The client
A couple self-building in Steinbach, Manitoba, on land they purchased for the project, with a $268,000 hard-cost construction mortgage budget released in stages. Every draw through the build was sized against loan-to-cost, and the project came in exactly on budget. At completion, the rule the lender uses changes.
Land purchase
$54,000
Manitoba land transfer tax applies
Construction budget
$268,000 hard costs
Total project cost $322,000
Equity contribution
$64,400 (20%)
Funded loan-to-cost draws through the build
As-complete appraisal
$280,000
Below the $322,000 it actually cost to build
Combined income
$7,300/month
Both employed, T4
The problem
During construction, the lender releases each draw against loan-to-cost — how much of the actual, incurred cost the mortgage is allowed to cover as work is completed. At completion, the final mortgage is capped on loan-to-VALUE against the as-complete appraisal instead. Those two ceilings don't have to agree.
Two ceilings, two different numbers
- ▸20% equity funded 80% of cost through the build — $257,600 in draws, right on budget
- ▸The as-complete appraisal came in at only $280,000, below the $322,000 it cost to build
- ▸At 90% loan-to-value against that appraisal, the final mortgage caps at just $252,000 — less than what had already been advanced
Nothing went wrong on this build. Every invoice matched the budget, every draw was justified by completed work. The appraisal simply didn't fully credit the finished home at what it cost to construct — not unusual in a market where building costs can outrun comparable resale values.
The numbers
The gap here isn't a cost overrun in the usual sense — nothing exceeded budget. It's the difference between what a lender will advance against cost while building, and what it will actually convert into a mortgage once the appraisal is in.
| Cost-based draws vs. the value-based final mortgage | Amount |
|---|---|
| Total project cost (land + construction) | $322,000 |
| Equity contribution (20%) | −$64,400 |
| Loan-to-cost draws released through the build | $257,600 |
| Final insured mortgage at 90% LTV against the $280,000 as-complete value | $252,000 |
| Shortfall at completion | Figure |
|---|---|
| Amount already advanced (loan-to-cost) | $257,600 |
| Final mortgage the appraisal actually supports (loan-to-value) | $252,000 |
| Cash needed from the buyers to close the gap | $5,600 |
Qualifying on the final, value-based mortgage
| Ratio check | Figure |
|---|---|
| Total insured mortgage (base $252,000 + $7,812 premium) | $259,812 |
| Qualifying payment, 25 years | $1,786/mo |
| GDS (payment + $250 tax + $120 heat) ÷ $7,300 income | 29.5% |
| TDS (GDS numerator + $280 car loan) ÷ $7,300 income | 33.4% |
The solution
An MSC-registered Manitoba mortgage broker walked the buyers through the two different ceilings before the final draw came due, not after.
First, explained the loan-to-cost/loan-to-value distinction at the start of the project, so the buyers understood the draws they were seeing during construction weren't a guarantee of the final mortgage amount.
Second, ordered the as-complete appraisal as soon as the build was substantially finished, giving the couple maximum notice of the $5,600 gap before the closing date locked in.
Third, sized the cash injection to close the gap exactly, confirmed against both the appraisal and the lender's final commitment, rather than estimating and risking a second shortfall at the last moment.
The outcome & the closing math
The self-build converted to a final insured mortgage of $259,812, with the $5,600 shortfall covered in cash at completion. GDS came to 29.5% and TDS to 33.4%, both comfortably inside CMHC's maximums.
Manitoba's land transfer tax on the $54,000 land purchase came to $120, paid at the land closing; Manitoba charges no provincial sales tax on the default-insurance premium itself.
What to take from this file
- 01Loan-to-cost and loan-to-value are two different ceilings, not the same rule twice. A build can stay perfectly on budget and still hit a lower ceiling at completion.
- 02Building cost is not the same as appraised value. A modest market can produce an as-complete appraisal below what construction actually cost.
- 03Explain both ceilings before the first draw, not at the last one. A buyer who understands the distinction from day one isn't blindsided by a completion-stage gap.
- 04Order the as-complete appraisal the moment the build is substantially finished. Early notice is what turns a shortfall into a planned cash injection instead of a closing-week scramble.
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.
- ▸Government of Manitoba — Land Transfer Tax — Manitoba's land transfer tax brackets (no first-time-buyer rebate).
- ▸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:
- ▸4.79% contract rate — rates move daily; not a quote.
- ▸80% loan-to-cost draw ceiling during the build — each construction lender sets its own loan-to-cost advance ceiling; 20% equity-in is illustrative of common practice, not a published 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.