Treadstone Associates
Case File № 193 · Private Lending & Exit

Bridging a knob-and-tube problem to a conventional mortgage in Williams Lake

Active knob-and-tube wiring made the property unfinanceable by any A-lender. A private bridge loan funded the purchase; once an electrician's completion certificate cleared the rewiring, the file took out to a conventional mortgage at 68.9% LTV.

British ColumbiaUninsured · 69% LTVFiled August 7, 20265 min read
68.9%

loan-to-value on the post-remediation take-out

5mo

on a private bridge while the rewiring was completed

22.0%

GDS on the conventional take-out mortgage

Anonymized illustration. The borrowers, dollar figures, and rates in this file are an illustrative composite — no real client is identifiable, and any rate shown is illustrative, not a quote. The rules are real: every regulatory figure is cited to its source in the Sources section, and the math computes exactly as shown.

№ 01

The client

A dual-income couple buying an older character home in Williams Lake. The home inspection flagged active knob-and-tube wiring throughout much of the house — a defect no A-lender on the broker’s shelf would fund against, insured or not.

Borrowers

Dual-income couple, salaried

Combined income $9,833/month

Property

$340,000 character home, Williams Lake

Property tax $260/mo; heat estimate $150/mo

The defect

Active knob-and-tube wiring throughout

Flagged at the home inspection; no A-lender would fund it as-is

Purchase financing

Private bridge loan, $238,000 (70% LTV)

9.49% interest-only

Remediation

Full rewire by a licensed electrician

$6,000 balance outstanding at the take-out

Other debt

One auto loan at $300/mo

Current

№ 02

The problem

Privately funded mortgages remain a small but persistent slice of the Canadian lending market by lender type, and files like this are exactly why: a title or condition defect that no A-lender’s overlay accepts, on a property and borrower who otherwise qualify without difficulty.

The loan was structured from day one as bridge financing — sized to be repaid in full once conventional financing became available, not a long-term hold. The private lender priced to the risk of the wiring, not to the borrowers’ income or credit, which is precisely why the LTV sat at 70% rather than the 80% a conventional lender might otherwise offer.

№ 03

The numbers

The bridge carried the file for five months while the rewiring was completed and inspected.

The bridge, and what it actually costAmount
Private bridge loan (70% LTV)$238,000
Monthly cost at 9.49% interest-only$1,882
Interest paid over the 5-month bridge$9,410

Interest was paid monthly from income, not added to the balance — the $238,000 owed on day one is the same $238,000 owed at the take-out.

Building the take-out mortgageAmount
Bridge principal$238,000
Remaining rewiring cost rolled into the take-out$6,000
Private lender’s discharge and administration fee$750
New mortgage$244,750
Loan-to-value on the $355,000 post-remediation appraisal68.9%

Private mortgage costs generally fall into three buckets — the rate, the lender or broker fees, and any discharge or renewal charge — and the $750 discharge fee here sits squarely in the third.

Qualifying the conventional take-out

Rate & paymentsFigure
Contract rate — 5-year fixed (illustrative, not a quote)5.29%
Minimum qualifying rate — greater of contract + 2% and 5.25%7.29%
Monthly payment at the qualifying rate$1,758
Monthly payment at the contract rate$1,464
GDS / TDSMonthly
Payment at the qualifying rate$1,758
Property tax$260
Heat$150
GDS: $2,168 ÷ $9,833 → 22.0%
Auto loan$300
TDS: $2,468 ÷ $9,833 → 25.1%
№ 04

The solution

A BCFSA-licensed submortgage broker structured the file in two stages from the outset, so the take-out was never a question of if, only when.

At purchase: placed the private bridge with a lender comfortable funding against condition, not credit, at a conservative 70% LTV that reflected the wiring risk rather than the borrowers’.

During remediation: coordinated the electrician’s scope and timeline against the private lender’s renewal date, so the rewiring finished with room to spare before the bridge would otherwise have needed extending.

At take-out: ordered a fresh appraisal reflecting the completed rewiring and followed the file, step by step, moving a private mortgage back to an A lender.

Electrician’s completion certificate for the rewiring
Updated appraisal reflecting the remediation
90-day funds for the remaining rewiring balance and discharge fee
Payout statement from the private lender
Purchase and title documents
№ 05

The outcome

Funded: a conventional uninsured take-out mortgage at 68.9% LTV, 5-year fixed, 25-year amortization, with the private bridge paid out and discharged in full.

The couple’s own funds covered the remaining rewiring balance and discharge fee well ahead of closing, so no further bridging was needed between the electrician’s certificate and the take-out.

№ 06

What to take from this file

  • 01An insurability problem is a lending problem, not just an inspection problem. Flag active knob-and-tube wiring the moment it appears — it will decide the financing before it decides the price.
  • 02Structure a private bridge to be repaid, with a real exit path. Remediation plus an updated appraisal is a plan; an open-ended private hold is not.
  • 03A post-remediation appraisal often recovers value a private lender’s conservative LTV did not credit. Order it before assuming the file can only refinance at the original, discounted value.
  • 04Price the bridge’s carrying cost by the month before recommending it. Interest-only feels manageable monthly; over a multi-month remediation window it adds up.

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.

Illustrative in this file — lender-specific, not rules:

  • 9.49% bridge rate / 5.29% take-out contract rate — rates move daily and are lender-specific; not quotes.
  • the electrician's fixed-price rewiring quote — a market cost, not a regulatory figure.
  • 5-month bridge duration — illustrative; the actual remediation-to-appraisal timeline varies by project.

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.

First published 7 August 2026Rules last verified 7 August 2026Next scheduled review 7 February 2027

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.

Treadstone fulfillment

Files like this are daily work for our desk.

Document collection, ratio math under multiple treatments, lender placement notes, and submission-ready packaging — for Canadian mortgage brokers who would rather be in front of clients.