# 4921 21A Street SW, Calgary, AB

![Photo 1 of 6 bedroom house at 4921 21A Street SW, Altadore, Calgary](https://calgaryremax.com/photos/4921-21a-street-sw-calgary-altadore-house-for-sale-mls-a2343646-1.jpg)

![Photo 2 of 6 bedroom house at 4921 21A Street SW, Altadore, Calgary](https://calgaryremax.com/photos/4921-21a-street-sw-calgary-altadore-house-for-sale-mls-a2343646-2.jpg) ![Photo 3 of 6 bedroom house at 4921 21A Street SW, Altadore, Calgary](https://calgaryremax.com/photos/4921-21a-street-sw-calgary-altadore-house-for-sale-mls-a2343646-3.jpg) ![Photo 4 of 6 bedroom house at 4921 21A Street SW, Altadore, Calgary](https://calgaryremax.com/photos/4921-21a-street-sw-calgary-altadore-house-for-sale-mls-a2343646-4.jpg) See all 26 photos of 4921 21A Street SW ![Photo 5 of 6 bedroom house at 4921 21A Street SW, Altadore, Calgary](https://calgaryremax.com/photos/4921-21a-street-sw-calgary-altadore-house-for-sale-mls-a2343646-5.jpg) ![Photo 6 of 6 bedroom house at 4921 21A Street SW, Altadore, Calgary](https://calgaryremax.com/photos/4921-21a-street-sw-calgary-altadore-house-for-sale-mls-a2343646-6.jpg) ![Photo 7 of 6 bedroom house at 4921 21A Street SW, Altadore, Calgary](https://calgaryremax.com/photos/4921-21a-street-sw-calgary-altadore-house-for-sale-mls-a2343646-7.jpg) ![Photo 8 of 6 bedroom house at 4921 21A Street SW, Altadore, Calgary](https://calgaryremax.com/photos/4921-21a-street-sw-calgary-altadore-house-for-sale-mls-a2343646-8.jpg) ![Photo 9 of 6 bedroom house at 4921 21A Street SW, Altadore, Calgary](https://calgaryremax.com/photos/4921-21a-street-sw-calgary-altadore-house-for-sale-mls-a2343646-9.jpg) ![Photo 10 of 6 bedroom house at 4921 21A Street SW, Altadore, Calgary](https://calgaryremax.com/photos/4921-21a-street-sw-calgary-altadore-house-for-sale-mls-a2343646-10.jpg) ![Photo 11 of 6 bedroom house at 4921 21A Street SW, Altadore, Calgary](https://calgaryremax.com/photos/4921-21a-street-sw-calgary-altadore-house-for-sale-mls-a2343646-11.jpg) ![Photo 12 of 6 bedroom house at 4921 21A Street SW, Altadore, Calgary](https://calgaryremax.com/photos/4921-21a-street-sw-calgary-altadore-house-for-sale-mls-a2343646-12.jpg) ![Photo 13 of 6 bedroom house at 4921 21A Street SW, Altadore, Calgary](https://calgaryremax.com/photos/4921-21a-street-sw-calgary-altadore-house-for-sale-mls-a2343646-13.jpg) ![Photo 14 of 6 bedroom house at 4921 21A Street SW, Altadore, Calgary](https://calgaryremax.com/photos/4921-21a-street-sw-calgary-altadore-house-for-sale-mls-a2343646-14.jpg) ![Photo 15 of 6 bedroom house at 4921 21A Street SW, Altadore, Calgary](https://calgaryremax.com/photos/4921-21a-street-sw-calgary-altadore-house-for-sale-mls-a2343646-15.jpg) ![Photo 16 of 6 bedroom house at 4921 21A Street SW, Altadore, Calgary](https://calgaryremax.com/photos/4921-21a-street-sw-calgary-altadore-house-for-sale-mls-a2343646-16.jpg) ![Photo 17 of 6 bedroom house at 4921 21A Street SW, Altadore, Calgary](https://calgaryremax.com/photos/4921-21a-street-sw-calgary-altadore-house-for-sale-mls-a2343646-17.jpg) ![Photo 18 of 6 bedroom house at 4921 21A Street SW, Altadore, Calgary](https://calgaryremax.com/photos/4921-21a-street-sw-calgary-altadore-house-for-sale-mls-a2343646-18.jpg) ![Photo 19 of 6 bedroom house at 4921 21A Street SW, Altadore, Calgary](https://calgaryremax.com/photos/4921-21a-street-sw-calgary-altadore-house-for-sale-mls-a2343646-19.jpg) ![Photo 20 of 6 bedroom house at 4921 21A Street SW, Altadore, Calgary](https://calgaryremax.com/photos/4921-21a-street-sw-calgary-altadore-house-for-sale-mls-a2343646-20.jpg) ![Photo 21 of 6 bedroom house at 4921 21A Street SW, Altadore, Calgary](https://calgaryremax.com/photos/4921-21a-street-sw-calgary-altadore-house-for-sale-mls-a2343646-21.jpg) ![Photo 22 of 6 bedroom house at 4921 21A Street SW, Altadore, Calgary](https://calgaryremax.com/photos/4921-21a-street-sw-calgary-altadore-house-for-sale-mls-a2343646-22.jpg) ![Photo 23 of 6 bedroom house at 4921 21A Street SW, Altadore, Calgary](https://calgaryremax.com/photos/4921-21a-street-sw-calgary-altadore-house-for-sale-mls-a2343646-23.jpg) ![Photo 24 of 6 bedroom house at 4921 21A Street SW, Altadore, Calgary](https://calgaryremax.com/photos/4921-21a-street-sw-calgary-altadore-house-for-sale-mls-a2343646-24.jpg) ![Photo 25 of 6 bedroom house at 4921 21A Street SW, Altadore, Calgary](https://calgaryremax.com/photos/4921-21a-street-sw-calgary-altadore-house-for-sale-mls-a2343646-25.jpg) ![Photo 26 of 6 bedroom house at 4921 21A Street SW, Altadore, Calgary](https://calgaryremax.com/photos/4921-21a-street-sw-calgary-altadore-house-for-sale-mls-a2343646-26.jpg)

