Methodology · v1.1

How we verify every walk-away.

Every figure published on Nest is sourced from public records, lender statements, or seller-supplied documentation. Self-declared amounts are flagged. We do not publish what we cannot verify.

Document Status
Version1.1
Last updated2026-05-31
JurisdictionsAB only
Legal reviewPending
01 · The formula

What goes into a walk-away.

A verified walk-away is the sum of five line items. Each has its own verification method. Each appears on the listing as a separate, auditable figure.

Verified Walk-Away =
Outstanding mortgage balance
From your lender · current payoff figure
Tier 1
+
Closing costs at sale
Legal, discharge, adjustments · calculated
Tier 1
+
Original cost basis
Purchase price + closing costs at purchase
Tier 1
+
Documented carrying costs
Interest, property tax, insurance, condo fees
Tier 2
+
Documented capital improvements
Receipted improvements with invoices on file
Tier 2
Verified walk-away
02 · Verification tiers

Three tiers. One standard.

Every line on a listing is tagged with how it was verified. Public-record-verified lines come from documents authored by third parties — Land Titles, lenders, municipal offices — that the seller obtains and uploads. Seller-documented lines come from receipts, invoices, and policies the seller curated and retained. Seller-stated lines are flagged and never count toward the verified figure.

Tier 1

Public-record verified

Documents authored by third parties — Alberta Land Titles, federally-regulated lenders, municipal tax offices. The seller obtains and uploads each document; Nest reviews it. The document’s authority comes from who wrote it.

Authored by
  • · Alberta Land Titles
  • · Federally regulated lenders
  • · City of Calgary tax office
  • · City of Edmonton tax office
Tier 2

Seller-documented

Documents the seller curated and retained — contractor invoices, improvement receipts, insurance policies, condo corporation statements. Nest reviews each line.

Documents
  • · Contractor invoices & permits
  • · Annual mortgage interest statements
  • · Insurance policies
  • · Condo corporation statements
Tier 3

Seller-stated

Amounts the seller claims but cannot document. Shown as a separate line on every listing. Never counted toward the verified figure.

Treatment
  • · Shown as a separate line
  • · Never adds to the verified figure
  • · Marked with a warning badge
  • · Visible to all buyers
03 · Line items

Every line, explained.

Each component of the walk-away is documented below: what it is, how we verify it, and what we need from the seller.

01
Tier 1 · Public-record verified

Original purchase price

The amount paid at original acquisition, recorded on title at the time of transfer.

Source
Alberta Land Titles · Title certificate
From the seller
Title certificate, obtained from Alberta Land Titles and uploaded by the seller.
02
Tier 1 · Public-record verified

Outstanding mortgage balance

The current payoff figure owed to the seller's lender, inclusive of discharge fees and per-diem interest projected to estimated closing.

Source
Seller's federally regulated lender · payoff statement.
From the seller
Mortgage payoff statement dated within 30 days of listing.
+Private mortgages
Private mortgage holders must upload the original loan agreement plus a current statement of balance from the lender. Nest reviews these case-by-case.
03
Tier 1 · Public-record verified

Closing costs at sale

The costs the seller will pay to close: legal fees, mortgage discharge fee, statement of adjustments, and (for condos) an estoppel certificate.

Source
Nest Fee Predictor · province + property type + price.
From the seller
Nothing — calculated. Final figure adjusts at closing.
04
Tier 2 · Seller-documented

Original cost basis additions

Costs paid at the time of the original purchase that the seller is entitled to recover: land transfer fees, legal fees, statement adjustments. Alberta does not levy provincial land transfer tax, so this line is typically modest.

Source
Statement of adjustments from original purchase.
From the seller
Closing documents from purchase. If unavailable, this line is $0.
05
Tier 1 · Public-record verified

Mortgage interest paid

Total interest paid on the mortgage across the period of ownership. Only interest is counted — principal payments are reflected in the reduced mortgage balance.

Source
Annual mortgage statements from lender.
From the seller
Annual interest statement, or a comprehensive interest summary issued by the lender.
06
Tier 1 · Public-record verified

Property tax paid

Total municipal property tax paid since the seller acquired the home.

Source
City of Calgary or City of Edmonton · tax certificate.
From the seller
Tax certificate, obtained from the City and uploaded by the seller.
07
Tier 2 · Seller-documented

Insurance premiums

Total home or condo insurance premiums paid across ownership. Standard coverage only.

Source
Annual policy statements from the insurer.
From the seller
Policy documents for each year of ownership, or a payment history from the insurer.
08
Tier 2 · Seller-documented

Condo fees

Regular monthly condo fees paid since acquisition. Special assessments are separate and not counted unless tied to a verifiable improvement.

