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

$1,549,000
Single Family beds: 5 baths: 2.0 2,821 sq. ft.

Main Photo: 78 WILLIAM Street W in Waterloo: Single Family for sale : MLS®# 40799715
Photo 1: 78 WILLIAM Street W in Waterloo: Single Family for sale : MLS®# 40799715
Photo 2: 78 WILLIAM Street W in Waterloo: Single Family for sale : MLS®# 40799715
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Status:
Active
Prop. Type:
Single Family
MLS® Num:
40799715
Bedrooms:
5
Bathrooms:
2
HALF AN ACRE IN UPTOWN WATERLOO! 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. (id:2493)
Property Type:
Single Family
Common Interest:
Freehold
Property Attached:
No
Total Living Area:
2,821 sq. ft.
Finished Area Above Grade:
2,821 sq. ft.
Zoning:
R4
Taxes:
$9,261 / -
Community:
415 - Uptown Waterloo/Westmount
Exterior Features:
Brick
Community Features:
Community Centre
View:
City view
Structure Type:
House
Appliances Included:
Washer, Refrigerator, Central Vacuum, Gas stove(s), Dishwasher
Home Style:
2 Level
Bedrooms:
5
Bedrooms Above Grade:
5
Bedrooms Below Grade:
0
Bathrooms:
2.0
Half Bathrooms:
1
Cooling:
None
Fireplace:
Yes
Fireplaces:
2
Foundation:
Stone
Heating:
Radiant heat, In Floor Heating, Natural gas
# Storeys:
2.0
Water:
Municipal water
Sewer:
Municipal sewage system
Basement:
Unfinished, Full
Lot Frontage:
66'
Lot Size:
0.51 acre(s)
Lot Details:
0.51
Lot Features:
Southern exposure
Parking:
Detached Garage
Total Parking Spaces:
10
Floor
Type
Size
Other
Main level
Sunroom
18'1" × 12'2"
-
Main level
Living room
21'6" × 16'3"
-
Main level
Kitchen
19'8" × 17'4"
-
Main level
Family room
16'11" × 12'5"
-
Main level
Dining room
17'4" × 16'9"
-
Second level
Primary Bedroom
17'5" × 14'5"
-
Second level
Bedroom
21'2" × 16'2"
-
Second level
Bedroom
11'11" × 9'11"
-
Second level
Bedroom
15'9" × 8'5"
-
Second level
Bedroom
15'1" × 8'3"
-
Basement
Utility room
16'9" × 11'3"
-
Basement
Storage
7'1" × 6'5"
-
Floor
Ensuite
Pieces
Other
Main level
No
2
Second level
No
3
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Listed by Corcoran Horizon Realty
Data was last updated January 20, 2026 at 05:15 PM (UTC)
Area Statistics
Listings on market:
34
Avg list price:
$934,450
Min list price:
$25,000
Max list price:
$2,300,000
Avg days on market:
66
Min days on market:
1
Max days on market:
181
Avg price per sq.ft.:
$443.41
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.

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