Commercial Mortgage Investing in Canada

Commercial mortgage investing in Canada, lending against apartment buildings, plazas, offices and industrial property, appears in private-lending portfolios, syndicated offerings and some mortgage investment corporations (MICs). An investor who has understood how a home loan works will find that much carries over, but the way a commercial property is valued, the way the loan is repaid and the size of each loan all change the risk.

This guide explains it from the investor’s side: what counts as commercial, how the property is valued, how multi-residential and mixed-use loans fit, how the risk compares with residential lending, and what documents to read. This is general education, not investment, tax or legal advice.

What is commercial mortgage investing in Canada?

Commercial mortgage investing is lending against property that produces income or houses a business. The main categories are multi-residential buildings of five or more units, retail, office, industrial, mixed-use and special-purpose property such as hotels.

Three things set it apart from residential lending. Repayment comes mainly from the property’s net operating income (NOI), its rents minus operating costs, or from a sale or refinance. Value depends largely on that income. And loans are larger, so a pool holds fewer of them and each one is a bigger share of the whole. The security is the same in kind: a registered charge on title, in first or a subordinate position, that lets the lender enforce on default.

How commercial property is valued

Commercial property is valued mainly with the income approach. The appraiser estimates a stable NOI and divides it by a capitalisation rate (cap rate), the ratio of income to price that buyers have accepted for similar properties. A building earning $300,000 of NOI at a 6% cap rate is valued at $5,000,000.

Two other approaches support it. Direct comparison, the main method for homes, checks the result against sales of similar buildings, which are fewer and less alike than house sales. The cost approach, land value plus the depreciated cost of rebuilding, is used for special-purpose property with little rental market.

Appraisals may give an “as-is” value and an “as-stabilised” value, the latter assuming vacancies are leased. The lender’s loan-to-value should be measured against the value that exists today. Because the value is income divided by a rate, small changes in either move it sharply; the worked example below shows by how much.

How commercial loans are underwritten

A commercial lender tests both the asset and the income. The core measures are loan-to-value and the debt service coverage ratio (DSCR), NOI divided by the year’s loan payments; a DSCR above 1.0 means income covers payments, and the margin above 1.0 is the cushion against lost rent.

Beyond those ratios the lender reads the rent roll and leases (who the tenants are, when leases expire, who pays which costs), the operating history, the building’s physical condition, any environmental contamination, and the borrower’s own finances and personal covenant to pay. Our guide to how mortgages are underwritten covers the general method.

Worked example (illustrative)

Assume a mixed-use building in Edmonton, retail at street level and apartments above, with a stable NOI of $300,000. A lender advances a $3,000,000 first mortgage for 12 months, interest-only. All figures are illustrative assumptions, not current rates or a real loan.

1. Value at a 6% cap rate: $300,000 ÷ 6% = $5,000,000.
2. LTV: $3,000,000 ÷ $5,000,000 = 60%.
3. Interest: assume 8%: $3,000,000 × 8% = $240,000 a year.
4. DSCR: $300,000 ÷ $240,000 = 1.25.

Now change the assumptions one at a time.

Nothing about the loan changed, yet the cushion fell from 40% of value to about 22%. A one-point rise in the cap rate alone cut the value by about 14%.

Then the lender’s return, if the loan performs:

5. Lender fee: assume 1%, $30,000.
6. Gross income: $240,000 + $30,000 = $270,000, or 9.0% of $3,000,000.
7. Servicing: assume 1%, $30,000. Net: $240,000, or 8.0%.
8. Tax: for individual investors holding outside a registered plan, this income is taxed at their marginal rate. At an assumed 43%, tax on $240,000 is $103,200, leaving $136,800, about 4.6%. Tax content is as at October 2026; confirm your position with a Canadian tax professional.

Mortgage investments are not guaranteed. Returns are targets, not promises, and principal can be lost. A higher yield on a commercial loan is compensation for higher risk.

Multi-residential mortgage investing

Multi-residential mortgage investing is lending against rental apartment buildings of five or more units. Lenders underwrite them like commercial property, on rent roll, NOI and cap rate, but the tenants are households, which spreads income across many small leases.

