Mortgage Insurance Rule Changes Enable Homeowners to Add Secondary Suites

Cynthia Dreger • January 2, 2025

As housing affordability challenges persist across Canada, innovative solutions are reshaping the way homeowners can contribute to housing supply. Starting January 15, 2025, new mortgage insurance rule changes will allow Canadian homeowners to access insured refinancing options to create secondary suites, such as basement apartments or laneway homes.


This move, announced in Budget 2024 and detailed by the Department of Finance Canada, is part of a broader strategy to increase housing density and improve affordability while offering homeowners the chance to generate additional income.


Why These Changes Matter

Historically, converting extra space into rental units has been both costly and mired in municipal red tape. Recent zoning reforms across Canada’s major cities, driven by Housing Accelerator Fund agreements, are reducing these barriers. The creation of secondary suites not only expands housing supply but also provides financial benefits to homeowners, such as offering seniors additional income to support aging in place.


Key Parameters for the New Rules

The new mortgage insurance program is designed to enable homeowners to build legal, self-contained secondary suites that comply with municipal requirements.


Here are the essential details:

Eligibility Requirements

Homeowners must already own the property.

The homeowner or a close relative must occupy one of the existing units.

Additional units must not be used as short-term rentals.


Project Specifications

New units must be fully self-contained with separate entrances (e.g., basement suites, laneway homes).

Up to four total dwelling units are allowed, including existing units.


Financial Parameters

The “as improved” property value must be less than $2 million.

Homeowners can refinance up to 90% of the property’s value, including the enhanced value from secondary suites.

The maximum amortization period is 30 years.

Additional financing must not exceed the project’s costs.


When Do These Rules Take Effect?

Starting January 15, 2025, lenders can submit applications for mortgage insurance under these updated parameters. This applies to all eligible properties across Canada, provided the new units align with municipal zoning requirements.


What This Means for Homeowners

For homeowners with underutilized space, such as basements or detached garages, this new program offers an opportunity to increase property value and create a source of long-term income. By building legal secondary suites, homeowners can contribute to Canada’s rental housing market while gaining financial security.


A Step Toward Housing Solutions

As housing supply remains a pressing issue, these mortgage insurance changes reflect a commitment to practical, homeowner-driven solutions. Whether you’re a senior looking to age in place or a family seeking to maximize your property’s potential, these changes represent an exciting opportunity to invest in your home and your community.

Stay informed and explore your options with your lender to determine if this program is right for you. The path to unlocking your property’s potential begins in 2025.


CYNTHIA DREGER
By Cynthia Dreger June 11, 2025
If you’re looking to do some home renovations but don’t have all the cash up front to pay for materials and contractors, here are a few ways to use mortgage financing to bring everything together. Existing Home Owners - Mortgage Refinance Probably the most straightforward solution, if you’re an existing homeowner, would be to access home equity through a mortgage refinance. Depending on the terms of your existing mortgage, a mid-term mortgage refinance might make good financial sense; there’s even a chance of lowering your overall cost of borrowing while adding the cost of the renovations to your mortgage. As your financial situation is unique, it never hurts to have the conversation, run the numbers, and look at your options. Let’s talk! If you're not in a huge rush, it might be worth waiting until your existing term is up for renewal. This is a great time to refinance as you won’t incur a penalty to break your existing mortgage. Now, regardless of when you refinance, mid-term or at renewal, you’re able to access up to 80% of the appraised value of your home, assuming you qualify for the increased mortgage amount. Home Equity Line of Credit Instead of talking with a bank about an unsecured line of credit, if you have significant home equity, a home equity line of credit (HELOC) could be a better option for you. An unsecured line of credit usually comes with a pretty high rate. In contrast, a HELOC uses your home as collateral, allowing the lender to give you considerably more favourable terms. There are several different ways to use a HELOC, so if you’d like to talk more about what this could look like for you, connect anytime! Buying a Property - Purchase Plus Improvements If you’re looking to purchase a property that could use some work, some lenders will allow you to add extra money to your mortgage to cover the cost of renovations. This is called a purchase plus improvements. The key thing to keep in mind is that the renovations must increase the value of the property. There is a process to follow and a lot of details to go over, but we can do this together. So if you’d like to discuss using your mortgage to cover the cost of renovating your home, please connect anytime!
By Cynthia Dreger June 4, 2025
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