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$1,397,888
15 Days On Site

78 William Street W
Waterloo, ONN2L 1J7

For Sale|Single Family Residence|Active
5
Beds
2
Total Baths
County:
Waterloo
Call Now: 289-338-0767
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289-338-0767
78 William Street W78 William Street W78 William Street W78 William Street W
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Monthly Payment (Est.)

$6,378
Calculator powered by Showcase IDX, a Constellation1 Company. Copyright ©2026 Information is deemed reliable but not guaranteed.

HALF AN ACRE IN UPTOWN WATERLOO! Live grand, sever the lot, or explore development potential. 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.

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Listing Snapshot
Price 
$1,397,888
Days On Site 
15 Days
Bedrooms 
5
Inside Area (SqFt) 
N/A
Total Baths 
2
Full Baths 
N/A
Partial Baths 
N/A
Lot Size 
0.51 Acres
Year Built 
N/A
MLS® Number 
X12862388
Status 
Active
Property Tax 
$9,261
Maintenance Fees 
N/A
Sq Ft Source 
N/A
Friends & Family
Recent Activity
7 days agoListing updated with changes from the MLS®
2 weeks agoListing first seen on site
General Features
Cross Street 
Westmount Rd S
Direction Faces 
North
Foundation 
Stone
Garage 
Yes
Garage Spaces 
1
Number Of Stories 
2
Parking 
Detached
Parking Spaces 
10
Property Sub Type 
Single Family Residence
Style 
2-Storey
Utilities 
Cable Available
Water Source 
Public
Zoning 
R4
Interior Features
Basement 
FullUnfinished
Fireplace 
Yes
Heating 
Natural GasRadiant
Interior 
Other
Bedroom 
Dimensions - 2.51 x 4.6Level - Second
Dining Room 
Dimensions - 5.28 x 5.11Level - Main
Family Room 
Dimensions - 5.16 x 3.78Level - Main
Kitchen 
Dimensions - 5.28 x 5.99Level - Main
Living Room 
Dimensions - 4.95 x 6.55Level - Main
Master Bedroom 
Dimensions - 5.31 x 4.39Level - Second
Other 
Dimensions - 2.16 x 1.96Level - Basement
Sunroom 
Dimensions - 5.51 x 3.71Level - Main
Utility Room 
Dimensions - 5.11 x 3.43Level - Basement
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Exterior Features
Construction Details 
Brick
Pool Features 
None
Roof 
Asphalt
View 
City
Waterview 
City
Listing courtesy of CORCORAN HORIZON REALTY

Listing information is provided by Participants of the Toronto Real Estate Board. VOW information is provided exclusively for personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but not guaranteed. Copyright 2026, Toronto Real Estate Board
Last checked 2026-03-25 08:07 AM UTC

Neighborhood & Commute
Source: Walkscore
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