$1,550,000

MLS® A2343646 · Altadore

- **6**Beds
- **5**Baths
- **2,647**Sq ft
- **2026**Built

## About 4921 21A Street SW

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. (id:67882)

## How 4921 21A Street SW compares to Altadore

- $586 per sq ft, 3% below the Altadore median of $606.
- Listed 58 days, against a Altadore average of 57 days.

## House details

**Property type**

Single Family

**Parking**

Detached Garage

**Basement**

Finished, Full, Separate entrance

**Days on market**

58

Listing courtesy of RE/MAX House of Real Estate.

Listing information last updated October 17, 2026.

[![Powered by REALTOR.ca](https://calgaryremax.com/powered-by-realtor-ca.svg)](https://www.realtor.ca/)

![Derek Little, REALTOR®](https://calgaryremax.com/derek-little-calgary-realtor-remax.jpg)

**Derek Little** REALTOR® · REMAX House of Real Estate

## Book a showing with Derek

Your request goes to Derek Little, REALTOR® with REMAX House of Real Estate, who can show you this home. Listing courtesy of RE/MAX House of Real Estate.

[Call 403-690-4960](tel:+14036904960)[Text 403-690-4960](sms:+14036904960)

## Map of 4921 21A Street SW, Altadore

## Quick answers about Altadore real estate

**What's the average home price in Altadore, Calgary?**

As of November 12, 2026, the median asking price for the 47 homes for sale in Altadore is $1,250,000. Asking prices range from $249,000 to $3,000,000.

**How long have homes in Altadore been on the market?**

As of November 12, 2026, homes for sale in Altadore have been listed for an average of 57 days.

**What's the cheapest home for sale in Altadore right now?**

The lowest-priced home for sale in Altadore is 102, 1811 34 Avenue SW at $249,000, a 1 bedroom condo.

**What's the price per square foot in Altadore?**

The median asking price per square foot in Altadore is $606, across 46 homes with a listed floor area.

**Who is a REALTOR® that works in Altadore?**

Derek Little is a REALTOR® with REMAX House of Real Estate serving Altadore and the rest of Calgary. Phone: 403-690-4960.

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REMAX House of Real Estate · Listing data from CREA's DDF®. REALTOR®, REALTORS®, and the REALTOR® logo are certification marks that are owned by REALTOR® Canada Inc. and licensed exclusively to The Canadian Real Estate Association (CREA). These certification marks identify real estate professionals who are members of CREA and who must abide by CREA’s By-Laws, Rules, and the REALTOR® Code. The MLS® trademark and the MLS® logo are owned by CREA and identify the quality of services provided by real estate professionals who are members of CREA.