Secondary Suites and Calgary’s Changing Housing Landscape

Why Basement Suites and Carriage Homes Are Becoming a Key Part of the City’s Housing Future

Calgary’s housing market has been undergoing significant change over the past decade. Population growth, economic migration, and affordability pressures have all contributed to increased demand for housing across the city. In response, both policymakers and homeowners are increasingly looking for flexible ways to create additional housing without dramatically altering the character of established neighborhoods.

One solution that has moved steadily into the spotlight is the secondary suite.

Basement apartments, backyard suites, and carriage homes above detached garages are becoming far more common throughout Calgary. What was once an informal and sometimes controversial component of the rental market is now widely recognized as a legitimate and valuable form of housing.

At Citysearch, we have observed this shift firsthand through the property owners and investors we work with. Many of our clients have either developed legal suites in their homes or purchased properties that include them. Increasingly, we are also seeing newly constructed homes designed from the outset with secondary suites built into the plans.

These changes reflect a broader shift in how Calgarians are approaching housing—both as homeowners and as investors. 

What Is a Secondary Suite?

Under Calgary’s land-use regulations, a secondary suite is a self-contained residential unit located within a primary dwelling.

To be considered legal, the suite must include:

• A kitchen
• A living space
• A sleeping area
• A bathroom
• A separate entrance that can be accessed from outside the home

These requirements ensure that the suite functions as a fully independent living space while meeting safety and building code standards.

In addition to basement suites, Calgary also allows backyard and laneway suites, which are separate living units located on the same property as the main house. These are often constructed above detached garages or built as stand-alone structures in the rear yard.

These types of suites are increasingly attractive because they provide additional housing while maintaining the overall appearance of single-family neighbourhoods.

Why Secondary Suites Are Growing in Popularity

Several factors are driving the increased interest in secondary suites across Calgary.

Mortgage Affordability

For many homeowners, a secondary suite offers a practical way to offset mortgage payments. Rental income can significantly reduce the monthly carrying cost of owning a property.

This approach has become especially attractive to first-time buyers who may otherwise struggle to afford homeownership in today’s market.

Population Growth and Housing Demand

Calgary has experienced strong population growth in recent years, partly driven by interprovincial migration and international newcomers. This growth has placed pressure on the housing supply.

Secondary suites help address this demand by creating additional rental units within existing neighbourhoods without requiring large-scale redevelopment.

Flexible Living Arrangements

Secondary suites also allow for flexible living arrangements. Families may use them to house aging parents, adult children, or extended family members while still maintaining independence.

This flexibility has become increasingly important as housing costs rise and family dynamics evolve. 

A Real Example from a Citysearch Client

At Citysearch, we regularly see how secondary suites can play a strategic role in a homeowner’s long-term financial planning.

One of our clients, a recently graduated engineer, purchased a home in south Calgary that included a legal basement suite. Early in his career, he made a deliberate decision that many young professionals might initially find unconventional.

For approximately five years, he lived in the basement suite while renting out the main and upper levels of the home.

From a lifestyle perspective, this arrangement required some short-term compromise. Living in the smaller suite while tenants occupied the larger space above was not necessarily the most comfortable option.

However, the financial benefits were substantial.

The rental income generated from the upper portion of the property significantly reduced his mortgage burden during those early years. As his career progressed and his financial position improved, he was eventually able to reverse the living arrangement.

Today, he occupies the main home while renting out the basement suite instead.

Because of the rental income he generated during those early years, he has been able to pay down his mortgage far more aggressively than would have otherwise been possible.

It is a perfect example of how a short-term inconvenience can translate into meaningful long-term financial benefits.

New Homes Are Being Built With Suites in Mind

Another clear sign that secondary suites are becoming mainstream is the way new homes are being designed.

Many builders in Calgary now offer “mortgage helper” layouts, where a legal basement suite is incorporated into the home during the construction process.

These homes are designed so that the secondary suite complies with municipal requirements from the outset, eliminating the need for expensive retrofits later.

The trend is not limited to basement suites.

Increasingly, developers are also constructing carriage homes above detached garages, particularly in inner-city communities and redevelopment areas.

At Citysearch, we recently listed two brand-new inner-city homes that feature fully legal carriage suites above detached garages. These homes were designed from the ground up to include a separate living space that can function as a rental unit.

This type of design allows homeowners to generate additional income while maintaining the character of the neighbourhood. 

Backyard and Laneway Suites

Backyard suites—sometimes referred to as laneway homes or carriage houses—are gaining popularity as another form of secondary housing.

These units are separate from the main house but located on the same property, typically above a garage or in the rear yard.

While they can be more expensive to build than basement suites, they offer several advantages:

• Greater privacy for both the homeowner and tenant
• Potential for higher rental income
• Increased overall property value

Laneway homes are particularly attractive in inner-city neighbourhoods where demand for smaller rental units remains strong.

The City’s Support for Legal Suites

Recognizing the role that secondary suites can play in addressing housing shortages, the City of Calgary has introduced several policy changes aimed at making it easier for homeowners to develop legal units.

These reforms have simplified the approval process and created clearer guidelines for property owners.

The city has also introduced incentive programs designed to encourage homeowners to bring existing suites into compliance with modern safety standards.

These programs often help offset costs related to:

• Fire separation between units
• Smoke and carbon monoxide detectors
• Egress windows and safe exits
• Electrical and plumbing upgrades

By focusing on education and incentives rather than strict enforcement, the city has encouraged more homeowners to legalize their suites.

The Importance of Compliance

While secondary suites provide many benefits, it is essential that they comply with municipal regulations and safety codes.

Illegal suites can create risks for both tenants and property owners. They may also create complications during property sales or refinancing.

At Citysearch, we often advise property owners to ensure that any secondary suite is fully permitted and registered with the city before renting it out.

A legal suite not only protects tenants but also adds credibility and value to the property.

A Practical Approach to Density

One of the key advantages of secondary suites is that they provide a gentle form of density.

Rather than dramatically changing neighbourhoods through large-scale developments, secondary suites add housing gradually within existing communities.

This approach helps preserve the character of neighbourhoods while still expanding the city’s housing supply.

As Calgary continues to grow, this balanced approach to density will likely become increasingly important.

Looking Ahead

Secondary suites are likely to remain a critical part of Calgary’s housing landscape in the years ahead.

The combination of rising housing costs, population growth, and evolving housing preferences means that flexible housing solutions will continue to be in demand.

For homeowners, secondary suites offer a way to create additional income and build long-term financial stability.

For renters, they provide more diverse housing options across the city.

And for Calgary as a whole, they represent a practical solution for expanding housing supply without dramatically reshaping neighbourhoods.

As the market continues to evolve, Citysearch expects to see even more homes designed with legal basement suites, carriage houses, and backyard dwellings integrated into the original plans.

What was once considered an unconventional arrangement is quickly becoming a normal—and increasingly strategic—part of Calgary’s housing future.