Mortgage Insurance Rule Changes Enable Homeowners to Add Secondary Suites

Welbanks Mortgage Group • 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.

Lee Welbanks
By Lee Welbanks December 10, 2025
Bank of Canada maintains policy rate at 2.1/4%. FOR IMMEDIATE RELEASE Media Relations Ottawa, Ontario December 10, 2025 The Bank of Canada today held its target for the overnight rate at 2.25%, with the Bank Rate at 2.5% and the deposit rate at 2.20%. Major economies around the world continue to show resilience to US trade protectionism, but uncertainty is still high. In the United States, economic growth is being supported by strong consumption and a surge in AI investment. The US government shutdown caused volatility in quarterly growth and delayed the release of some key economic data. Tariffs are causing some upward pressure on US inflation. In the euro area, economic growth has been stronger than expected, with the services sector showing particular resilience. In China, soft domestic demand, including more weakness in the housing market, is weighing on growth. Global financial conditions, oil prices, and the Canadian dollar are all roughly unchanged since the Bank’s October Monetary Policy Report (MPR). Canada’s economy grew by a surprisingly strong 2.6% in the third quarter, even as final domestic demand was flat. The increase in GDP largely reflected volatility in trade. The Bank expects final domestic demand will grow in the fourth quarter, but with an anticipated decline in net exports, GDP will likely be weak. Growth is forecast to pick up in 2026, although uncertainty remains high and large swings in trade may continue to cause quarterly volatility. Canada’s labour market is showing some signs of improvement. Employment has shown solid gains in the past three months and the unemployment rate declined to 6.5% in November. Nevertheless, job markets in trade-sensitive sectors remain weak and economy-wide hiring intentions continue to be subdued. CPI inflation slowed to 2.2% in October, as gasoline prices fell and food prices rose more slowly. CPI inflation has been close to the 2% target for more than a year, while measures of core inflation remain in the range of 2½% to 3%. The Bank assesses that underlying inflation is still around 2½%. In the near term, CPI inflation is likely to be higher due to the effects of last year’s GST/HST holiday on the prices of some goods and services. Looking through this choppiness, the Bank expects ongoing economic slack to roughly offset cost pressures associated with the reconfiguration of trade, keeping CPI inflation close to the 2% target. If inflation and economic activity evolve broadly in line with the October projection, Governing Council sees the current policy rate at about the right level to keep inflation close to 2% while helping the economy through this period of structural adjustment. Uncertainty remains elevated. If the outlook changes, we are prepared to respond. The Bank is focused on ensuring that Canadians continue to have confidence in price stability through this period of global upheaval. Information note The next scheduled date for announcing the overnight rate target is January 28, 2026. The Bank’s next MPR will be released at the same time.
By Lee Welbanks December 3, 2025
Wondering If Now’s the Right Time to Buy a Home? Start With These Questions Instead. Whether you're looking to buy your first home, move into something bigger, downsize, or find that perfect place to retire, it’s normal to feel unsure—especially with all the noise in the news about the economy and the housing market. The truth is, even in the most stable times, predicting the “perfect” time to buy a home is incredibly hard. The market will always have its ups and downs, and the headlines will never give you the full story. So instead of trying to time the market, here’s a different approach: Focus on your personal readiness—because that’s what truly matters. Here are some key questions to reflect on that can help bring clarity: Would owning a home right now put me in a stronger financial position in the long run? Can I comfortably afford a mortgage while maintaining the lifestyle I want? Is my job or income stable enough to support a new home? Do I have enough saved for a down payment, closing costs, and a little buffer? How long do I plan to stay in the property? If I had to sell earlier than planned, would I be financially okay? Will buying a home now support my long-term goals? Am I ready because I want to buy, or because I feel pressure to act quickly? Am I hesitating because of market fears, or do I have legitimate concerns? These are personal questions, not market ones—and that’s the point. The economy might change tomorrow, but your answers today can guide you toward a decision that actually fits your life. Here’s How I Can Help Buying a home doesn’t have to be stressful when you have a plan and someone to guide you through it. If you want to explore your options, talk through your goals, or just get a better sense of what’s possible, I’m here to help. The best place to start? A mortgage pre-approval . It’s free, it doesn’t lock you into anything, and it gives you a clear picture of what you can afford—so you can move forward with confidence, whether that means buying now or waiting. You don’t have to figure this out alone. If you’re curious, let’s talk. Together, we can map out a homebuying plan that works for you.