Calgary Duplexes, Triplexes & Fourplexes for Sale | Multi-Family & Investment Properties

Explore Duplex, Triplex, and Fourplex Listings in Calgary – Affordable, Luxury, and Investment Opportunities

Calgary Duplexes for Sale

Looking to buy a duplex in Calgary? Discover a wide selection of Calgary duplexes for sale, including modern new build duplex homes, character-filled side-by-side properties, and full duplex investment opportunities. Whether you're a first-time homebuyer, investor, or searching for a semi-detached house in Calgary, duplex living offers a flexible and affordable solution.

Browse listings for duplexes, triplexes, and fourplexes for sale in Calgary, ideal for multi-family living or generating rental income. You'll find options ranging from affordable duplexes in NE Calgary to luxury infill duplexes in Calgary’s inner-city communities like Killarney, Altadore, and Mount Pleasant. For those seeking larger properties, explore triplex and fourplex listings offering multiple units under one roof—perfect for investors or extended families.

Discover newly built duplexes with contemporary designs, energy-efficient features, and attached garages, as well as side-by-side duplexes and full duplex buildings for sale. Whether you're looking for a duplex with no condo fees, a multi-family home for sale in Calgary, or a duplex triplex fourplex investment property, Diane Richardson is here to guide you through the process.

Start your search today and find the perfect duplex, triplex, or fourplex for sale in Calgary that suits your lifestyle, investment goals, and budget.

Contact Diane Richardson

Phone: 403.397.3706

Email: diane@mypadcalgary.com

Neighbourhoods to Find Duplexes & Multi-Family Homes in Calgary

Calgary offers a wide variety of duplexes, semi-detached homes, triplexes, and fourplex properties across many sought-after communities. In inner-city neighbourhoods like Altadore, Killarney, Inglewood, and Renfrew, you'll find modern infill duplexes, character half-duplexes, and multiplex investment properties, all with excellent walkability and urban convenience.

For buyers looking in suburban areas, communities like Evanston, Legacy, Mahogany, and Walden feature new build duplexes and attached homes with contemporary layouts, ideal for growing families and downsizers alike.

Whether you're searching for a full duplex for sale in Northeast Calgary, a luxury side-by-side duplex in Southwest Calgary, or an investment multiplex property in Calgary's NW quadrant, there are abundant options to suit every lifestyle and budget. Start your search for duplexes and multi-family homes in Calgary today with Diane Richardson’s expert guidance.

Diane Richardson – Calgary Real Estate Specialist

Looking to Buy or Sell a Duplex in Calgary?

Searching for a duplex for sale in Calgary, or planning to list your attached or semi-detached property? Diane Richardson is a trusted Calgary REALTOR® with over 15 years of experience specializing in duplex homes, half-duplex properties, and multiplex investments across Calgary's top communities.

Whether you're a first-time buyer, investor, or upgrading to a newly built duplex with modern designs, Diane’s personalized approach ensures a smooth real estate experience. From inner-city infill duplexes to affordable side-by-side duplexes in family-friendly neighborhoods, Diane will guide you through every step of the buying or selling process.

For a quicker response, please include the MLS® number or property address in your inquiry.

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NEXT Open House + more
Oct 25, 2025 12:00 PM - 02:00 PM MDT

