4921 21A Street SW

Altadore · Marda Loop · Calgary · Duplex / Semi · MLS® A2343646

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About this property

Now under construction, don't miss the chance for custom selections! 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 co mmunities, 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.

Above grade

2,646 sq ftas filed on the MLS® record

The $/sq ft on this page uses the above-grade figure only, because that is what the sold record it is compared against uses. Developed area includes the basement and is not comparable to it.

The full record

MLS® number

A2343646

Property type

Duplex / Semi

Building type

Duplex

Ownership

Freehold

Bedrooms

6 (4 up, 2 down)

Bathrooms

5 (4 full, 1 half)

Floor area

2,646 sq ft

$ per sq ft

$567

Year built

2026

Storeys

3

Lot area

3,000 sq ft

Frontage

25.0 ft

Depth

120.0 ft

$ per sq ft of lot

$500

Zoning

RCG

Basement

Full (Finished)

Basement features

Separate entrance

Foundation

Poured Concrete

Exterior finish

Brick, Stucco

Heating

Forced air · Natural gas

Cooling

See Remarks

Fireplaces

1

Flooring

Hardwood, Tile, Vinyl Plank

Parking

Detached Garage · 2 spaces

Appliances

Refrigerator, Range, Oven, Hood Fan, Garage door opener, Washer & Dryer

Features

Back lane, Closet Organizers, No Animal Home, No Smoking Home, Gas BBQ Hookup

Land features

Landscaped, Lawn

Fencing

Fence

Outbuildings

Deck

Nearby

Park, Playground, Recreation Nearby, Schools, Shopping

Community

Fishing

Legal plan

1952AD

Listed on

2026-09-14

Days on market

32

Room by room

Second level
Primary Bedroom	13.5 × 12.8 ft
Bedroom	11.5 × 10.0 ft
Bedroom	11.5 × 10.0 ft
Laundry room	10.0 × 5.5 ft
4pc Bathroom
5pc Bathroom
Third level
Primary Bedroom	13.3 × 12.5 ft
Other	11.4 × 6.3 ft
Bonus Room	20.1 × 12.2 ft
3pc Bathroom
Basement
Bedroom	10.1 × 10.0 ft
Bedroom	12.8 × 10.1 ft
Kitchen	11.1 × 8.0 ft
Living room	12.8 × 10.4 ft
Laundry room	6.1 × 4.0 ft
4pc Bathroom
Main level
Living room	15.0 × 14.3 ft
Kitchen	18.2 × 16.1 ft
Dining room	11.0 × 10.5 ft
Office	6.9 × 6.7 ft
Other	6.5 × 4.9 ft
2pc Bathroom

Listing courtesy of RE/MAX House of Real Estate · Karen Mangat. Data from the CREA Data Distribution Facility (DDF®), refreshed 2026-10-16 09:37, deemed reliable but not guaranteed. View on REALTOR.ca