November 9, 2026 | By Jarrett Hunter, Toronto Realtor®

There’s an interesting housing announcement in the federal government’s latest budget that could create new opportunities for property owners, smaller builders and real estate investors.

On November 5, the Department of Finance released new mortgage insurance rules intended to make financing more accessible for triplexes, fourplexes and smaller multi-unit residential buildings.

The changes are scheduled to take effect February 1, 2027. While they won’t solve Toronto’s housing shortage on their own, they could make some smaller residential developments more financially feasible.

What’s Changing for Triplexes and Fourplexes?

Under the new rules, eligible borrowers financing the construction or purchase of newly built three- and four-unit properties may be able to obtain insured mortgages covering up to 90% of the property’s value.

There will be no maximum property-value cap under this new category, and the borrower will not be required to live in one of the units.

That’s an important change for investors who want to build several rental units but don’t intend to occupy the property themselves.

The maximum amortization for qualifying completed three- and four-unit properties will be 30 years. Borrowers will still have to meet credit, income and debt-servicing requirements.

It’s also worth emphasizing that mortgage default insurance protects the lender against certain losses. It is not a grant or a guarantee that an applicant will be approved for financing.

What About Small Apartment Buildings?

The government is also expanding mortgage insurance options for residential properties containing between five and 50 self-contained units.

Eligible newly constructed buildings may qualify for insured financing of up to 90% of the property value and amortizations of up to 50 years.

Different maximum financing and amortization limits apply to existing buildings and other transactions.

The five-to-50-unit category also has specific property-ownership requirements. It generally applies to a residential building held under a single legal title, not a collection of separately titled condominium units assembled into one investment portfolio.

Why Does This Matter in Toronto?

Toronto needs more housing, but not every new home has to be part of a large condominium tower.

Triplexes, fourplexes and smaller rental buildings can provide additional housing options within established neighbourhoods, sometimes referred to as missing-middle housing.

Financing has been one of the challenges for owners and small builders considering these projects. Making insured financing more accessible may help some developments proceed that would otherwise struggle to obtain funding.

However, financing is only part of the equation. Construction expenses, municipal approvals, zoning requirements, servicing and the expected rental income must also make sense.

Could This Benefit Existing Homeowners?

Potentially, particularly for owners who have considered building new multi-unit housing on suitable properties.

But the newly announced triplex and fourplex financing category applies to eligible new construction and newly built properties. It should not be interpreted as an automatic financing benefit for every existing duplex, triplex or rental house.

Anyone considering a project should first confirm the property’s development potential with the City and review the financing requirements with an experienced mortgage professional.

Source: Department of Finance Canada — Mortgage Insurance Rule Changes, November 5, 2026

Jarrett Hunter | Realtor® | RE/MAX Your Community Realty