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    4921 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2343646

    4921 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2343646

    Calgary inner city homes are some of the most sought after properties in the city, and for good reason! Residents of inner city neighbourhoods have quick-and-easy access to amenities, entertainment, the river parks and pathways, public transportation, and the downtown business core. Since the turn of the century, inner city real estate in Calgary has experienced a renewal of life through new infill home developments that appeal to buyers looking to enjoy the benefits of an inner city lifestyle.

    To learn more about inner city properties for sale or to view any listing(s) below, contact our team of experienced Realtors® with RE/MAX House of Real Estate anytime at 403-370-4008 and we will be happy to serve you!

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    4921 21A Street SW
    Altadore Calgary T2T 5C2

    $1,499,999
    Residential beds: 6 baths: 5.0 2,647 sq. ft. built: 2026

    Main Photo: 4921 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2343646
    Photo 1: 4921 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2343646
    Photo 2: 4921 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2343646
    Photo 3: 4921 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2343646
    Photo 4: 4921 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2343646
    Photo 5: 4921 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2343646
    Photo 6: 4921 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2343646
    Photo 7: 4921 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2343646
    Photo 8: 4921 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2343646
    Photo 9: 4921 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2343646
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    Photo 12: 4921 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2343646
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    Photo 15: 4921 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2343646
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    Photo 21: 4921 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2343646
    Photo 22: 4921 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2343646
    Photo 23: 4921 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2343646
    Photo 24: 4921 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2343646
    Photo 25: 4921 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2343646
    Photo 26: 4921 21A Street SW in Calgary: Altadore Semi Detached (Half Duplex) for sale : MLS®# A2343646
    Status:
    Active
    Prop. Type:
    Residential
    MLS® Num:
    A2343646
    Bedrooms:
    6
    Bathrooms:
    5
    Year Built:
    2026
    This exceptional 3 STOREY LUXURY DUPLEX offers a rare opportunity to own a thoughtfully designed inner city home with impressive square footage, elevated functionality, and incredible flexibility in the heart of ALTADORE. Offering OVER 2,600 SQ FT ABOVE GRADE, a THIRD FLOOR RETREAT with DUAL BALCONIES, TWO PRIMARY BEDROOMS, multiple outdoor spaces, and FINISHED BASEMENT (with option to upgrade basement layout), this home is designed for modern family living, entertaining, and multi-generational flexibility. The main floor features a bright OPEN CONCEPT layout connecting the kitchen, dining, and living areas, creating an effortless flow for everyday living and entertaining. The kitchen sits at the heart of the home, while the spacious rear living area opens through large patio doors to the deck and backyard. A convenient POCKET OFFICE is thoughtfully planned to complete the main level. Upstairs, the second floor offers a spacious PRIMARY RETREAT with a PRIVATE ENSUITE and WALK-IN CLOSET. An additional 2 bedrooms, full bathroom, dedicated LAUNDRY complete this level. The THIRD FLOOR is a true standout, offering approximately 683 SQ FT of additional above-grade living space and incredible lifestyle flexibility. Designed for function a SECOND PRIMARY BEDROOM can become a retreat, entertainment lounge, executive workspace, or private getaway. BONUS/REC AREA provides a flexible space for family, guests, a second home office, or additional lounge. Large BI-PARTING DOORS open onto a FRONT AND REAR private DURADECK BALCONY, creating a seamless connection between indoor and outdoor living. The lower level features approximately 935 SQ FT, a SIDE ENTRANCE with two different floor plans you may choose from, providing versatility for usage. A DOUBLE DETACHED GARAGE, private yard, rear deck, and multiple outdoor spaces complete this property. Located in ALTADORE, one of Calgary's most desirable inner city communities, enjoy an established neighbourhood setting with convenient access to parks, pathways, schools, local shops, restaurants, Marda Loop, downtown, and major routes throughout the city. With OVER 3,500 SQ FT OF DEVELOPED LIVING SPACE including the basement , three above-grade levels, a THIRD FLOOR RETREAT, FLEXIBLE BASEMENT LAYOUT, and DOUBLE DETACHED GARAGE, this is a rare opportunity to own a distinctive luxury home in one of Calgary's premier communities. Call today to discuss presale options, including custom basement changes. Please note potential to suite is subject to approval and permitting by the city/municipality.
