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3510 21 Street SW
Altadore Calgary T2C 1X9

$850,000
Residential beds: 3 baths: 2.0 975 sq. ft. built: 1914

Main Photo: 3510 21 Street SW in Calgary: Altadore Detached for sale : MLS®# A2299732
Photo 1: 3510 21 Street SW in Calgary: Altadore Detached for sale : MLS®# A2299732
Photo 2: 3510 21 Street SW in Calgary: Altadore Detached for sale : MLS®# A2299732
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Status:
Active
Prop. Type:
Residential
MLS® Num:
A2299732
Bedrooms:
3
Bathrooms:
2
Year Built:
1914
URBAN LIVING FOR TODAY, INVESTMENT FOR TOMORROW | Welcome to this fully renovated detached gem in the heart of vibrant Marda Loop. Move-in ready with three bedrooms, two modern bathrooms and a large recreation room, this home is perfect for urbanites who value walkability and connection. You’ll be greeted by charming curb appeal, a welcoming porch and foyer typical of these character homes. The main floor works well with the open plan living/dining space flowing right into the newly renovated kitchen featuring quartz counters, modern cabinetry, stainless appliances and an extra-large pantry. Also on the main floor is a versatile bedroom/office and a fully renovated four-piece bath. Upstairs are two cozy bedrooms with new carpet, while the fully finished lower level offers a flexible primary suite option, a generous storage area, a second renovated bathroom and a storage/mechanical room with a high-efficiency furnace. The fully replaced windows improve comfort and efficiency throughout the year. Outside, the fully fenced yard, new wood deck with under-deck storage and covered off-street parking create an ideal outdoor oasis, a rare find in urban locations! With this charming and move-in ready character home and desirable MC-1 zoning, this property delivers a lovely home today and excellent long-term investment potential. Walk to shops, restaurants and transit — city living at its best. Book your viewing today before this rare opportunity is gone!
Property Type:
Residential
Property Sub Type:
Detached
Condo Type:
Not a Condo
Transaction Type:
For Sale
Possession:
Possession Date:
Suite:
No
Num Legal Suites:
0
Num Illegal Suites:
0
Home Style:
1 and Half Storey
Total Living Area:
974.78 sq. ft.
Main Level Finished Area:
640 sq. ft.
Lower Level Finished Area:
Above Grade Finished Area:
Below Grade Finished Area:
334.78 sq. ft.
Taxes:
Tax Assessed Value:
HOA Fee Includes:
Acreage:
No
Lot Area:
2,497 sq. ft.
Lot Frontage:
25'1"
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:
Levels:
One and One Half
Total Rooms Above Grade:
7
Year built:
1914 (Age: 112)
Bedrooms:
3 (Above Grd: 3)
Bedrooms Above Grade:
3
Bedrooms Below Grade:
0
Bathrooms:
2.0 (Full:2, Half:0)
Plan:
5730AJ
Heating:
Forced Air
Basement:
Full, Finished, Other
Foundation:
Poured Concrete
New Constr.:
No
Construction Material:
Wood Frame, Wood Siding
Structure Type:
House
Roof:
Asphalt Shingle
Ensuite:
No
Flooring:
Carpet, Hardwood
Cooling:
None
Fireplaces:
0
Garage:
No
Parking:
Carport
Parking Places:
1
Parking Total/Covered:
1 / -
Laundry Features:
Lower Level
Southwest
Altadore
Dishwasher, Dryer, Electric Stove, Microwave Hood Fan, Refrigerator, Washer
Large wooden entertainment unit in the living room
None Known
Floor
Type
Size
Other
Main Floor
Living Room
14'8" × 9'6"
Main Floor
Dining Room
11'6" × 9'10"
Main Floor
Dining Room
11'6" × 9'10"
Main Floor
Kitchen
9'9" × 9'2"
Main Floor
Bedroom - Primary
9'1" × 8'10"
Upper Level
Bedroom
10'2" × 7'10"
Upper Level
Bedroom
11'10" × 8'8"
Lower Level
Family Room
17'7" × 8'9"
Lower Level
Laundry
9'5" × 7'5"
Floor
Ensuite
Pieces
Other
Main Floor
No
4
9' x 5'
Lower Level
No
4
7'5" x 6'
Title to Land:
Fee Simple
Community Features:
Schools Nearby, Shopping Nearby, Sidewalks, Street Lights
Interior Features:
Ceiling Fan(s), Walk-In Closet(s)
Exterior Features:
Private Yard
Patio And Porch Features:
Deck
Lot Features:
Back Lane, Corner Lot, Front Yard
Num. of Parcels:
0
Fencing:
Fenced
Region:
Calgary
Zone:
CAL Zone CC
Zoning:
M-C1
Listed Date:
Apr 09, 2026
Days on Mkt:
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Listed by Charles
Data was last updated April 9, 2026 at 10:05 PM (UTC)
Area Statistics
Listings on market:
45
Avg list price:
$1,325,000
Min list price:
$218,000
Max list price:
$4,200,000
Avg days on market:
46
Min days on market:
2
Max days on market:
160
Avg price per sq.ft.:
$602.82
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.
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.