That spread is the main advantage: one vacancy rarely threatens the loan. The main constraints are provincial residential tenancy law, which in some provinces limits rent increases and governs how tenants can be asked to leave, and the building’s capital needs. For a MIC, a loan on an apartment building may count toward the 50% residential test if the property falls within the National Housing Act definition of a housing project; the offering memorandum should say how the MIC treats it.

Mixed-use property mortgage investment

A mixed-use property mortgage investment is a loan on a building that combines uses, most often retail or offices below apartments. The lender must value and underwrite both parts: commercial leases with their own expiry dates and tenant risk, and residential tenancies under provincial law.

Mixed-use buildings can draw income from two sources, which helps when one weakens. The trade-off is a narrower buyer pool after default, since some buyers want only residential or only commercial property, and appraisals that depend on fewer close comparables.

Is commercial mortgage investing riskier than residential?

Not by category. Commercial lending concentrates different risks: a few tenants rather than one household, a value tied to income and cap rates, and larger loans that weigh more in a pool. A conservative commercial first mortgage can carry less risk than a high-LTV residential second, and the reverse can also be true. The table sets both sides together.

For the side-by-side detail, see residential vs commercial mortgage investing. For how quickly each kind of property sells after a default, see property value and marketability risk.

Commercial loans inside a MIC

A MIC may hold commercial mortgages, within the tax rules. Paragraph 130.1(6)(f) of the Income Tax Act requires at least 50% of the cost amount of its property to be residential mortgages, certain deposits (at CDIC-insured institutions or credit unions) and money. Paragraphs (h) and (i) cap liabilities at three times equity in a year when those assets are under two-thirds of its property, and five times otherwise.

A MIC’s commercial share therefore affects both its tax status and how much it may borrow. The offering memorandum states the lending policy, and the audited financial statements break the portfolio down by property type.

How commercial mortgage rules differ by province

Enforcement and licensing are provincial. This summary is current as of October 2026.

• Ontario: FSRA licenses mortgage brokerages, agents and administrators under the Mortgage Brokerages, Lenders and Administrators Act, 2006; enforcement is usually by power of sale under the Mortgages Act.
• British Columbia: BCFSA regulates; the Mortgage Services Act is scheduled to come into force on 13 October 2026, making mortgage lending and administration licensed activities (check BCFSA for licensing categories). Enforcement is by judicial foreclosure and court-ordered sale.
• Alberta: RECA regulates mortgage brokers under the Real Estate Act; enforcement is court-supervised.
• Québec: the AMF regulates mortgage brokerage; a creditor enforces a hypothec through hypothecary recourses.

What to check before a commercial mortgage investment

• Value, method and cap rate; as-is versus as-stabilised — appraisal report.
• Tenants, lease terms and expiries — rent roll and leases.
• NOI and its history — operating statements for recent years.
• DSCR and LTV — mortgage commitment or underwriting summary.
• Environmental condition — environmental site assessment.
• Physical condition and capital needs — building condition report.
• Charges and leases on title — title search and title insurance policy.
• Borrower strength — borrower financial statements and personal covenant.
• For a pooled investment — the offering memorandum’s lending policy and the audited financial statements’ breakdown by property type.

Common mistakes with commercial mortgage investments

• Quoting LTV against an as-stabilised value when the building is not yet stabilised.
• Ignoring lease expiries. A strong DSCR can disappear when a major lease ends during the loan term.
• Treating cap rates as fixed. The example shows how one point moves value.
• Assuming a MIC holds only homes. Up to half of its cost amount can be elsewhere.

What this means for a mortgage investor

Commercial mortgage investing lends against property valued on its income, so rents, vacancies and cap rates drive the lender’s cushion, and larger loan sizes concentrate the outcome. It is not riskier than residential lending by definition, but it needs different documents to judge. Any commercial loan should be read on the seven axes on which every mortgage investment varies: the borrower, the property, the loan-to-value, the security position, the term, the jurisdiction and the investment structure.