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78 WILLIAM Street W, Waterloo, Ontario, N2L1J7

MLS: 40810734 | 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: Westmount Rd S to Williams St

Quick Facts

  • Property Type: House (Freehold)
  • Style: 2 Level
  • Bedrooms: 5 (5 above)
  • Bathrooms: 2 (1 half)
  • Living Area: 2,821 sq ft (262.1 m²)
  • Above Grade: 2,821 sq ft (262.1 m²)
  • Ownership: Freehold
  • Attached: No
  • Fireplaces: 2
  • Parking: 10 spaces (Detached Garage)
  • Lot Size: 0.5100 acres (0.21 ha)
  • Frontage: 66 ft (20.1 m)

Costs

  • Annual Taxes: $9,261.00

Listing Provided by: Corcoran Horizon Realty
Board: Cornerstone Association of REALTORS®
Data provided via CREA DDF®.

Detailed Features

Interior & Systems

  • Heating: Radiant heat, In Floor Heating, Natural gas
  • Cooling: None
  • Basement: Unfinished, Full
  • Appliances: Washer, Refrigerator, Central Vacuum, Gas stove(s), Dishwasher

Exterior & Construction

  • Style: 2 Level
  • Exterior: Brick
  • Foundation: Stone
  • Sewer: Municipal sewage system
  • Water: Municipal water

Lot & Land

  • Lot Size: 0.5100 acres (0.21 ha)
  • Frontage: 66 ft (20.1 m)
  • Features: Southern exposure
  • View: City view
  • Zoning: R4

Community & Neighbourhood

  • Community: Community Centre
  • Subdivision: 415 - Uptown Waterloo/Westmount

Room Details (14 rooms)

Basement
Utility room11'3" x 16'9" (188 ft²)
Storage6'5" x 7'1" (45 ft²)
Second level
Primary Bedroom14'5" x 17'5" (251 ft²)
Bedroom21'2" x 16'2" (342 ft²)
Bedroom9'11" x 11'11" (118 ft²)
Bedroom15'9" x 8'5" (133 ft²)
Bedroom15'1" x 8'3" (124 ft²)
3pc Bathroom
Main level
Sunroom12'2" x 18'1" (220 ft²)
Living room21'6" x 16'3" (349 ft²)
Kitchen19'8" x 17'4" (341 ft²)
Family room12'5" x 16'11" (210 ft²)
Dining room16'9" x 17'4" (290 ft²)
2pc Bathroom

Listing Information

MLS® Number40810734
BoardCornerstone
Originating SystemCornerstone Association of REALTORS®
BrokerageCorcoran Horizon Realty
Date ListedMarch 9, 2026
Last UpdatedMarch 14, 2026

Listing History

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

DateDays on MarketPriceEventListing ID
🔄3/14/20265Status Changed40810734
3/9/20260$1,397,888For Sale40810734
3/9/20260$1,397,888Listed40810734

Location & Neighborhood

📍78 WILLIAM Street W, Waterloo, Ontario, N2L1J7
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