78 William Street, Waterloo, ON

$1,397,888
MLS#:X12862388
5 beds
2 baths
2500-3000 sqft
10.0 parking
Residential Freehold
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Description

Property Highlights

Welcome to this remarkable ["2-Storey"] detached located in the coveted neighborhood of Waterloo. Expertly crafted featuring premium brick construction, this residence presents an exceptional opportunity offered at $1,397,888 to acquire a beautiful home in a highly sought-after setting. Designed for both comfortable daily living and elegant entertaining, the layout maximizes natural light, functional flow, and lifestyle utility.

  • 5 Bedrooms and 2 Bathrooms
  • Generous living space spanning 2500-3000 sqft on a premium 66 x 329 ft lot
  • Features a ["full", "unfinished"] basement, adding superb versatility for recreation, a home gym, or extra storage
  • 10.0 total parking spaces available with a convenient detached configuration
  • Notable attributes: Other, Water Heater
  • equipped with ["none"] central cooling and highly efficient radiant heating via gas

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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Key Features

Bedrooms
5
Bathrooms
2
Kitchens
1
Living Area
2500-3000 sqft
Property Type
Residential Freehold

Additional Details

StatusSold
Sold DateMarch 25, 2026
Sold price information is available to members only
Listed Date3/9/2026
Transaction TypeFor Sale

Property Details

Property Sub-TypeDetached
ConstructionBrick
Lot Size66 × 329 Feet
CountyWaterloo
Annual Tax$9,261
Legal DescriptionLT 15 PL 497 CITY OF WATERLOO; WATERLOO

Parking & Garage

Parking Spaces10.0
Garage Spaces9
Garage TypeDetached

Heating & Cooling

Heat SourceGas
Heat TypeRadiant
Cooling["None"]

Features

Property Features

Arts Centre, Hospital, Library, Park, Place Of Worship, Public Transit

Community Features

Location

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78 William Street, Waterloo, ON

Property History

No historical data available for this property.

This could be the first listing for this address.

Pricing & Value Insights

Data-driven valuation for 78 William Street W, Waterloo, ON N2L 1J7

Estimated Sales Range
$1.2M - $1.4M

Based on 0 recent similar sales in the pocket.

Market Speed
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Properties in this area are selling at a steady pace.

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Notice: Market Insights are generated by analyzing real-time data and should be used for informational purposes only. Consult with a licensed professional for exact valuations.
Financial Audit

Estimated Costs

Loan Amount$1,118,310.4
Monthly Mortgage$6,498
Property Tax (Est.)$772
Utilities & Maint.$350
Total Monthly Cost$7,620

Strategic Fiscal Clarity

Informed buyers do not make decisions based on list price alone. This analysis ensures your transition to a superior residence is supported by absolute fiscal certainty.

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Nearby Listings

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