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78 W William Street
415 - Uptown Waterloo/Westmount Waterloo N2L 1J7

$2,289,500
Residential beds: 5 baths: 2.0 2,821 sq. ft.

Main Photo: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 1: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 2: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 3: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 4: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 5: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 6: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 7: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 8: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 9: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 10: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 11: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 12: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 13: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 14: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 15: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 16: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 17: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 18: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 19: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 20: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 21: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 22: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 23: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 24: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 25: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 26: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 27: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 28: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 29: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 30: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 31: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 32: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 33: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 34: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 35: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 36: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 37: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 38: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 39: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 40: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 41: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 42: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 43: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 44: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 45: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 46: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 47: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 48: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 49: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Photo 50: 78 W William Street in Waterloo: 415 - Uptown Waterloo/Westmount Single Family Residence for sale (4 - Waterloo West)  : MLS®# 40727507
Status:
Active
Prop. Type:
Residential
MLS® Num:
40727507
Bedrooms:
5
Bathrooms:
2
HALF AN ACRE IN UPTOWN WATERLOO- Live grand. Live grand and sever, or develop. Welcome to 78 William St W—a stately and elegant 5-bedroom home in Waterloo’s coveted Westmount neighborhood, just two blocks from Uptown conveniences and the Region's new LRT. Thoughtfully updated while retaining its original character, the home features gracious principal rooms ideal for both everyday living and entertaining. The spacious living and dining areas flow seamlessly, enhanced by large bay windows that flood the space with natural light and showcase beautiful architectural details—including original marble fireplaces that add timeless sophistication. The bright, functional kitchen offers ample storage and prep space, while the adjacent sunroom overlooks the expansive backyard and gardens—a peaceful spot for morning coffee or unwinding at the end of the day. Upstairs, you'll find five generously sized bedrooms, each with ample closet space, providing comfort and flexibility for families, guests, or work-from-home needs. Outside, the half-acre lot is a true highlight—offering privacy, mature trees, and abundant green space for recreation, gardening, or future development. Initial planning work has been completed to allow for lot severance, creating the potential to sell part of the land, build a custom home, or develop an investment property. Zoning also permits the construction of up to three Additional Dwelling Units (ADUs) in total. Whether you're seeking a distinctive family home with historic charm or a property with outstanding future potential, 78 William St W presents a rare opportunity in one of Waterloo's most desirable neighbourhoods.
Property Type:
Residential
Property SubType:
Single Family Residence
Listing General Location:
415 - Uptown Waterloo/Westmount, 4 - Waterloo West
Bedrooms:
5
Bathrooms:
2.0 (Full:1/Half:1)
Lot Size:
0.51 acre(s)
Lot Details:
66 x 329
Lot Depth:
329'
Lot Frontage:
66'
Frontage Type:
North
Kitchens:
1
Home Style:
Two Story
County Or Parish:
Waterloo
Taxes:
Property Attached:
Detached
Features:
Attached Garage: No, Crops Included: No, Garage: Yes, Common Elements Fee: No, New Construction: No
Construction:
Brick
Basement:
Development Potential, Full, Unfinished
Foundation:
Concrete Perimeter, Stone
UFFI:
No
Roof:
Asphalt Shing
Number of Buildings:
0
Total Floor Area:
2,820.67 sq. ft.
# Main Level Bathrooms:
1
Finished Area Above Grade:
2,820.67 sq. ft.
Fireplace:
true
Fireplaces:
2
Laundry Features:
Lower Level
Water Supply:
Municipal
Sewer:
Sewer (Municipal)
Cooling:
None
Heating:
Natural Gas, Radiant Floor, Radiant
Central Vac,Dishwasher,Gas Stove,Hot Water Tank Owned,Refrigerator,Smoke Detector,Washer
Water Heater, Dishwasher, Gas Stove, Hot Water Tank Owned, Refrigerator, Washer
Central Vacuum, Other
City
false
No
Westmount Rd S to Williams St
No
Smoke Detector
Floor
Type
Size
Other
Main Floor
Main Floor
Main Floor
Main Floor
Main Floor
2nd Floor
2nd Floor
2nd Floor
2nd Floor
2nd Floor
Basement
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: Yes, Common Elements Fee: No, New Construction: No
Road Access Fee:
Condo Corporation:
No
Zoning:
GR
Total Acres:
0.51
Topography:
Flat
Exposure / Faces:
South
Lot Site Features:
Urban, Arts Centre, Business Centre, City Lot, Library, Major Anchor, Major Highway, Park, Place of Worship, Public Transit, Rec./Community Centre, Schools, Shopping Nearby, Trails
Features:
Attached Garage: No, Crops Included: No, Garage: Yes, Common Elements Fee: No, New Construction: No
Garage Spaces:
1.0
Parking Places Covered:
1.0
Parking:
Detached Garage
# Of Total Parking Spaces:
10.0
# Of Open Parking Spaces:
9.0
Driveway Parking:
Private Drive Double Wide
Road Frontage Type:
Public Road
Total Units:
Listed Date:
May 13, 2025
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Listed by Corcoran Horizon Realty
Data was last updated May 16, 2025 at 03:50 AM (UTC)
Area Statistics
Listings on market:
39
Avg list price:
$649,000
Min list price:
$299,999
Max list price:
$2,995,000
Avg days on market:
34
Min days on market:
1
Max days on market:
183
Avg price per sq.ft.:
$546.32
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.
Brian Santos