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NEXT Open House + more
Sep 12, 2026 02:00 PM - 04:00 PM EDT

121 Allen Street W
415 - Uptown Waterloo/Westmount Waterloo N2L 1E8

$1,329,000
Residential beds: 4 baths: 3.0 2,745 sq. ft. built: 1926

Main Photo: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 1: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 2: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 3: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 4: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 5: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 6: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 7: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 8: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 9: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 10: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 11: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 12: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 13: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 14: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 15: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 16: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 17: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 18: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 19: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 20: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 21: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 22: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 23: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 24: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 25: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 26: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 27: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 28: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 29: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 30: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 31: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 32: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 33: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 34: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 35: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 36: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 37: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 38: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 39: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 40: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 41: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 42: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 43: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 44: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 45: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 46: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 47: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Photo 48: 121 Allen Street W in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40860096
Open House - Sep 12, 2026
02:00 PM - 04:00 PM EDT
NOTES: Open House on Saturday, September 12, 2026 2:00PM - 4:00PM
Open House - Sep 13, 2026
02:00 PM - 04:00 PM EDT
NOTES: Open House on Sunday, September 13, 2026 2:00PM - 4:00PM
Status:
Active
Prop. Type:
Residential
MLS® Num:
40860096
Bedrooms:
4
Bathrooms:
3
Year Built:
1926
PREMIUM OLD WESTMOUNT location, this updated century home effortlessly blends timeless character with modern comfort. From the moment you arrive, the curb appeal and classic architecture set the tone for a home that truly reflects the historic elegance of this coveted neighbourhood. Beautifully preserved details and tasteful upgrades throughout enhance its appeal.The main floor welcomes you with a warm inviting living room anchored by a gas fireplace, an elegant and spacious dining room, and a kitchen that maintains the integrity and character of the home while offering modern functionality, featuring new GE Cafe stainless steel appliances, granite countertops, and a generous dinette area, the kitchen provides direct access to a beautiful covered porch. A spacious mudroom adds valuable everyday convenience.The second level offers three well-appointed bedrooms and a four-piece family bathroom, while the third floor is dedicated to a truly impressive primary retreat. The massive primary bedroom offers exceptional space and privacy, complemented by its own ensuite bathroom.The lower level provides more living space and features another gas fireplace, creating a comfortable setting for an additional family room. Outside, the beautifully landscaped and fully fenced yard offers a wonderful extension of the home's living space, with a patio, covered porch and a charming treehouse. Tucked privately at the rear of the property is an impressive double-wide garage/workshop, complete with stairs leading to a large attic area offering excellent storage or exciting potential for future use. Surrounded by historic homes and elegant streetscapes, this exceptional property is ideally located close to Belmont Village, top-rated schools, shopping, dining, parks, and all the amenities that make Old Westmount such a sought-after place to call home. A rare opportunity to enjoy the character and craftsmanship of a century home with the comfort of thoughtful modern updates.
Property Type:
Residential
Property SubType:
Single Family Residence
Year built:
1926 (Age: 100)
Listing General Location:
415 - Uptown Waterloo/Westmount, 4 - Waterloo West
Bedrooms:
4
Bathrooms:
3.0 (Full:2/Half:1)
Lot Size:
0 sq. ft.
Lot Details:
80 x 110
Lot Depth:
110'
Lot Frontage:
80'
Frontage Type:
West
Lot Shape:
80.07 X 110 X 57.06 X 110.43
Kitchens:
1
Home Style:
Farmhouse
County Or Parish:
Waterloo
Taxes:
Property Attached:
Detached
Features:
Attached Garage: No, Crops Included: No, Garage: No, Common Elements Fee: No, New Construction: No
Construction:
Brick
Basement:
Full, Finished, Sump Pump
Linked Foundation:
No
UFFI:
No
Roof:
Asphalt Shing
Year Roof Replaced:
2007
Number of Buildings:
0
Total Floor Area:
2,745 sq. ft.
# Main Level Bathrooms:
1
Finished Area Above Grade:
2,167 sq. ft.
Finished Area Below Grade:
578 sq. ft.
Fireplace:
true
Fireplaces:
2
Fireplace Details:
Gas
Water Supply:
Municipal
Sewer:
Sewer (Municipal)
Cooling:
Ductless, Energy Efficient, Wall Unit(s), Window Unit(s)
Heating:
Natural Gas, Water
Built-in Microwave,Dishwasher,Dryer,Refrigerator,Stove,Washer,Window Coverings,Reverse Osmosis Drinking Water System, Smart Thermostats & Smart Doorbell, Wallbox Level 2 Ev Charger, Ductkess Head & Remote, New 3rd Floor Inverter Window A/C Unit
Water Purifier, Built-in Microwave, Dishwasher, Dryer, Refrigerator, Stove, Washer
Dekko Alea 32 Outdoor Gas Fire Pit, Vacancy Monitoring Sensors, Mounted Tv's And Brackets
Built-In Appliances
Window Coverings
Patio
false
No
Westmount Road to John St to Allen
No
Floor
Type
Size
Other
Main Floor
Main Floor
Main Floor
Main Floor
2nd Floor
2nd Floor
2nd Floor
3rd Floor
3rd Floor
Basement
Floor
Ensuite
Pieces
Other
Main Floor
2nd Floor
HST Applicable To Sale Price:
Included
Association Fee:
Association Fee Frequency:
Association Fee 2:
Association Fee 2 Frequency:
Administrative Fee:
Features:
Attached Garage: No, Crops Included: No, Garage: No, Common Elements Fee: No, New Construction: No
Road Access Fee:
Condo Corporation:
No
Zoning:
R3
Total Acres:
0
Utilities:
Cable Connected
Lot Site Features:
Urban, City Lot, Near Golf Course, Hospital, Public Transit, Rec./Community Centre, School Bus Route, Schools, Shopping Nearby, Trails
Features:
Attached Garage: No, Crops Included: No, Garage: No, Common Elements Fee: No, New Construction: No
Garage Spaces:
2.0
Parking Places Covered:
2.0
Parking:
Detached Garage
# Of Total Parking Spaces:
2.0
# Of Open Parking Spaces:
2.0
Driveway Parking:
Outside/Surface/Open, Private Drive Single Wide
Total Units:
Listed Date:
Sep 10, 2026
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Listed by Royal LePage Wolle Realty
Data was last updated September 11, 2026 at 01:50 AM (UTC)
Area Statistics
Listings on market:
49
Avg list price:
$519,900
Min list price:
$278,000
Max list price:
$5,700,000
Avg days on market:
37
Min days on market:
2
Max days on market:
140
Avg price per sq.ft.:
$466.14
These statistics are generated based on the current listing's property type and located in 415 - Uptown Waterloo/Westmount. Average values are derived using median calculations. This data is not produced by the MLS® system.
Brian Santos