    Property Type:
    Residential
    Property Sub Type:
    Semi Detached (Half Duplex)
    Condo Type:
    Not a Condo
    Transaction Type:
    For Sale
    Possession:
    Possession Date:
    Suite:
    No
    Num Legal Suites:
    0
    Num Illegal Suites:
    0
    Home Style:
    3 (or more) Storey, Attached-Side by Side
    Total Living Area:
    2,646.58 sq. ft.
    Main Level Finished Area:
    934.5 sq. ft.
    Upper Level Finished Area:
    1,712.08 sq. ft.
    Lower Level Finished Area:
    Above Grade Finished Area:
    Below Grade Finished Area:
    777 sq. ft.
    Taxes:
    Tax Assessed Value:
    HOA Fee Includes:
    Lot Area:
    3,000 sq. ft.
    Lot Frontage:
    25'
    Acres Cleared:
    Acres Cultivated:
    Acres Irrigated:
    Acres Leasehold:
    Acres Not Cultivated:
    Acres Freehold:
    Acres Seeded:
    Acres Tame Hay:
    Acres Treed:
    Acres Waste:
    Acres Water Rights:
    Front Exposure:
    West
    Reg. Size:
    Reg. Size Includes:
    Entry Level:
    1
    Levels:
    Three Or More
    End Unit:
    1 Common Wall
    Total Rooms Above Grade:
    9
    Year built:
    2026 (Age: 0)
    Bedrooms:
    6 (Above Grd: 4)
    Bedrooms Above Grade:
    4
    Bedrooms On Main:
    0
    Bedrooms Below Grade:
    2
    Bathrooms:
    5.0 (Full:4, Half:1)
    Num Ensuite Baths:
    2
    Plan:
    1952AD
    Heating:
    Forced Air, Natural Gas
    Basement:
    Full, Finished, Separate/Exterior Entry
    Foundation:
    Poured Concrete
    New Constr.:
    Yes
    Construction Material:
    Brick, Stucco
    Structure Type:
    Duplex
    Roof:
    Flat Torch Membrane, Asphalt Shingle
    Ensuite:
    Yes
    Flooring:
    Hardwood, Tile, Vinyl Plank
    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:
    In Basement
    Southwest
    Altadore
    Garage Control(s), Oven-Built-In, Range, Range Hood, Refrigerator, Washer/Dryer
    Appliances
    None Known
    Floor
    Type
    Size
    Other
    Main Floor
    Living Room
    15' × 14'4"
    Main Floor
    Kitchen
    18'2" × 16'1"
    Main Floor
    Dining Room
    11' × 10'6"
    Main Floor
    Office
    6'11" × 6'8"
    Main Floor
    Mud Room
    6'6" × 4'11"
    2nd Floor
    Bedroom - Primary
    13'6" × 12'10"
    2nd Floor
    Bedroom
    11'6" × 10'
    2nd Floor
    Bedroom
    11'6" × 10'
    2nd Floor
    Laundry
    10' × 5'6"
    3rd Floor
    Bedroom - Primary
    13'4" × 12'6"
    3rd Floor
    Walk-In Closet
    11'5" × 6'4"
    3rd Floor
    Bonus Room
    20'1" × 12'3"
    Basement
    Bedroom
    10'1" × 10'
    Basement
    Bedroom
    12'10" × 10'1"
    Basement
    Kitchen
    11'1" × 8'
    Basement
    Living Room
    12'10" × 10'5"
    Basement
    Laundry
    6'1" × 4'
    Floor
    Ensuite
    Pieces
    Other
    Main Floor
    No
    2
    0' x 0'
    2nd Floor
    No
    4
    0' x 0'
    2nd Floor
    Yes
    5
    0' x 0'
    3rd Floor
    Yes
    3
    0' x 0'
    Basement
    No
    4
    0' x 0'
    Title to Land:
    Fee Simple
    Community Features:
    Fishing, Park, Playground, Schools Nearby, Shopping Nearby, Sidewalks, Street Lights, Tennis Court(s), Walking/Bike Paths
    Interior Features:
    Built-in Features, Closet Organizers, High Ceilings, Kitchen Island, Natural Woodwork, No Animal Home, No Smoking Home, Open Floorplan, Pantry, Quartz Counters, Recessed Lighting, Separate Entrance, Storage, Sump Pump(s), Walk-In Closet(s), Wired for Data, Wired for Sound
    Exterior Features:
    Balcony, BBQ gas line, Lighting, Private Yard
    Patio And Porch Features:
    Deck, Front Porch
    Lot Features:
    Back Lane, Back Yard, Front Yard, Interior Lot, Landscaped, Lawn, Low Maintenance Landscape, Private, Subdivided
    Num. of Parcels:
    0
    Fencing:
    Fenced
    Region:
    Calgary
    Zone:
    CAL Zone CC
    Zoning:
    RCG
    Listed Date:
    Sep 14, 2026
    Days on Mkt:
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    Listed by RE/MAX House of Real Estate
    Data was last updated September 15, 2026 at 12:05 PM (UTC)
    Area Statistics
    Listings on market:
    47
    Avg list price:
    $1,329,000
    Min list price:
    $189,900
    Max list price:
    $3,295,000
    Avg days on market:
    35
    Min days on market:
    1
    Max days on market:
    253
    Avg price per sq.ft.:
    $590.6
    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.
    CODY BATTERSHILL
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    Get in touch with an inner city realtor in Calgary - Cody Battershill

