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4921 21A Street SW, Calgary

Altadore
ActiveMLS® A2343646· 33 days on market
$1,550,000
$586 per sq ft (asking)
Was $1,499,999 · increased $50,001 (3.3%) on Oct 17, 2026
4
Bedrooms
5.5
Bathrooms
2,646
Sq ft
2026
Year built
2
Garage
3,000
Lot sq ft
CalgaryListings Insight
Set in Altadore, 4921 21A Street SW is a 4-bedroom home built in 2026, offering 5.5 bathrooms and 2,646 sq ft of living space above grade. Notable features include a fully finished basement with a separate entrance, a double garage, hardwood flooring, a fireplace, and air conditioning. For new construction, review builder terms, deposit structure, possession timelines, warranty coverage, GST treatment, and what is actually included. If rental income is part of the plan, verify suite legality, permits, insurance, lender treatment, and current lease details before removing conditions. 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 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.
Original Price
$1,499,999

Listing Information

MLS® NumberA2343646
StatusActive
List Price$1, 550, 000
Days on Market33 days
OccupancyNew; Never Occupied

Property Details

Property TypeSemi Detached (Half Duplex)
Architectural Style3 (or more) Storey, Attached-Side by Side
ZoningRCG
Above-Grade Sq Ft2, 646 sq ft
Year Built2026
Bedrooms4
Full Bathrooms5
Half Bathrooms1
Total Bathrooms5.5

Interior

BasementFull, Finished, Separate/Exterior Entry
FlooringHardwood, Tile, Vinyl Plank
Fireplaces1
HeatingForced Air, Natural Gas
Air ConditioningRough-In

Exterior & Parking

ExteriorBrick, Stucco
RoofFlat Torch Membrane, Asphalt Shingle
FoundationPoured Concrete
Garage Spaces2
Total Parking2
Patio / DeckDeck, Front Porch

Site & Lot

Lot Size3, 000 sq ft
Lot Acres0.07 acres
Lot Width25.00
Lot FeaturesBack Lane, Back Yard, Front Yard, Interior Lot, Landscaped, Lawn, Low Maintenance Landscape, Private, Subdivided
Legal Description1952AD

Inclusions

Garage Control(s),Oven-Built-In,Range,Range Hood,Refrigerator,Washer/Dryer

Room Dimensions

Main Level
Living Room15`0" × 14`4"
Kitchen18`2" × 16`1"
Dining Room11`0" × 10`6"
Office6`11" × 6`8"
Mud Room6`6" × 4`11"
2pc Bathroom0`0" × 0`0"
Second Level
Bedroom - Primary13`6" × 12`10"
Bedroom11`6" × 10`0"
Bedroom11`6" × 10`0"
Laundry10`0" × 5`6"
4pc Bathroom0`0" × 0`0"
5pc Ensuite bath0`0" × 0`0"
Basement Level
Bedroom10`1" × 10`0"
Bedroom12`10" × 10`1"
Kitchen11`1" × 8`0"
Living Room12`10" × 10`5"
Laundry6`1" × 4`0"
4pc Bathroom0`0" × 0`0"

Listing Office

RE/MAX House of Real Estate
Listing data provided via MLS®. Not intended to solicit buyers or sellers already under contract.

Property History

No previous MLS® listings on record for this property — this appears to be its first time offered. Want to know how often homes nearby change hands? Ask our team.

What did similar homes here actually sell for?

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What stands out about this listing

  • Price changeAsking $1,550,000, up from $1,499,999 (3.3% higher). We have tracked it since 2026-09-16.
  • Time on marketOn the market 33 days. Semi-detached homes that sold in Altadore over October 2025 – September 2026 averaged 26 days.
  • Price per sq ft$586 per sq ft above grade at asking, about 6% above the $552 per sq ft median across 7 comparable active semi-detached homes in Altadore.

Worked out from this MLS® record, our published community data and the other active listings in Altadore. Asking prices only; individual sold prices stay members-only under Alberta VOW rules.

Where this price sits in Altadore

Asking $1,550,000. That is about 30% above the $1,190,000 median sale price for semi-detached homes in Altadore over October 2025 – September 2026, across 57 recorded sales. Those sales took 26 days on the market on average. Across all home types, sellers in Altadore got 99.6% of their asking price on average and the community was carrying 3.5 months of supply.

Aggregate MLS® statistics from our own published dataset (community medians, methodology). Medians are not adjusted for size, age or condition, and individual sold prices stay members-only under Alberta VOW rules.

Schools near this home

  • Altadore SchoolPublic (CBE) · Elementary · 379 m · about 2 mins by carSchool website
  • Central Memorial High SchoolPublic (CBE) · Senior High · 1.5 km · about 4 mins by carSchool website
  • Clear Water AcademyPrivate / Independent · Elementary/Junior High/Senior High · 2.1 km · about 8 mins by carSchool website
  • Mount Royal UniversityPost-Secondary · 2.7 km · about 6 mins by carSchool website
  • Lycée Louis PasteurPrivate / French Immersion · about 5 mins by carSchool website
  • Master's Academy & CollegePrivate / Independent · about 6 mins by carSchool website

Distances and drive times are measured from the centre of Altadore, not from this address. Designation depends on address, grade, program and capacity and changes from year to year — check the CBE or Calgary Catholic finder before you buy.

Commute from Altadore

DestinationBy carBy transit
Downtown Calgary14 mins35 mins
University of Calgary12 mins42 mins
Foothills Medical Centre11 mins59 mins
Mount Royal University6 mins17 mins
Calgary International Airport25 mins1 hour 16 mins
Westside Recreation Centre13 mins1 hour 0 mins

Off-peak estimates measured from the centre of Altadore, not from this address. Live traffic varies.

Who lives in Altadore

  • 7,290Population
  • 2.4Average household size
  • 68%Owner-occupied households
  • $153KMedian household income
  • 20%Residents aged 0–14

2021 Census of Canada, via the City of Calgary community profile — long-term neighbourhood context, not current market activity. Full Altadore census profile →

Questions about this home

Is 4921 21A Street SW for sale?

Yes. 4921 21A Street SW in Altadore is an active MLS® listing (MLS® A2343646). It has been on the market 33 days. Listing data last updated 2026-10-17.

What is the asking price of 4921 21A Street SW?

4921 21A Street SW in Altadore is listed at $1,550,000.

How many bedrooms and bathrooms does 4921 21A Street SW have?

4921 21A Street SW in Altadore has 4 bedrooms and 5.5 bathrooms. The listing records 2,646 sq ft above grade. It is a semi-detached home (half duplex).

How does the asking price of 4921 21A Street SW compare with the Altadore market?

Its $1,550,000 asking price is about 30% above the $1,190,000 median sale price for semi-detached homes in Altadore (October 2025 – September 2026, 57 sales). Medians are not adjusted for size, age or condition.

Live MLS® Data · Calgary Listings Group · Serving Calgary Since 1997

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