Garden Suite, Garage Suite, or Basement Suite? Calgary’s Premium Guide to Building the Right One
- Brandon Richards
- Oct 20
- 4 min read
Garden Suite, Garage Suite, or Basement Suite, What Should I Build and Why?
As Calgary’s housing needs evolve, more homeowners are exploring the value of secondary suites, not just for income, but for flexibility, family, and long-term investment. Whether you’re considering a garden suite, garage suite, or basement suite, each option offers unique benefits.
But which one is right for you? In this guide, we break down the pros, pricing, and property fit for each suite type to help you make an informed, and future-focused decision.
What Are Secondary Suites in Calgary?
A secondary suite is a fully independent living unit on the same property as a single-family home. It includes its own entrance, kitchen, bathroom, and living space. In Calgary, these can be:
A Basement Suite (within your existing home)
A Garage Suite (above or beside a detached garage)
A Garden Suite (a separate building in your backyard)
All secondary suites must comply with City of Calgary building codes, zoning rules, and safety regulations, and must be properly permitted to be considered legal.
Garden Suites: Detached, Private, and Highly Customizable
What is a Garden Suite?
A garden suite is a freestanding unit, often in the rear yard, that offers complete independence from the main house. Also called backyard suites, they’re ideal for multigenerational living, premium rentals, or aging in place.
Why Choose a Garden Suite?
Full privacy for guests, renters, or family
High-end design flexibility (open layouts, vaulted ceilings, designer finishes)
Premium rental potential: $1,800–$2,500+ per month
Excellent option for homeowners looking to downsize on their own property
Starting Cost
Garden suites typically start at $200,000+ and vary depending on size, finishes, and site servicing.
Ideal For
Large inner-city or suburban lots with back alley access
Long-term planning: multigenerational use, rental, or retirement
Owners wanting premium, detached living on their property
Garage Suites: Elevated Living Overhead
What is a Garage Suite?
A garage suite is a fully contained living unit built above or beside a detached garage. It makes efficient use of your backyard footprint while offering true separation and independence. Also known as a Carriage House, Laneway Home, Coach House, Accessory Dwelling Unit (ADU), and Garage Apartment.
Why Choose a Garage Suite?
Smart use of vertical space
Great for long-term rentals or adult children
Excellent layout potential, including:
1-bedroom studio above a 2-car garage
2-bedroom, 2-bathroom suite over a 4-car garage
Fully private access, in-suite laundry, and upscale amenities
Starting Cost
Garage suites typically start at $250,000+ and include full structural rebuilds and independent servicing (sewer, water, power, HVAC).
Ideal For
Calgary properties with laneway access and overhead power
Central neighborhoods like Altadore, Renfrew, or Killarney
Owners seeking mid-sized premium living units with rental flexibility
Basement Suites: Efficient Use of Existing Space
What is a Basement Suite?
A basement suite is built within the lower level of your existing home. It’s a cost-effective way to create a separate rental or living area without expanding your footprint.
Why Choose a Basement Suite?
Most affordable suite type
Construction within the home’s existing structure
Fast build time compared to detached options
Excellent for student housing or mid-range rentals
Starting Cost
Basement suites typically start at $80,000+, depending on scope, code upgrades, and access changes.
Ideal For
Homeowners looking to generate immediate rental income
Lots with legal suite potential under Calgary bylaws
Properties where expanding outside isn’t feasible
Cost Comparison Table
Suite Type | Starting Cost (2025) | Privacy | Rental Potential (Monthly) |
Basement Suite | $80,000+ | Moderate | $1,000 – $1,500 |
Garage Suite | $250,000+ | High | $1,400 – $2,000 |
Garden Suite | $200,000+ | Highest | $1,800 – $2,500+ |
Which Suite Should You Build?
If privacy and premium finishes matter: Garden or garage suites are your best bet, ideal for high-end renters, multigenerational families, or future downsizing.
If you want flexibility on a compact lot: Garage suites offer a smart solution when yard space is tight but laneway access exists.
If you're looking for a fast ROI: Basement suites remain the go-to for cost-conscious homeowners looking to generate income quickly.
Key Considerations Before You Build
Zoning: Not all properties allow detached suites, check with Calgary’s zoning rules.
Servicing: All suites need water, sewer, and power tie-ins (especially garden and garage suites).
Access & Parking: Many Calgary neighborhoods require off-street parking for secondary units.
Construction Timeline: Basement suites (6–10 weeks), Garage/Garden suites (12–20 weeks or more).
Final Thoughts: Build With Your Future in Mind
Secondary suites offer more than income, they add lifestyle value, family flexibility, and long-term housing options.
For Calgary homeowners ready to invest in sophisticated, high-functioning living spaces, garage and garden suites offer unmatched design freedom, independence, and property enhancement. Basement suites still have their place, but for those thinking beyond just rent, the future lies in thoughtful, detached secondary homes.