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21 Lowther Avenue
Annex Toronto M5R 1C5

$6,395,000
Residential Freehold beds: 4+1 baths: 6.0

Front Exterior
Photo 1: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
Photo 2: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
Photo 3: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
Photo 4: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
Photo 5: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
Photo 6: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
Photo 7: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
Photo 8: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
Photo 9: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
Photo 10: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
Photo 11: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
Photo 12: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
Photo 13: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
Photo 14: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
Photo 15: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
Photo 16: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
Photo 17: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
Photo 18: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
Photo 19: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
Photo 20: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
Photo 21: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
Photo 22: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
Photo 23: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
Photo 24: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
Photo 25: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
Photo 26: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
Photo 27: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
Photo 28: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
Status:
Active
Prop. Type:
Residential Freehold
MLS® Num:
C12463983
Bedrooms:
4+1
Bathrooms:
6
Set on one of Yorkvilles most desirable streets, 21 Lowther Avenue is a home of rare distinction a modern architectural masterpiece by Charles Bunker, offering over 7,000 sq. ft. of refined living space. Designed with an emphasis on volume, proportion, and light, this residence combines impressive scale with effortless livability.The main floors loft-inspired layout creates an airy sense of openness, ideal for both grand entertaining and relaxed everyday living. Exceptional craftsmanship, soaring ceilings, and two rooftop terraces define the homes elevated style. Upstairs, generous bedrooms, library and family spaces, and luxurious detailing throughout provide a perfect balance of comfort and sophistication.With its extraordinary design, thoughtful flow, and unbeatable Yorkville location, 21 Lowther Avenue stands as a truly one-of-a-kind offering a home that embodies timeless quality and contemporary elegance in equal measure. 4 Levels above Grade
Property Type:
Residential Freehold
Property Sub Type:
Detached
Home Style:
Other
Approx. Age:
16-30
Total Approx Floor Area:
5000 +
Lot Depth:
138'3"
Lot Frontage:
21'3"
Direction Faces:
South
Bedrooms:
4+1
Bathrooms:
6.0
Water supply:
Municipal
Kitchens:
2
Kitchens in Basement:
1
Bedrooms Above Grade:
4
Bedrooms Below Grade:
1
Kitchens Above Grade:
1
Rooms Above Grade:
12
Rooms Below Grade:
3
Fractional Ownership:
No
Zoning:
R(d1*471)
Assignment:
No
Heating type:
Forced Air
Heating Fuel:
Gas
Foundation:
Unknown
Roof:
Asphalt Rolled, Flat
Basement:
Finished with Walk-Out
Fireplace/Stove:
Yes
Garage:
None
Garage Spaces:
0.0
Parking Features:
Private Double
Parking Spaces:
2
Total Parking Spaces:
2.0
Family Room:
Yes
Pool:
None
Link:
No
HST Applicable To Sale Price:
Included In
Assessment Year:
2025
Taxes:
$25,262 / 2025
Assessment:
$- / 2025
Toronto
Toronto C02
Annex
Central Vacuum, In-Law Capability
Please Include All Built-In Appliances, All Window Coverings, All Electric Light Fixtures, All Built-In Shelving, Newly Replaced Furnace , A/C & Hot Water Tank (2024) All Owned. New Driveway (October 2025)
Stucco (Plaster)
No
No
Floor
Type
Size
Other
Ground
Foyer
9' × 6'6"
B/I Closet, Hardwood Floor
Ground
Library
12'10" × 9'3"
Window, Hardwood Floor
Ground
Living Room
23'11" × 14'10"
W/O To Patio, Hardwood Floor, Gas Fireplace
Ground
Kitchen
17'4" × 14'10"
Modern Kitchen, B/I Appliances, Breakfast Bar
Ground
Dining Room
17'5" × 16'
Hardwood Floor, Open Concept
Ground
Pantry
6'11" × 6'7"
B/I Shelves
Second
Primary Bedroom
19'8" × 14'10"
Gas Fireplace, Hardwood Floor, Overlooks Backyard
Second
Game Room
16'6" × 10'8"
B/I Bookcase, Hardwood Floor, Window
Second
Library
22'3" × 16'6"
B/I Bookcase, Hardwood Floor
Third
Bedroom
14'4" × 13'6"
Double Closet, Broadloom, 4 Pc Ensuite
Third
Bedroom
13'10" × 9'6"
Double Closet, Broadloom, Window
Second
Family Room
18'6" × 14'10"
W/O To Deck, B/I Bar, Broadloom
Energy Certification:
No
Special Designation:
Unknown
Sewers:
Sewer
Air Conditioning:
Central Air
Central Vacuum:
Yes
Seller Property Info Statement:
No
Physically Handicapped-Equipped:
No
Ensuite Laundry:
No
Laundry Level:
Upper Level
Date Listed:
Oct 15, 2025
Original Price:
$6,395,000
  • Photo 1: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
    Front Exterior
  • Photo 2: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
    Photo 2 of 28
  • Photo 3: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
    Kitchen
  • Photo 4: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
    Photo 4 of 28
  • Photo 5: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
    Kitchen
  • Photo 6: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
    3rd Floor Patio/Deck
  • Photo 7: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
    Family Room/Wet Bar
  • Photo 8: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
    FR Walkout to Deck/Patio
  • Photo 9: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
    Basement
  • Photo 10: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
    Patio
  • Photo 11: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
    Bedroom
  • Photo 12: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
    Basement
  • Photo 13: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
    Basement with W/O
  • Photo 14: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
    3rd Floor Deck/Patio
  • Photo 15: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
    Stairs to 4th Flo
  • Photo 16: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
    Basement
  • Photo 17: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
    Basement
  • Photo 18: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
    LR Overlooking Patio
  • Photo 19: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
    Library/Family Room
  • Photo 20: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
    Master Bedroom
  • Photo 21: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
    MB Ensuite
  • Photo 22: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
    3rd Floor Deck/Patio
  • Photo 23: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
    3rd Floor Deck Patio
  • Photo 24: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
    Basement
  • Photo 25: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
    Basement Walkout
  • Photo 26: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
    LR
  • Photo 27: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
    Photo 27 of 28
  • Photo 28: 21 Lowther Avenue in Toronto: Annex House for sale (Toronto C02)  : MLS®# C12463983
    4th Floor Bedroom
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Listed by SOUTH HILL REAL ESTATE LIMITED
Data was last updated October 21, 2025 at 04:15 AM (UTC)
Area Statistics
Listings on market:
17
Avg list price:
$3,995,000
Min list price:
$2,198,500
Max list price:
$7,770,000
Avg days on market:
32
Min days on market:
5
Max days on market:
123
These statistics are generated based on the current listing's property type and located in Annex. Average values are derived using median calculations. This data is not produced by the MLS® system.
This website may only be used by consumers that have a bona fide interest in the purchase, sale, or lease of real estate of the type being offered via the website. The data relating to real estate on this website comes in part from the MLS® Reciprocity program of the PropTx MLS®. The data is deemed reliable but is not guaranteed to be accurate.