on the day it actually closes
This wasn't a draw-schedule problem, a holdback, an insurance lapse or a permit issue -- the construction itself finished; it just finished on the builder's own calendar, not the mortgage commitment's.
The numbers
The gap between the held rate and the rate the file actually funded at is the entire story here -- everything else about the purchase was routine.
| The insured new-build purchase, held rate vs. actual | Amount |
|---|---|
| Purchase price | $650,000 |
| Down payment (10%) | $65,000 |
| Base mortgage | $585,000 |
| CMHC premium — 3.10% at 85.01-90% LTV | +$18,135 |
| Total insured mortgage | $603,135 |
| Funding the mortgage | Held rate (expired) | Actual rate (funded) |
|---|---|---|
| Contract rate | 4.75% | 5.65% |
| Minimum qualifying rate | 6.75% | 7.65% |
| Qualifying payment, 25 years | $4,132/mo | $4,469/mo |
| Actual contract payment, 25 years | $3,423/mo | $3,734/mo |
The expired hold cost the buyers $311/mo in real, ongoing payment -- $3,734 against the $3,423 the surviving 4.75% hold would have carried. Qualifying at the actual 7.65% minimum qualifying rate, GDS lands at 37.4% and TDS at 39.7%, both inside CMHC's 39% and 44% maximums, with the qualifying test run against the harder of the two rates throughout.
The solution
A mortgage agent tracked the builder's own delay notices against the commitment's hold-expiry date from the day the file was first submitted.
First, logged the rate hold's exact expiry date alongside the builder's published (and repeatedly revised) completion estimate, so the gap between the two was visible months before it became a problem.
Second, gave the buyers a written estimate of what an expired hold would actually cost in payment terms, using the construction and draw mortgage process as the frame for explaining why a new-build's financing timeline isn't fully in the lender's or the buyer's control.
Third, locked a fresh rate the moment a firm closing date was confirmed, rather than waiting and risking a further increase between confirmation and the actual close.
The outcome
The mortgage funded at 5.65%, $3,734/mo against the $3,423/mo the expired 4.75% hold would have carried -- a $311/mo difference the buyers had budgeted for months in advance rather than discovering at closing. GDS settled at 37.4% and TDS at 39.7%, both inside CMHC's maximums, and Ontario's land transfer tax on the purchase came to $9,475.
The length of any rate hold, and whether a lender will extend one for a builder's delay, is set by that lender's own policy -- not restated here as a fixed rule.
What to take from this file
- 01A rate hold is sized to a completion date, not to the construction itself. If the builder runs late, the hold can expire long before the home is actually ready.
- 02Track the hold's expiry against the builder's own delay notices, not just the original schedule. The gap is visible months in advance if someone is watching for it.
- 03Give the client a real number for what an expired hold would cost, before it happens. A written estimate turns a surprise into a budgeted outcome.
- 04This is not a draw-schedule, holdback, insurance or permit problem. The build finished; it just finished on the builder's calendar, not the mortgage's.
- 05Lock a fresh rate as soon as a firm closing date exists. Waiting for the actual closing risks a further increase on top of the one already absorbed.
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.
- ▸CMHC — Purchase (Mortgage Loan Insurance) — default-insurance premium schedule by LTV band (25-year amortization).
- ▸CMHC — CMHC Home Start — minimum down payment tiers (5%/10%) and the $1.5M insured price cap.
- ▸OSFI — Minimum qualifying rate for uninsured mortgages — the minimum qualifying rate — greater of contract rate + 2% or 5.25%.
- ▸CMHC — CMHC Reviews Underwriting Criteria — GDS 39% / TDS 44% maximums and the 600 credit-score floor for insured files.
- ▸Ontario.ca — Calculating Land Transfer Tax / Land Transfer Tax Refunds for First-Time Homebuyers — Ontario's marginal land transfer tax brackets and first-time-buyer refund.
- ▸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:
- ▸4.75% / 5.65% rates — rates move daily; neither is a quote.
- ▸the length of a rate hold — each lender sets its own rate-hold window and renewal policy for a purchase commitment; not restated here as a fixed rule.
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.