5005 21A Street SW
Altadore Calgary T2T 5C4

$999,000
Residential beds: 5 baths: 4.0 1,947 sq. ft. built: 2024

Main Photo: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 1: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 2: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 3: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 4: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 5: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 6: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 7: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 8: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 9: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 10: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 11: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 12: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 13: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 14: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 15: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 16: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 17: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 18: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 19: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 20: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 21: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 22: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 23: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 24: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 25: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 26: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 27: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 28: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 29: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 30: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 31: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 32: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 33: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 34: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 35: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 36: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 37: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 38: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 39: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 40: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 41: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 42: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 43: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 44: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 45: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 46: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Photo 47: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
Open House - Oct 25, 2025
12:00 PM - 02:00 PM MDT
NOTES: Open House on Saturday, October 25, 2025 12:00PM - 2:00PM
Open House - Oct 26, 2025
12:00 PM - 03:00 PM MDT
NOTES: Open House on Sunday, October 26, 2025 12:00PM - 3:00PM
Show all 3 events
Status:
Active
Prop. Type:
Residential
MLS® Num:
A2264357
Bedrooms:
5
Bathrooms:
4
Year Built:
2024
** OPEN HOUSE: Saturday, Oct, 25th 12-2pm, Sunday, Oct. 26th 12-3pm & Monday, Oct. 27th 3:30-5:30pm ** Welcome to 5005 21A Street—a beautifully designed modern family home featuring 5 bedrooms and 3.5 bathrooms. From the moment you step inside, you're welcomed by a bright and airy dining area that seamlessly flows into the open-concept main floor. The gourmet kitchen is a chef’s dream, complete with high-end appliances, quartz countertops, full-height cabinetry, a spacious island, and a coffee bar for added convenience. The living room boasts soaring ceilings, a cozy gas fireplace, and built-in shelving with a desk, perfect for work or study. Double patio doors open onto the back deck, extending your living space outdoors. A mudroom and a chic powder room complete the main level. Upstairs, the primary suite is a true retreat, featuring a private coffee bar, his and hers walk-in closets, and a luxurious 5-piece ensuite with a soaking tub, double vanity, and walk-in shower. Two additional bedrooms, a full bathroom, and a dedicated laundry room round out the upper floor. Outside, the home’s timeless brick façade exudes curb appeal, while the fully fenced and landscaped backyard offers a private oasis. A double-car garage adds to the home’s practicality. Located just minutes from Marda Loop’s vibrant shops, restaurants, and amenities, this home effortlessly combines style, comfort, and functionality. Don’t miss out—schedule your showing today! Please note that the photos shown are from the other side of the duplex. While there may be slight variations, the layout, finishes, and design are nearly identical, offering the same modern style and high-end features.
Property Type:
Residential
Property Sub Type:
Semi Detached (Half Duplex)
Condo Type:
Not a Condo
Transaction Type:
For Sale
Suite:
Suite - Legal
Home Style:
2 Storey, Attached-Side by Side
Total Living Area:
1,947.3 sq. ft.
Lot Area:
3,003 sq. ft.
Lot Frontage:
7'7½"
Front Exposure:
West
Entry Level:
1
Levels:
Two
End Unit:
1 Common Wall
Total Rooms Above Grade:
10
Year built:
2024 (Age: 1)
Bedrooms:
5 (Above Grd: 3)
Bedrooms Above Grade:
3
Bedrooms Below Grade:
2
Bathrooms:
4.0 (Full:3, Half:1)
Plan:
1952AD
Heating:
Forced Air
Basement:
Finished, Full
Foundation:
Poured Concrete
New Constr.:
Yes
Construction Material:
Brick
Structure Type:
Duplex
Roof:
Asphalt Shingle
Ensuite:
Yes
Flooring:
Carpet, Hardwood, Tile
Cooling:
Rough-In
Fireplaces:
1
Fireplace Details:
Gas
Garage:
Yes
Garage Spaces:
2
Parking:
Double Garage Detached
Parking Places:
2
Parking Total/Covered:
2 / -
Laundry Features:
Upper Level
Altadore
Dishwasher, Electric Stove, Garage Control(s), Microwave, Range Hood, Refrigerator
Basement Suite Refrigerator, Basement Suite Stove, Basement Suite Microwave, Basement Suite Dishwasher
None Known
Floor
Type
Size
Other
Main Floor
Entrance
8'4" × 7'
Main Floor
Dining Room
13'7" × 11'7"
Main Floor
Other
6'10" × 2'11"
Main Floor
Kitchen With Eating Area