Source
Condo corporation statements or estoppel certificate.
From the seller
Annual fee statements, or corporation's payment ledger.
09
Tier 2 · Seller-documented

Capital improvements

Permanent additions or upgrades: kitchen renovations, roof replacement, windows, additions, structural work, major mechanical systems. Each improvement must have a contractor invoice or receipt on file.

Source
Contractor invoices · receipts · municipal permits.
From the seller
Invoice with vendor name, description of work, amount, and date. Permits where municipal code required them.
+What counts as a capital improvement
We follow CRA's working definition of a capital expenditure: a betterment of the property that extends its useful life, expands its capacity, or upgrades it beyond its original condition. Routine maintenance, repairs, cosmetic updates under $1,000, and personal property are excluded.
04 · The verification trail

Every listing carries its own verification record.

Every figure on a listing is traceable to a specific document, a reviewer, and a date. Nest preserves the verification record for every walk-away and surfaces it to buyers on request.

Example verification record
412 9A Street NW, Calgary
Listing #NV-2026-00184
Title certificate · Alberta Land Titles
2026-04-12 09:14 · Reviewer NV-04 · Document on file
Mortgage payoff statement · RBC
2026-04-14 14:22 · Statement #RBC-4892-A · Hash 8f3e...c2a1
Property tax certificate · City of Calgary
2026-04-15 11:14 · Reviewer NV-04 · Document on file
4 improvement receipts · Seller-documented
2026-04-15 11:08 · Reviewer NV-04 · 4 docs · Kitchen, roof, windows, HVAC
Insurance + condo summary · Seller-documented
2026-04-15 13:45 · Reviewer NV-04 · 7 docs
Walk-away published · v1
2026-04-15 16:00 · No revisions · Live
05 · What we exclude

What a walk-away never includes.

The walk-away is a record of actual money paid, not a projection of what the home could be worth. The following are excluded by policy.

×

Routine maintenance

Painting, landscaping, snow removal, minor repairs.

×

Personal property

Furniture, appliances unless built-in, decor, electronics.

×

Opportunity cost

What the down payment or equity could have earned elsewhere.

×

Sweat equity

The seller's own labour on renovations or improvements.

×

Inflation adjustment

Past dollars are not converted to current dollars. We use nominal figures.

×

Future commission savings

The 5% you save by listing on Nest is yours, not part of the walk-away.

06 · Edge cases

When verification gets complicated.

Inherited or gifted properties+
The cost basis is the fair market value at the time of inheritance or gift, established by a certified appraisal. Documented carrying costs and improvements accrue from that date.
Properties refinanced multiple times+
Only the current mortgage matters for the balance figure. Interest paid is summed across all mortgages on the property. If cash was extracted in a refinance, it does not reduce the cost basis.
Joint ownership and partial buyouts+
The walk-away reflects the total cost basis of the property, not a proportional share. Sellers may indicate ownership percentage separately on the listing. The figure does not adjust automatically.
Renovations done without permits+
Where municipal code required a permit and none was pulled, the improvement is excluded from the verified walk-away. The seller may declare it as a Tier 3 line item, which is shown but not counted.
Pre-record properties+
Homes acquired before reliable public records existed are verified using the earliest available record plus a seller affidavit covering the pre-record period. These listings are flagged.
Missing documentation+
Any line item the seller cannot document is excluded from the verified figure. Sellers may still list it as a Tier 3 line. We do not approximate or fill in missing documentation.
07 · Disputes & corrections

If a number is wrong, we want to know.

Buyers

Flag a suspected error

Buyers can flag a suspected error on any listing. Submissions are reviewed within three business days by a verification team member who is not the original reviewer.

Sellers

Request a re-review

If a line was miscalculated, sellers can request a re-review. Approved corrections are reflected on the listing, and the original figure is preserved in the verification record.

All disputes

Outcomes are logged. Sellers cannot delete a verification record; they can only add a correction notice. The verification history of any listing is permanent.

Disclaimer

Nest is not a real estate broker, lender, lawyer, accountant, or financial advisor. This methodology describes how we verify figures published on the platform. It is not financial, tax, or legal advice. Sellers and buyers should retain independent legal and financial counsel before completing any transaction.

Verified Walk-Away figures reflect documented historical costs, not market value. A walk-away above current market does not mean the home will sell at that price. A walk-away below current market does not constitute investment advice.

Methodology version
v1.1 · 2026-05-31
Next scheduled review
2026-11-27
Material changes
30 days’ notice to all active sellers before a new version takes effect.