    Why Choose Inner City Homes in Calgary?

    #1 - Convenient Location

    Location plays a huge role in the high demand and desirability of inner city real estate in Calgary. Close proximity to amenities, services, parks, playgrounds, schools, recreation, and of course, the downtown business core, are just a few benefits of the inner city lifestyle.

    Properties in Calgary's inner city are found in prestigious enclaves on quiet streets with mature vegetation. Paved pathways along the nearby river serve to interconnect residents with amenities and other parts of the city centre with ease.

    Check out Calgaryism's list of the best inner city parks our city has to offer. Chances are a few of them will be near your future property!

    #2 - Modern Living

    Calgary inner city homes often are customized with high-end features that cater to the needs of buyers and their families. New infills are especially desirable, with luxurious characteristics that sometime exceed all expectations. These properties showcase the work of some of the best custom builders in the city, offering sophisticated living in a high-density urban setting.

    What is an infill home anyway, you might ask? Basically there are two different types you can buy in today's residential market:

    #3 - Family-Oriented Communities

    Calgary's inner city neighbourhoods are family-oriented because of their higher density settings. These "tight-knit" communities afford families and friends the opportunity to grow with one another and create lasting memories at nearby parks and amenities.

    Neighbours are usually friendly and will look out for each other's common security and well-being. Schools are also found in abundance near any inner city home in Calgary; most areas have their very own in-community public elementary school with junior and senior highs often within walking distance for mature students. Dropping the kids off at school when they are younger sometimes means just walking down the street a few blocks.

    Parents often save so much time from the conveniences of inner city living that they have another hour or two to spend on more important things in life. Work, study, cooking, or perhaps taking care of your family; less time spent in traffic means more time enjoying the inner city real estate you've worked so hard for to buy and maintain!

    Which Calgary inner city home for sale and respective community is right for you? Find out what aspects you should consider in one of our infill buyer guides:

    Calgary Inner City Real Estate Agents

    ask a Calgary inner city real estate agent

    Browsing inner city homes for sale in Calgary? Thinking about selling your current property? Our team of experienced Realtors® have the knowledge and expertise to help guide you towards accomplishing your real estate goals!

    Contact Cody & Jordan with RE/MAX House of Real Estate anytime at 403-370-4008 if you have questions or would like us to set up a showing for you! Get a Free Property Evaluation for your inner city home in Calgary today!

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