27' × 12'6"
Main Floor
Living Room
19'1" × 11'5"
Main Floor
Mud Room
9'8" × 5'
Main Floor
Other
14'7" × 10'1"
Main Floor
Other
6'9" × 2'11"
Upper Level
Walk-In Closet
8'7" × 5'8"
Upper Level
Bedroom - Primary
13'5" × 12'1"
Upper Level
Walk-In Closet
7'7" × 5'
Upper Level
Other
4' × 3'8"
Upper Level
Laundry
8'6" × 6'2"
Upper Level
Bedroom
13'5" × 9'4"
Upper Level
Bedroom
11'4" × 9'10"
Basement
Walk-In Closet
7'8" × 5'1"
Basement
Bedroom
12'11" × 10'8"
Basement
Laundry
3'3" × 3'
Basement
Kitchen With Eating Area
11'11" × 8'6"
Basement
Furnace/Utility Room
9'10" × 8'5"
Basement
Bedroom
13'2" × 9'11"
Basement
Walk-In Closet
13'1" × 4'1"
Basement
Family Room
11'11" × 8'6"
Floor
Ensuite
Pieces
Other
Main Floor
No
2
5'3" x 6'5"
Upper Level
Yes
6
6'11" x 19'3"
Upper Level
No
4
4'11" x 8'5"
Basement
No
4
10'2" x 4'11"
Title to Land:
Fee Simple
Community Features:
Other, Schools Nearby, Shopping Nearby, Sidewalks, Street Lights, Walking/Bike Paths
Interior Features:
Built-in Features, Closet Organizers, Double Vanity, Dry Bar, High Ceilings, Kitchen Island, No Animal Home, No Smoking Home, Open Floorplan, Pantry, Quartz Counters, Separate Entrance, Soaking Tub, Walk-In Closet(s)
Exterior Features:
Other
Patio And Porch Features:
Deck
Lot Features:
Back Lane, Back Yard, Rectangular Lot, Street Lighting
Num. of Parcels:
0
Fencing:
Fenced
Region:
Calgary
Zone:
CAL Zone CC
Zoning:
R-CG
Listed Date:
Oct 15, 2025
  • Photo 1: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Photo 1 of 47
  • Photo 2: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Enterance
  • Photo 3: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Bright Dining Area
  • Photo 4: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
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  • Photo 6: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Gourmet Kitchen
  • Photo 7: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Quartz Countertops
  • Photo 8: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Photo 8 of 47
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    Photo 9 of 47
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    Photo 10 of 47
  • Photo 11: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Full-sized Island
  • Photo 12: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Cozy living room with fireplace
  • Photo 13: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Photo 13 of 47
  • Photo 14: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Deck
  • Photo 15: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Photo 15 of 47
  • Photo 16: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Photo 16 of 47
  • Photo 17: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Built-ins
  • Photo 18: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Powder Room
  • Photo 19: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Mud Room
  • Photo 20: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Primary Bedroom with Dual closets
  • Photo 21: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Photo 21 of 47
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    Photo 22 of 47
  • Photo 23: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Coffee Bar
  • Photo 24: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Spa like ensuite Bathroom
  • Photo 25: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Soaking Tub
  • Photo 26: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Walk-in shower
  • Photo 27: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Dual Vanity
  • Photo 28: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Walk-in closets
  • Photo 29: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    2nd Bedroom
  • Photo 30: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Photo 30 of 47
  • Photo 31: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    3rd Bedroom
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    Photo 32 of 47
  • Photo 33: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Full Bathroom
  • Photo 34: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Laundry Room
  • Photo 35: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Photo 35 of 47
  • Photo 36: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Legal Basement Suite
  • Photo 37: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Living Area
  • Photo 38: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Photo 38 of 47
  • Photo 39: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Fully equipped Kitchen
  • Photo 40: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Photo 40 of 47
  • Photo 41: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Photo 41 of 47
  • Photo 42: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Bedroom #1 in Basement
  • Photo 43: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Photo 43 of 47
  • Photo 44: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Bedroom #2 in basement
  • Photo 45: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Full Bathrooom in Basement
  • Photo 46: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Fully Fenced backyard
  • Photo 47: 5005 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2264357
    Double Car Garage
Listed by eXp Realty
Data was last updated October 24, 2025 at 10:05 AM (UTC)
Area Statistics
Listings on market:
31
Avg list price:
$1,029,000
Min list price:
$215,000
Max list price:
$4,500,000
Avg days on market:
42
Min days on market:
1
Max days on market:
247
Avg price per sq.ft.:
$547.3
These statistics are generated based on the current listing's property type and located in Altadore. Average values are derived using median calculations. This data is not produced by the MLS® system.
DIANE RICHARDSON
Data is supplied by Pillar 9™ MLS® System. Pillar 9™ is the owner of the copyright in its MLS®System. Data is deemed reliable but is not guaranteed accurate by Pillar 9™.
The trademarks MLS®, Multiple Listing Service® and the associated logos are owned by The Canadian Real Estate Association (CREA) and identify the quality of services provided by real estate professionals who are members of CREA. Used under license.