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78 WILLIAM STREET W, Waterloo, Ontario, N2L1J7

MLS: X12862388 | House (Freehold)

$1,397,888

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Property Description

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. (id:64974)

Directions: Cross Streets: Westmount Rd S. ** Directions: Westmount Rd S to Williams St.

Quick Facts

  • Property Type: House (Freehold)
  • Bedrooms: 5 (5 above)
  • Bathrooms: 2 (1 half)
  • Ownership: Freehold
  • Attached: No
  • Fireplaces: Yes
  • Parking: 10 spaces (Detached Garage, Garage)
  • Frontage: 66 ft (20.1 m)

Costs

  • Annual Taxes: $9,261.00 (2026)

Listing Provided by: CORCORAN HORIZON REALTY
Board: Toronto Regional Real Estate Board
Data provided via CREA DDF®.

Detailed Features

Interior & Systems

  • Heating: Radiant heat, Natural gas
  • Cooling: None
  • Basement: Unfinished, Full
  • Appliances: Washer, Refrigerator, Central Vacuum, Gas stove(s), Dishwasher, Water Heater
  • Utilities: Sewer, Electricity, Cable

Exterior & Construction

  • Exterior: Brick
  • Foundation: Stone, Concrete
  • Sewer: Sanitary sewer
  • Water: Municipal water

Lot & Land

  • Frontage: 66 ft (20.1 m)
  • View: City view
  • Zoning: R4

Room Details (12 rooms)

Main level
Dining room17'4" x 16'9" (290 ft²)
Family room16'11" x 12'5" (210 ft²)
Kitchen17'4" x 19'8" (340 ft²)
Living room16'3" x 21'6" (349 ft²)
Sunroom18'1" x 12'2" (220 ft²)
Basement
Other7'1" x 6'5" (46 ft²)
Utility room16'9" x 11'3" (189 ft²)
Second level
Bedroom8'3" x 15'1" (124 ft²)
Bedroom8'5" x 15'9" (133 ft²)
Bedroom11'11" x 9'11" (118 ft²)
Bedroom16'2" x 21'2" (342 ft²)
Primary Bedroom17'5" x 14'5" (251 ft²)

Listing Information

MLS® NumberX12862388
BoardToronto
Originating SystemToronto Regional Real Estate Board
BrokerageCORCORAN HORIZON REALTY
Date ListedMarch 9, 2026
Last UpdatedMarch 15, 2026

Listing History

Buy/Sell/Terminated/Expired listing history for 78 WILLIAM STREET W, Waterloo, Ontario, N2L1J7

DateDays on MarketPriceEventListing ID
🔄3/15/20265Status ChangedX12862388
3/9/20260$1,397,888For SaleX12862388
3/9/20260$1,397,888ListedX12862388

Location & Neighborhood

📍78 WILLIAM STREET W, Waterloo, Ontario, N2L1J7
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